The document discusses plans for CLIC (Compact Linear Collider) in preparation for the next European strategy update in 2019/2020. It outlines the development phase goals of updating physics studies based on LHC results, developing a project plan with costing and staging, and completing key technical R&D. It also discusses plans for the preparation phase from 2020-2025, including developing final prototypes, establishing industrial production, and building facilities for testing components. Key challenges discussed are fully developing the industrial basis and qualifying components through testing before the planned start of construction.
Link Adapatation in Mobile Satellite Links: Field Trial Results using SDR and...Anxo Tato Arias
We describe the experiment that was carried out to communicate a Mobile Platform and a Ground Station through a Medium Earth Orbit (MEO) satellite. The physical layer in both ends, based on the specifications of the Satellite Component of the Universal Mobile Telecommunications System (S-UMTS), was implemented using Software Defined Radio (SDR) technology. The Mobile Terminal was boarded in both an unmanned aerial vehicle (UAV) and a car for the field trials. The ultimate goal was to test the practical performance of different physical layer adaptive techniques in the return link, and evaluate the open loop signal to noise ratio (SNR) contribution to the link adaptation algorithms.
The only documentation on the building downwash algorithm in AERMOD, referred to as PRIME, is found in the 2000 A&WMA Journal article by Schulman, Strimaitis and Scire. Recent field and wind tunnel studies have shown that AERMOD overpredicts concentrations by factors of 2 to 8 for certain building configurations. While a wind tunnel equivalent building dimension study (EBD) can be conducted to approximately correct the overprediction bias, past field and wind tunnel studies indicate that there are notable flaws in the PRIME building downwash theory. A detailed review of the theory supported by CFD and wind tunnel simulations of flow over simple rectangular buildings revealed the following serious theoretical flaws: enhanced turbulence in the building wake starting at the wrong longitudinal location; constant enhanced turbulence extending up to the wake height; constant initial enhanced turbulence in the building wake (does not vary with roughness or stability); discontinuities in the streamline calculations; and no method to account for streamlined or porous structures.
This paper documents some of the theoretical flaws that have been found in PRIME and provides supporting CFD and wind tunnel observations that confirm these findings. A suggested path forward to correct these problems is also outlined in accordance to Appendix W’s mandate that a model should be based on sound science and that its components are validated accordingly. In other words, corrections to the downwash theory in the model would ensure that the right answer is obtained for the right reason.
Evaluation of the Theoretical Problems with Building Downwash Using A New Met...Sergio A. Guerra
While the current EBD method is the best available option to determine correct building dimensions in the model, a different method was suggested by EPA in the 2011 Memo: Model Clearinghouse Review of EBD for AERMOD. Attachment B to the 2011 Memo includes an assessment of the Alcoa Davenport Works EBD Study. In this evaluation EPA compared wind tunnel observations with AERMOD derived concentrations. However, this evaluation has important shortcomings. First, to carry out this comparison between wind tunnel and AERMOD concentrations, it is necessary to collect velocity profiles that include longitudinal and vertical turbulent intensity measurements upwind of the stack. These data were not available for the EPA evaluation of the Alcoa Davenport Works EBD Study. Second, the wind tunnel model operating conditions were converted to full scale conditions by using exact similarity. However, exact similarity is not used to specify model operating conditions since only momentum ratios are matched but not buoyancy ones. Whereas EPA did not provide important details on how this study was performed, this paper outlines how to properly carry out this new method where AERMOD is used to determine equivalent building dimensions. The viability of this new method was also evaluated and discussed.
BIO-CAP-UK: Air/Oxy Biomass Combustion with CO2 Capture Technology, UK Study - presentation by Karen Finney in the Biomass CCS session at the UKCCSRC Cardiff Biannual Meeting, 10-11 September 2014
Seismic QC & Filtering with GeostatisticsGeovariances
The quality of seismic volumes is critical in building reliable reservoir models. Seismic data are often polluted by acquisition or processing artifacts which may have strong impact on subsequent seismic processing or interpretation. Geostatistics allows filtering efficiently seismic noise and artifacts without modifying the signal.
Geovariances provides solutions from seismic data quality control and filtering to reservoir characterization. This technology is based on geostatistics and all algorithms are available in Isatis, leader in geostatistical software solutions.
A coupled Electromagnetic-Mechanical analysis of next generation Radio Telesc...Altair
This work considers the design of large and complex receivers used in the field of radio astronomy, e.g. for the Square Kilometer Array (SKA) project. The purpose of this work is to consider a coupled simulation where the electromagnetic analysis, performed with the computational electromagnetic software package FEKO, is enhanced by the structural analysis offered by HyperWorks products such as HyperMesh and Optistruct. External influences such as gravity, wind-loading and thermal properties will be taken into account. This will enhance the electromagnetic simulation results, thereby aiding designers to mitigate these environmental effects.
Speakers
Dr. Danie Ludick, Postdoctoral researcher, Stellenbosch University
Basic description about how to do a Space Project, based on experiences with XaTcobeo cubesat, a University of Vigo project for ESA education, with the help of INTA.
License: Breogan Costa, University of Vigo, CERN, JINR.
Presentation made by Prof. Adriano Camps (Universitat Politècnica de Catalunya) at ICMARS 2010 (India, 16-December-2010) on the MIRAS instrument aboard ESA's SMOS mission.
Hybrid Evolutionary Approaches to Maximum Lifetime Routing and Energy Efficie...Alma Rahat
Mesh network topologies are becoming increasingly popular in battery-powered wireless sensor networks, primarily because of the extension of network range. However, multihop mesh networks suffer from higher energy costs, and the routing strategy employed directly affects the lifetime of nodes with limited energy resources. Hence when planning routes there are trade-offs to be considered between individual and system-wide battery lifetimes. We present a multiobjective routing optimisation approach using hybrid evolutionary algorithms to approximate the optimal trade-off between the minimum lifetime and the average lifetime of nodes in the network. In order to accomplish this combinatorial optimisation rapidly, our approach prunes the search space using k-shortest path pruning and a graph reduction method that finds candidate routes promoting long minimum lifetimes. When arbitrarily many routes from a node to the base station are permitted, optimal routes may be found as the solution to a well-known linear program. We present an evolutionary algorithm that finds good routes when each node is allowed only a small number of paths to the base station. On a real network deployed in the Victoria & Albert Museum, London, these solutions, using only three paths per node, are able to achieve minimum lifetimes of over 99% of the optimum linear program solution’s time to first sensor battery failure.
The link for the paper: http://www.mitpressjournals.org/doi/abs/10.1162/EVCO_a_00151#.Vv6oZmErJhE
More information on our work can be found on: http://emps.exeter.ac.uk/computer-science/wsn/
Case-study by CT-Ingénierie: Capella in the preliminary design of the micro l...Obeo
Discover why Capella has been chosen by CT Ingenierie and its partners, and how it has been deployed for guaranteeing the correct coordination between teams, requirement following, and for a rigorous description of the sub-systems developed by their partners.
CT Ingenierie is involved in the ENVOL project (European Newspace Vertical Orbital Launcher). Developing a small launch vehicle enabling cheap, frequent, and flexible access to the Low Earth Orbit.
What is project ENVOL?
The EU-funded ENVOL project intends to establish the first European commercial, competitive and green launch service.
The project will designate an innovative and industrial low-cost launch system, then demonstrate and advance crucial launcher technologies to guarantee market preparedness and competitiveness, then prepare a business plan and identify the institutions able to attract investments.
Link Adapatation in Mobile Satellite Links: Field Trial Results using SDR and...Anxo Tato Arias
We describe the experiment that was carried out to communicate a Mobile Platform and a Ground Station through a Medium Earth Orbit (MEO) satellite. The physical layer in both ends, based on the specifications of the Satellite Component of the Universal Mobile Telecommunications System (S-UMTS), was implemented using Software Defined Radio (SDR) technology. The Mobile Terminal was boarded in both an unmanned aerial vehicle (UAV) and a car for the field trials. The ultimate goal was to test the practical performance of different physical layer adaptive techniques in the return link, and evaluate the open loop signal to noise ratio (SNR) contribution to the link adaptation algorithms.
The only documentation on the building downwash algorithm in AERMOD, referred to as PRIME, is found in the 2000 A&WMA Journal article by Schulman, Strimaitis and Scire. Recent field and wind tunnel studies have shown that AERMOD overpredicts concentrations by factors of 2 to 8 for certain building configurations. While a wind tunnel equivalent building dimension study (EBD) can be conducted to approximately correct the overprediction bias, past field and wind tunnel studies indicate that there are notable flaws in the PRIME building downwash theory. A detailed review of the theory supported by CFD and wind tunnel simulations of flow over simple rectangular buildings revealed the following serious theoretical flaws: enhanced turbulence in the building wake starting at the wrong longitudinal location; constant enhanced turbulence extending up to the wake height; constant initial enhanced turbulence in the building wake (does not vary with roughness or stability); discontinuities in the streamline calculations; and no method to account for streamlined or porous structures.
This paper documents some of the theoretical flaws that have been found in PRIME and provides supporting CFD and wind tunnel observations that confirm these findings. A suggested path forward to correct these problems is also outlined in accordance to Appendix W’s mandate that a model should be based on sound science and that its components are validated accordingly. In other words, corrections to the downwash theory in the model would ensure that the right answer is obtained for the right reason.
Evaluation of the Theoretical Problems with Building Downwash Using A New Met...Sergio A. Guerra
While the current EBD method is the best available option to determine correct building dimensions in the model, a different method was suggested by EPA in the 2011 Memo: Model Clearinghouse Review of EBD for AERMOD. Attachment B to the 2011 Memo includes an assessment of the Alcoa Davenport Works EBD Study. In this evaluation EPA compared wind tunnel observations with AERMOD derived concentrations. However, this evaluation has important shortcomings. First, to carry out this comparison between wind tunnel and AERMOD concentrations, it is necessary to collect velocity profiles that include longitudinal and vertical turbulent intensity measurements upwind of the stack. These data were not available for the EPA evaluation of the Alcoa Davenport Works EBD Study. Second, the wind tunnel model operating conditions were converted to full scale conditions by using exact similarity. However, exact similarity is not used to specify model operating conditions since only momentum ratios are matched but not buoyancy ones. Whereas EPA did not provide important details on how this study was performed, this paper outlines how to properly carry out this new method where AERMOD is used to determine equivalent building dimensions. The viability of this new method was also evaluated and discussed.
BIO-CAP-UK: Air/Oxy Biomass Combustion with CO2 Capture Technology, UK Study - presentation by Karen Finney in the Biomass CCS session at the UKCCSRC Cardiff Biannual Meeting, 10-11 September 2014
Seismic QC & Filtering with GeostatisticsGeovariances
The quality of seismic volumes is critical in building reliable reservoir models. Seismic data are often polluted by acquisition or processing artifacts which may have strong impact on subsequent seismic processing or interpretation. Geostatistics allows filtering efficiently seismic noise and artifacts without modifying the signal.
Geovariances provides solutions from seismic data quality control and filtering to reservoir characterization. This technology is based on geostatistics and all algorithms are available in Isatis, leader in geostatistical software solutions.
A coupled Electromagnetic-Mechanical analysis of next generation Radio Telesc...Altair
This work considers the design of large and complex receivers used in the field of radio astronomy, e.g. for the Square Kilometer Array (SKA) project. The purpose of this work is to consider a coupled simulation where the electromagnetic analysis, performed with the computational electromagnetic software package FEKO, is enhanced by the structural analysis offered by HyperWorks products such as HyperMesh and Optistruct. External influences such as gravity, wind-loading and thermal properties will be taken into account. This will enhance the electromagnetic simulation results, thereby aiding designers to mitigate these environmental effects.
Speakers
Dr. Danie Ludick, Postdoctoral researcher, Stellenbosch University
Basic description about how to do a Space Project, based on experiences with XaTcobeo cubesat, a University of Vigo project for ESA education, with the help of INTA.
License: Breogan Costa, University of Vigo, CERN, JINR.
Presentation made by Prof. Adriano Camps (Universitat Politècnica de Catalunya) at ICMARS 2010 (India, 16-December-2010) on the MIRAS instrument aboard ESA's SMOS mission.
Hybrid Evolutionary Approaches to Maximum Lifetime Routing and Energy Efficie...Alma Rahat
Mesh network topologies are becoming increasingly popular in battery-powered wireless sensor networks, primarily because of the extension of network range. However, multihop mesh networks suffer from higher energy costs, and the routing strategy employed directly affects the lifetime of nodes with limited energy resources. Hence when planning routes there are trade-offs to be considered between individual and system-wide battery lifetimes. We present a multiobjective routing optimisation approach using hybrid evolutionary algorithms to approximate the optimal trade-off between the minimum lifetime and the average lifetime of nodes in the network. In order to accomplish this combinatorial optimisation rapidly, our approach prunes the search space using k-shortest path pruning and a graph reduction method that finds candidate routes promoting long minimum lifetimes. When arbitrarily many routes from a node to the base station are permitted, optimal routes may be found as the solution to a well-known linear program. We present an evolutionary algorithm that finds good routes when each node is allowed only a small number of paths to the base station. On a real network deployed in the Victoria & Albert Museum, London, these solutions, using only three paths per node, are able to achieve minimum lifetimes of over 99% of the optimum linear program solution’s time to first sensor battery failure.
The link for the paper: http://www.mitpressjournals.org/doi/abs/10.1162/EVCO_a_00151#.Vv6oZmErJhE
More information on our work can be found on: http://emps.exeter.ac.uk/computer-science/wsn/
Case-study by CT-Ingénierie: Capella in the preliminary design of the micro l...Obeo
Discover why Capella has been chosen by CT Ingenierie and its partners, and how it has been deployed for guaranteeing the correct coordination between teams, requirement following, and for a rigorous description of the sub-systems developed by their partners.
CT Ingenierie is involved in the ENVOL project (European Newspace Vertical Orbital Launcher). Developing a small launch vehicle enabling cheap, frequent, and flexible access to the Low Earth Orbit.
What is project ENVOL?
The EU-funded ENVOL project intends to establish the first European commercial, competitive and green launch service.
The project will designate an innovative and industrial low-cost launch system, then demonstrate and advance crucial launcher technologies to guarantee market preparedness and competitiveness, then prepare a business plan and identify the institutions able to attract investments.
TundraSystems Global LTD is an SME with the vision and mission to design and deliver new quantum technology solutions. The first phase of development is to develop Tundra Quantum Photonics Technology library. This forms part of Tundra System's strategy, in its quest to develop a complete Quantum Photonics Microprocessor the TundraProcessor. This library should also facilitate the development of the eco-system of Photonic Integrated Circuits to enable the building of complete HPC Systems surrounding the TundraProcessor.
This event covers what regulations and standards need to be in place to ensure the safety of new aircraft in built environments and near airports. Covering how a new and novel integrated aviation system should be regulated to ensure safety looking at regulations and standards, fuels and charging and how modelling mirrors reality.
The aim of the this event is to:
Convene interested parties to enable new collaborations to form
Raise awareness of the successful applicants from Phase I
Attract non-traditional aviation companies to Future Flight
Inform on the capabilities and expertise on offer to support your Future Flight project
Future Flight is a £125m Industrial Strategy Challenge Programme seeking to demonstrate novel aviation systems to completely transform the way we move people and goods. The programme seeks to demonstration a fully integrated system in 2024 delivered by large consortia of mixed expertise.
Find out more: https://ktn-uk.co.uk/news/future-flight-workshops
Salas, V. (2024) "John of St. Thomas (Poinsot) on the Science of Sacred Theol...Studia Poinsotiana
I Introduction
II Subalternation and Theology
III Theology and Dogmatic Declarations
IV The Mixed Principles of Theology
V Virtual Revelation: The Unity of Theology
VI Theology as a Natural Science
VII Theology’s Certitude
VIII Conclusion
Notes
Bibliography
All the contents are fully attributable to the author, Doctor Victor Salas. Should you wish to get this text republished, get in touch with the author or the editorial committee of the Studia Poinsotiana. Insofar as possible, we will be happy to broker your contact.
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...Travis Hills MN
Travis Hills of Minnesota developed a method to convert waste into high-value dry fertilizer, significantly enriching soil quality. By providing farmers with a valuable resource derived from waste, Travis Hills helps enhance farm profitability while promoting environmental stewardship. Travis Hills' sustainable practices lead to cost savings and increased revenue for farmers by improving resource efficiency and reducing waste.
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
Toxic effects of heavy metals : Lead and Arsenicsanjana502982
Heavy metals are naturally occuring metallic chemical elements that have relatively high density, and are toxic at even low concentrations. All toxic metals are termed as heavy metals irrespective of their atomic mass and density, eg. arsenic, lead, mercury, cadmium, thallium, chromium, etc.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
CLIC plans for the next European strategy update, and beyond
1. 1
R. Corsini – CLIC plans for the next European strategy update, and beyond
CLIC plans for the next European strategy update,
and beyond
Roberto Corsini
for the CLIC Accelerator Collaboration
2. 2
R. Corsini – CLIC plans for the next European strategy update, and beyond
CLIC position in the HEP (and CERN) landscape
F. Gianotti,
A great year ahead of us
F. Gianotti,
A great year ahead of us
… should keep the momentumWe know where we stand
3. 3
R. Corsini – CLIC plans for the next European strategy update, and beyond
CLIC Timeline
2013-18 Development Phase
Develop a Project Plan for a
staged implementation in
agreement with LHC findings;
further technical developments
with industry, performance
studies for accelerator parts and
systems, as well as for detectors.
2018-19 Decisions
On the basis of LHC data
and Project Plans (for CLIC and
other potential projects as FCC),
take decisions about next
project(s) at the Energy Frontier.
4-5 year Preparation Phase
Finalise implementation parameters,
Drive Beam Facility and other
system verifications, site
authorisation and preparation for
industrial procurement.
Prepare detailed Technical Proposals
for the detector-systems.
2024-25 Construction Start
Ready for full construction
and main tunnel excavation.
Construction Phase
Stage 1 construction of CLIC, in
parallel with detector
construction.
Preparation for implementation
of further stages.
Commissioning
Becoming ready for data-
taking as the LHC
programme reaches
completion.
DRIVE BEAM
LINAC
CLEX
CLIC Experimental Area
DELAY
LOOP
COMBINER
RING
CTF3 – Layout
10 m
4 A – 1.2 ms
150 MeV
28 A – 140 ns
150 MeV
Two-Beam Test Stand (TBTS)
Test Beam Line (TBL)
4. 4
R. Corsini – CLIC plans for the next European strategy update, and beyond
Development phase
Develop a Project Plan for a staged implementation of CLIC,
consistent with LHC findings, as an option for CERN in post-LHC era,
for consideration in next European Strategy update 2019/20
•Update physics studies in light of LHC results
•Rebaseline, cost/staging strategy with a 20-30 year perspective
•Complete key technical R&D
•More advanced industrialization studies
•Perform more system tests + verification
I PJ u r a M o u n t a in s
L a k e G e n e v a
G e n e v a
L e g e n d
C E R N e x is t in g L H C
C L I C 3 8 0 G e v
C L I C 3 T e V
P o t e n t ia l u n d e r g r o u n d s it in g :
C L I C 1 . 5 T e V
5. 5
R. Corsini – CLIC plans for the next European strategy update, and beyond
Key technical R&D
X-band accelerating structures
Key diagnostics
equipment
Other critical
components
(NbTi Wiggler test
at ANKA)
Module – alignment – assembly
High Efficiency
klystrons
6. 6
R. Corsini – CLIC plans for the next European strategy update, and beyond
High-power X-band testing at CERN
Current test:
Dogleg beam-loading
experiment, TD26CC#1 (in
CTF3 LINAC)
Previous tests:
TD24R05 (CTF2, 2013)
TD26CC#1 (CTF2, 2013)
T24 (Dogleg, 2014-15)
Current test:
T24_OPEN (in halves)
Previous test:
CLIC Crab cavity (2014-
15)
LLRF, pulse compressors
and waveguide network
to be completed at the
end 2015
Medium power test:
3D printed Ti waveguide
(Xbox-3A)
Xbox-1 Xbox-2 Xbox-3
OPERATIONAL OPERATIONAL Xbox-3A: OPERATIONAL
Xbox-3B/C/D: COMMISSIONING
CPI 50MW 1.5us klystron
Scandinova Modulator
Rep Rate 50Hz
CPI 50MW 1.5us klystron
Scandinova Modulator
Rep Rate 50Hz
4x Toshiba 6MW 5us klystron
4x Scandinova Modulators
Rep Rate 400Hz
7. 7
R. Corsini – CLIC plans for the next European strategy update, and beyond
Industrialization
L-band klystrons/modulators
Accelerating structures and other main
components of the Two-Beam Module
• Prepare for industrialization of individual
main components
• Study mass production/qualification
process/assembly/installation procedures
adapted to CLIC requirements
8. 8
R. Corsini – CLIC plans for the next European strategy update, and beyond
X-band technology
http://www.lightsources.org/facility/sacla
https://indico.cern.ch/event/358352/session/7/contribution/40
Linear collider - TeV XFEL – 1 to 10 GeV
Compact Compton source
few 10s MeV
Thompson/Compton
source – few 100s MeV
CLIC SACLA
Tsinghua U.
9. 9
R. Corsini – CLIC plans for the next European strategy update, and beyond
System Tests
Measure of transverse long-range
wake-fields in a CLIC structure @ FACET
ATF2
CTF3
FACET
10. 10
R. Corsini – CLIC plans for the next European strategy update, and beyond
CTF3 Experimental Program 2016
Drive-beam phase
feed-forward tests
• Increase reproducibility
• Demonstrate factor 10
jitter reduction
CLIC two-beam module tests
• Power production, stability + control of RF profile (beam
loading compensation)
• RF phase/amplitude drifts along TBL, PETS switching at full
power
• Alignment tests
Ongoing instrumentation tests
• Wake-Field Monitors
• Main and Drive beam BPMs …
Drive Beam
•Dispersion free-steering, dispersion matching, orbit
control, chromatic corrections, emittance, stability
• Beam deceleration + optics check in TBL
11. 11
R. Corsini – CLIC plans for the next European strategy update, and beyond
Discussions on a CALIFES - based facility
• Keep testing CLIC components (X-band structures, diags…) with beam
• Advance high-gradient e- accelerator R&D
• Support strategic partnerships with relevant communities: XFEL, medical,
industrial, space
• Enable instrumentation/equipment tests for consolidating CERN
accelerator complex (LHC and injectors)
• Provide unique + complementary test facility for CERN’s European (and
worldwide) users
• Maintain accelerator training facility for next generation of accelerator
scientists + engineers
Re-use 1/3 CTF3 area; 80% equipment available
12. 12
R. Corsini – CLIC plans for the next European strategy update, and beyond
Proposal of a CALIFES-based Accelerator Test Stand
13. 13
R. Corsini – CLIC plans for the next European strategy update, and beyond
Development phase - Main goals/deliverables
• Concise project plan document: physics, machine parameters,
cost, power, site, staging, construction schedule, main technical issues,
preparation phase (2019- 2025) summary, detector studies.
• Comprehensive physics and detector documentation: summary
papers planned 2015-2018 covering physics topics, detector studies
and R&D.
• Detailed, consistent technical documentation across project:
EDMS/WBS based.
• Technology transfer/spin-off document, including training (PhDs,
postdocs, fellows).
• Preparation phase plan document: critical parameters, status and
next steps 2019-2025 - what is needed before project construction start
up, strategy, risks and how to address them, inside and outside CERN,
and involving industry.
14. 14
R. Corsini – CLIC plans for the next European strategy update, and beyond
The Preparation phase - “Technical” considerations
• What we will have in 2019:
• A basic design for the first low energy stage
• A reasonable & flexible upgrade scenario
• A credible cost and power consumption update
• Prototypes of several key components (NOT in final state)
• A work plan for the next phase (project preparation, 2020-2025)
• What will be missing, but will be needed before construction could start:
• A Technical Design
• Site detailed studies and authorizations
• Finalized prototypes of all main components
• Fully developed industrial basis for main components
• Facilities for testing and qualification of components
15. 15
R. Corsini – CLIC plans for the next European strategy update, and beyond
“Other considerations”
• Timeline & resources availability at CERN
• What kind of decision may we expect in 2019?
What will be the approval procedure of the project after that?
What resources may we expect in the period 2020-2025?
• Should we propose a technically limited plan, or anticipate at least to
some extent resources and time constraints?
CLIC CDR CLIC post-CDR development CLIC Project Preparation CONSTRUCTION
16. 16
R. Corsini – CLIC plans for the next European strategy update, and beyond
Finalized prototypes of all main components I
• Modules – status before 2020
• Two-Beam Modules – LAB, design more or less
consistent with CDR parameters, but
not fully representative (use of components
mock-ups, …)
• TBM – CLEX, fully operational components,
but design adapted to CTF3
• PACMAN – Fundamental input to new design
• Klystron-based Modules – Only sketches so far
• Should have full design of both two-beam
and klystron based versions before 2020
• Drive Beam accelerator units
• Klystrons (1st
generation) under procurement in Industry.
• Modulators under development
• Structure design exist
• R&D on higher efficiency klystrons ongoing
• Should have full unit (1st
generation) by 2020, RF tested
17. 17
R. Corsini – CLIC plans for the next European strategy update, and beyond
Finalized prototypes of all main components II
• Main linac modules should be the first priority, will need time to build – and
test – prototypes (even more if we should iterate the process).
• Drive beam linac modules should be in a more advanced state by 2020.
However, in case we will aim at a CLIC Zero like facility for the preparation
phase, they may also be very much on the critical path.
• Of course full prototypes of main linac modules and DB accelerator units
prototypes are mandatory before construction start.
However:
• We should review what other components will need prototyping (mainly
items critical for performance, e.g., extraction kickers, SC wigglers, phase
feed-forward components, specific diagnostics components…).
• Even more than that, we have to define and include in the plan a
meaningful testing program for all prototypes.
18. 18
R. Corsini – CLIC plans for the next European strategy update, and beyond
Fully developed industrial basis for main components
• Modules – still a long way to full industrialization for all components full
industrialization must be addressed after new generation design.
Further considerations:
• Industrialization of accelerating structures including assembly should be done as
soon as possible
• X-FEL projects based on X-band are an invaluable opportunity to develop
industrial basis
• However, they are not fully applicable to CLIC modules (even for klystron-based)
• Drive Beam Accelerator components – R&D on CLIC front-end
components have put us on the right track
However:
• Modulators will not be fully industrialized in 2020
• Same for accelerator structures (but they are relatively standard components…)
• Klystrons may need a second iteration if R&D on high efficiency tubes successful
• Need to keep momentum and critical mass…
19. 19
R. Corsini – CLIC plans for the next European strategy update, and beyond
Facilities for testing and qualification of components
• Such facilities will be needed at the latest in the early stage of construction
• May have a very long lead time, so their construction should be part of the
project preparation
• CLIC Zero may be one of these, its main use should indeed be the
qualification of two-beam modules. It is therefore critical to understand
early what will be the needs for qualification and the corresponding
procedures
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R. Corsini – CLIC plans for the next European strategy update, and beyond
RF conditioning, structure qualification,
operational issues
• Possibly the main critical issue linked to that is RF conditioning of
accelerating structure and subsequent breakdown behavior
• It is paramount to collect a good statistics in the high-gradient tests in
order to understand the process and develop a realistic strategy for
conditioning.
Important questions:
• How many structures will have to be rejected? How to detect the faulty ones
early on during conditioning?
• How many structures will have to be (pre-)conditioned in parallel?
• Would it be acceptable to condition the structures in situ?
• How much of the conditioning should be done before?
• Will we need special procedures to preserve performance during transport?
• Will we need to reprocess installed structures occasionally? Do we need a very
fast PETS on-off mechanism?
• …
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R. Corsini – CLIC plans for the next European strategy update, and beyond
The CLIC Zero issue
• CLIC Zero was proposed in the past as part of the post-CDR phase.
Motivations:
• Focus to develop main components to large scale
• Needed for modules qualification tests
• Gain experience/time in operation of full scale drive beam complex
• Full-scale system test for Two-Beam
• Main issue: cost (~300 MCHF, to be reviewed) and time (a few years)
• Will need a serious commitment
towards CLIC
• May CLIC Zero be integrated in
early construction stage?
• Were will we test modules?
• What kind of facility will we need
if we choose the klystron option?
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R. Corsini – CLIC plans for the next European strategy update, and beyond
Two-beam and/or klystron based 1st
stage
• Prototypes, testing procedures and testing facilities may be very different
for the two cases
• The two options should be pursued in parallel in the present stage
• However, we should soon define a decision point, in order to not duplicate
efforts in a period were investment will have to go up
• Will we have a decision already before 2020?
• Should we present two alternative plans for the next phase?
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R. Corsini – CLIC plans for the next European strategy update, and beyond
Conclusion and Outlook
• CLIC is one of the main options for the future of CERN and of high energy
physics in general after LHC.
• We have a well defined mandate to complete and document the CLIC
study in preparation for the next European Strategy exercise (2018/2019),
when an informed decision should be taken (hopefully with good
indications from physics results from LHC run2) and we have a clear plan to
fulfill such a mandate.
• One of the deliverables of the present phase is a detailed plan for the CLIC
Preparation Phase (2020-2025), to bring the project at the start of
construction in case of a positive decision.
• It is now time to start developing in detail such a plan. Most of the needed
information exists, and we should be able to get what is still missing in the
next couple of years, in the framework of the present program.
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R. Corsini – CLIC plans for the next European strategy update, and beyond
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R. Corsini – CLIC plans for the next European strategy update, and beyond