PIXELLIZED CDTE MEV-CAMERA FOR FLASH RADIOGRAPHY

Authors
GIGOT JF VIBERT P CUZIN M PEYRET O LEDAIN L MATHY F VERGER L
Citation
Jf. Gigot et al., PIXELLIZED CDTE MEV-CAMERA FOR FLASH RADIOGRAPHY, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 380(1-2), 1996, pp. 462-466
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
380
Issue
1-2
Year of publication
1996
Pages
462 - 466
Database
ISI
SICI code
0168-9002(1996)380:1-2<462:PCMFFR>2.0.ZU;2-1
Abstract
We are developing a new, well spatially resolved (millimetric resoluti on), high sensitivity and high quantum detectivity, large size pixelli zed CdTe(Zn) camera for high energy (>1 MeV) flash radiography applica tions. Energy deposition Monte Carlo simulations (MCNP4, CYLTRAN) pred ict the Line Spread Function (LSF) and the Modulation Transfer Functio n induced by this energy spread in pixellized detectors. They give als o the quantum efficiency, which provides a theoretical limit for the s ensitivity when we assume a low noise charge read-out. We present also the first experimental results which confirm the interest of a such d etector for the MeV hash radiography: the measured sensitivity is bett er than 1 mu Gy (20 MeV - 35 ns - pulsed generator with 5 cm lead sour ce filtration).