Formation culture digitale CCM Benchmark
•Download as PPTX, PDF•
1 like•369 views
Formation culture digitale CCM Benchmark
Report
Share
Report
Share
Recommended
A Profibus-based Control System for Nuclear Physics Applications - The 6th World Multi-Conference on Systemics, Cybernetics and Informatics SCI 2002, July 2002, Orlando, Florida
di O. Mirabella, V. Bellini, C. Randieri, C. Spitale
Abstract
In this paper we present the results of implementation of a remote control system based on ProFiBus technologies used for the remote control of experimental nuclear physics apparata. Remote control makes experiment handling more flexible, eliminating any problems originating from the need for direct access to the systems being controlled. In the paper we describe two different applications. The first application of the ProFiBus is the remote control of a multidetector (made up of a bidimensional array of CsI scintillators) used to detect light nuclear particles, as protons and/or light ions. In the second application, we present an implementation of the control of a vacuum system suitable for a special chamber used for the development and testing of particle detectors operating in vacuum conditions.14 A Profibus-based Control System for Nuclear Physics Applications - The 6th...
14 A Profibus-based Control System for Nuclear Physics Applications - The 6th...Cristian Randieri PhD
Recommended
A Profibus-based Control System for Nuclear Physics Applications - The 6th World Multi-Conference on Systemics, Cybernetics and Informatics SCI 2002, July 2002, Orlando, Florida
di O. Mirabella, V. Bellini, C. Randieri, C. Spitale
Abstract
In this paper we present the results of implementation of a remote control system based on ProFiBus technologies used for the remote control of experimental nuclear physics apparata. Remote control makes experiment handling more flexible, eliminating any problems originating from the need for direct access to the systems being controlled. In the paper we describe two different applications. The first application of the ProFiBus is the remote control of a multidetector (made up of a bidimensional array of CsI scintillators) used to detect light nuclear particles, as protons and/or light ions. In the second application, we present an implementation of the control of a vacuum system suitable for a special chamber used for the development and testing of particle detectors operating in vacuum conditions.14 A Profibus-based Control System for Nuclear Physics Applications - The 6th...
14 A Profibus-based Control System for Nuclear Physics Applications - The 6th...Cristian Randieri PhD
Carrier Dynamics in CVD Diamond: Electron and Hole Contributions - 13th European Conference on Diamond, Diamond-Like Materials, Carbon Nanotubes, Nitrides and Silicon Carbide (Diamond 2002). Diamond and Related Materials, Elsevier Science, March-July 2003, Vol. 12, N. 3-7, pp. 499–502
di C. Tuvè, V. Bellini, R. Potenza, C. Randieri, C. Sutera, G. Pucella, M. Marinelli, E. Milani, A. Paoletti, A. Tucciarone, G. Verona-Rinati (2003)
Abstract
The transport properties in synthetic diamond are studied using high quality diamond films grown by microwave plasma enhanced chemical vapor deposition (CVD). In particular, electron and hole contributions to the diamond carrier dynamics are successfully separated and defect distribution inside specimens is obtained. This is achieved through a systematic investigation of the signals obtained from properly biased diamonds irradiated with differently penetrating nuclear particles. To this purpose 12C ions produced by the 15 MV Tandem accelerator of the Southern National Laboratories of INFN in Catania (Italy) are used as a probe. The ion beam energy is varied in the 22–91 MeV range (penetration depth from 10.5 mm to the thickness of the used samples, deposited energies from 22 to 62 MeV and mean energy densities from 0.8 to 2.1 MeVymm, respectively). The sample responses are studied as a function of the 12C energy and penetration depth, both in the positive and negative bias polarization. The experimental results clearly show that, when the detector is previously driven in the so-called pumped state by 90Sr b-particle irradiation, a different behavior of signals is observed in the positive and negative polarization states. The data are analysed in the framework of a properly modified Hecht model were the different behavior of carriers and influence of the variation in the ionization density along the path of the incident particles are considered. As a novelty the inhomogeneous distribution of defects is taken into account. By fitting the experimental curves with the model, a quantitative estimate of the defects distribution and of the correlated mean drift distance for electron and holes can be obtained. A good agreement is observed, thus allowing a better understanding of the diamond growth. 16 Carrier Dynamics in CVD Diamond: Electron and Hole Contributions - Diamond...
16 Carrier Dynamics in CVD Diamond: Electron and Hole Contributions - Diamond...Cristian Randieri PhD
More Related Content
Viewers also liked
Carrier Dynamics in CVD Diamond: Electron and Hole Contributions - 13th European Conference on Diamond, Diamond-Like Materials, Carbon Nanotubes, Nitrides and Silicon Carbide (Diamond 2002). Diamond and Related Materials, Elsevier Science, March-July 2003, Vol. 12, N. 3-7, pp. 499–502
di C. Tuvè, V. Bellini, R. Potenza, C. Randieri, C. Sutera, G. Pucella, M. Marinelli, E. Milani, A. Paoletti, A. Tucciarone, G. Verona-Rinati (2003)
Abstract
The transport properties in synthetic diamond are studied using high quality diamond films grown by microwave plasma enhanced chemical vapor deposition (CVD). In particular, electron and hole contributions to the diamond carrier dynamics are successfully separated and defect distribution inside specimens is obtained. This is achieved through a systematic investigation of the signals obtained from properly biased diamonds irradiated with differently penetrating nuclear particles. To this purpose 12C ions produced by the 15 MV Tandem accelerator of the Southern National Laboratories of INFN in Catania (Italy) are used as a probe. The ion beam energy is varied in the 22–91 MeV range (penetration depth from 10.5 mm to the thickness of the used samples, deposited energies from 22 to 62 MeV and mean energy densities from 0.8 to 2.1 MeVymm, respectively). The sample responses are studied as a function of the 12C energy and penetration depth, both in the positive and negative bias polarization. The experimental results clearly show that, when the detector is previously driven in the so-called pumped state by 90Sr b-particle irradiation, a different behavior of signals is observed in the positive and negative polarization states. The data are analysed in the framework of a properly modified Hecht model were the different behavior of carriers and influence of the variation in the ionization density along the path of the incident particles are considered. As a novelty the inhomogeneous distribution of defects is taken into account. By fitting the experimental curves with the model, a quantitative estimate of the defects distribution and of the correlated mean drift distance for electron and holes can be obtained. A good agreement is observed, thus allowing a better understanding of the diamond growth. 16 Carrier Dynamics in CVD Diamond: Electron and Hole Contributions - Diamond...
16 Carrier Dynamics in CVD Diamond: Electron and Hole Contributions - Diamond...Cristian Randieri PhD
Viewers also liked (12)
16 Carrier Dynamics in CVD Diamond: Electron and Hole Contributions - Diamond...
16 Carrier Dynamics in CVD Diamond: Electron and Hole Contributions - Diamond...
Repurposing Content to Keep your Hospital Intranet Vibrant
Repurposing Content to Keep your Hospital Intranet Vibrant
O2 Worldwide Review | Is The O2 Worldwide Business For You Or Not?
O2 Worldwide Review | Is The O2 Worldwide Business For You Or Not?