skip to main content

Title: Medipix2/USB Portable Radiation Camera

Advances in the field of semiconductor technologies in the last years make possible to develop new types of ionizing radiation detectors. The Medipix2 readout ASIC is an example of such a device. It is the hybrid single photon counting imaging chip (sensor and readout chips are fabricated separately). With an appropriate sensor chip on the top, it can count single X-ray photons, without any noise or dark current, at high fluxes (several Gigaphotons per cm{sup 2} per second). It also offers excellent radiation hardness and good position resolution (256x256 pixels, each pixel has a 55x55 {mu}m{sup 2} area). To make the Medipix2 imaging chip more portable for specific applications a microprocessor controlled read-out system based on the USB (Universal Serial Bus) interface has been developed. It integrates all necessary detector support into one compact device (75x46 mm{sup 2}). All power supplies including sensor bias (up to 100 V) are internally derived from the voltage provided by the USB connection.
Authors:
; ; ; ;  [1]
  1. Institute of Experimental and Applied Physics, Czech Technical University in Prague Horska 3a/22, CZ-12800 Prague 2 (Czech Republic)
Publication Date:
OSTI Identifier:
21039371
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 958; Journal Issue: 1; Conference: 4. International summer school on nuclear physics methods and accelerators in biology and medicine, Prague (Czech Republic), 8-19 Jul 2007; Other Information: DOI: 10.1063/1.2825757; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CAMERAS; EQUIPMENT INTERFACES; IMAGES; MICROPROCESSORS; PHOTONS; POWER SUPPLIES; READOUT SYSTEMS; RESOLUTION; SEMICONDUCTOR MATERIALS; SENSORS; SI SEMICONDUCTOR DETECTORS; X RADIATION; X-RAY DETECTION