A gamma camera was invented by H. Anger in the 1960s to produce images for medical diagnosis. It works by injecting a radioactive tracer into the patient, which emits gamma rays that are detected by a gamma camera. The camera uses a sodium iodide crystal to convert gamma rays into light flashes, which are converted into electrical signals by photomultipliers. A computer then analyzes the signals to construct an image showing the distribution of the radioactive tracer in the body.
A quality control for new equipment should start with an acceptance test to verify the equipment meets the specifications given by the vendor. The acceptance test should be performed according to accepted international standards and may require the use of instruments and phantoms not available in the department. The acceptance test forms the basis of the reference tests routinely performed in the department during the life-time of the equipment according to a schedule worked out by the medical physicist in cooperation with the nuclear medicine department. Certain parameters should be tested daily, others on weekly, monthly and yearly basis.
A quality control for new equipment should start with an acceptance test to verify the equipment meets the specifications given by the vendor. The acceptance test should be performed according to accepted international standards and may require the use of instruments and phantoms not available in the department. The acceptance test forms the basis of the reference tests routinely performed in the department during the life-time of the equipment according to a schedule worked out by the medical physicist in cooperation with the nuclear medicine department. Certain parameters should be tested daily, others on weekly, monthly and yearly basis.
basic and brief but informative knowledge about what is Gamma Camera... easy to understand as well as presenting during lectures and in classes . share it
basic and brief but informative knowledge about what is Gamma Camera... easy to understand as well as presenting during lectures and in classes . share it
Radiography Testing for Btech metallurgical and materirials science engineeringshyamkumarrakoti1
Radiography Testing for Btech metallurgical and materirials science engineering which is usefull in the field of non destructive testing methods this is one the of the non destructive testing method
Introduction to applying X-Ray imaging techniques to industrial machine vision applications. This presentation was given at the "Vision Show" in 2009 in Phoenix, AZ. It provides as overview of possible sensors to convert X-Rays into photons for imaging.
Due to the availability of a variety of MCT detectors, high speed infrared cameras have been designed to operate in several distinct spectral bands. The spectral band can be manipulated by varying the alloy composition of the HgCdTe and the detector set-point temperature. The result is a single band infrared detector with extraordinary quantum efficiency (typically above 70%) and high signal-to-noise ratio able to detect extremely small levels of infrared signal. Single-band MCT detectors typically fall in one of the five nominal spectral bands shown
Keywords: Signal processing, Applied optics, Computer graphics and vision, Electronics, Art, and Online photo collections
A computational camera attempts to digitally capture the essence of visual information by exploiting the synergistic combination of task-specific optics, illumination, sensors and processing. We will discuss and play with thermal cameras, multi-spectral cameras, high-speed, and 3D range-sensing cameras and camera arrays. We will learn about opportunities in scientific and medical imaging, mobile-phone based photography, camera for HCI and sensors mimicking animal eyes.
We will learn about the complete camera pipeline. In several hands-on projects we will build several physical imaging prototypes and understand how each stage of the imaging process can be manipulated.
We will learn about modern methods for capturing and sharing visual information. If novel cameras can be designed to sample light in radically new ways, then rich and useful forms of visual information may be recorded -- beyond those present in traditional protographs. Furthermore, if computational process can be made aware of these novel imaging models, them the scene can be analyzed in higher dimensions and novel aesthetic renderings of the visual information can be synthesized.
In this couse we will study this emerging multi-disciplinary field -- one which is at the intersection of signal processing, applied optics, computer graphics and vision, electronics, art, and online sharing through social networks. We will examine whether such innovative camera-like sensors can overcome the tough problems in scene understanding and generate insightful awareness. In addition, we will develop new algorithms to exploit unusual optics, programmable wavelength control, and femto-second accurate photon counting to decompose the sensed values into perceptually critical elements.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Immunizing Image Classifiers Against Localized Adversary Attacks
8labgamma
1. BIOMEDICAL ENGINEERING SYSTEM
Gamma Camera
Engr Khaleeque Ahmed
Sir syed university of engineering & technology
Karachi
2. GAMMA CAMERA
• A camera for nuclear imaging was invented by H. Anger in
the 1960’s (The Anger camera)
• Gamma camera is considered as one of the most
important devices used in the fields of nuclear medicine.
• Produce functional images of the body parts, used for
diagnosis purpose.
4. HOW A GAMMA CAMERA WORKS
Patient is injected by radiotracer(radioisotope), emits
gamma radiation. Then gamma camera scans the
radiation area and creates an image.
To detect the gamma photons we use a large crystal of
sodium iodide. The crystal gives a tiny flash of visible
light every time a gamma photon hits it. This flash is
picked up by photomultipliers which convert the flash
into an electrical signal. The electrical signals from the
photomultipliers are analyzed by a computer to
construct an image.
5. COMPONENTS OF GAMMA CAMERA
Collimator
Detector
PMT(photomultiplier tool)
Position localization circuit
Correction circuitry
Monitor
6. COLLIMATOR
Made up of large number of small holes drilled in a
plate of lead.
Provide right direction
Types
-parallel hole
-pin hole
-converging
-diverging
7. DETECTORS
Converts received radiations into light photons
Used scintillation detectors (NaI)
8. PMT(PHOTOMULTIPLIER TOOL)
Its an evacuated glass tube
Perform two functions
1st conversion of light photons
2nd signal amplification
