NDLI: Single neutron pixel detector based on Medipix-1 device

Content Provider	IEEE Xplore Digital Library
Author	Jakubek, J. Pospisil, S. Uher, J. Vacik, J. Vavrik, D.
Copyright Year	2004
Description	Author affiliation: Inst. of Exp. & Appl. Phys., Czech Tech. Univ., Prague, Czech Republic (Jakubek, J.; Pospisil, S.; Uher, J.)
Abstract	Neutron transmission radiography (neutronography) is based on the application of the universal law of attenuation of radiation passing through matter. Thanks to different values of neutron and X-ray attenuation coefficients in matter, neutronography can produce contrast images of materials, which are roentgenographically indistinguishable (typically materials containing light element; like Hydrogen, e.g. plastics or biological samples). Reliable performance of neutron detecting device is essential for the acquisition of high quality neutronograms. Nowadays promising digital detector systems such as Medipix are available and make possible real time imaging with high sensitivity and broad dynamic range. A single neutron pixel detector based on a single X-ray photon pixel detector device Medipix-1 is presented. Thermal neutrons are converted in a /sup 6/LiF layer. Tritons and alpha particles are subsequently detected by a silicon pixel detector (64 /spl times/ 64 square pixels, 170 /spl mu/m /spl times/ 170 /spl mu/m each), which is connected to the Medipix-1 readout chip. Spatial and time resolution, detection efficiency and other detector properties are determined and compared with Monte-Carlo simulations. Several images of real objects demonstrating the capabilities of the technique will be presented.
Starting Page	1444
Ending Page	1447
File Size	843912
Page Count	4
File Format	PDF
ISBN	0780382579
ISSN	10823654
DOI	10.1109/NSSMIC.2003.1351966
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Neutrons Optical attenuators X-ray imaging Biological materials X-ray detection X-ray detectors Radiography Hydrogen Plastics Real time systems
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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