NDLI: Simulation and measurement of gamma ray and annihilation photon imaging detectors

Content Provider	IEEE Xplore Digital Library
Author	Habte, F. Olcott, P.D. Foudray, A.M.K. Levin, C.S. Zhang, J. Chinn, G.
Copyright Year	2004
Description	Author affiliation: Dept. of Radiol., Stanford Univ., CA, USA (Habte, F.; Olcott, P.D.; Foudray, A.M.K.; Levin, C.S.; Zhang, J.; Chinn, G.)
Abstract	We have developed a simulation tool that model position sensitive gamma ray and annihilation photon detectors to realistically estimate the detector performance. The simulation is based on Monte-Carlo simulation code that calculates the probability of photoelectric or Compton interaction in a given detector geometry. The propagation of scintillation light of each interaction is simulated using DETECT2000. To approximate the actual signal response of a detector, the physical geometry of each position-sensitive photon detector is modeled. The simulation is tested using position sensitive PMTs with pixellated LSO and Na(Tl) crystals. Qualitatively, the simulated and measured flood images compared very well. Both show similar edge effects and resolved the same number of crystals (21/spl times/21 for LSO and 27/spl times/27 for NaI(Tl)) compared to the "ideal" position sensitive detector resolving 22/spl times/22 for LSO and 29/spl times/29 for NaI(Tl) crystals after energy gating is applied. An intrinsic spatial integral non-linearity (INL) of 1% (for simulation) and 1.4% (for measured data before gain correction) was calculated for NaI(Tl). For LSO less than 2.3% INL is obtained in both cases (??). The linearity match is expected to improve when more accurate detector model and gain correction are applied. A finite element method is used to model with good approximation a position sensitive avalanche photodiode (PSAPD) detector surface. A third or higher order polynomial fit is applied to to an electrical Finite Element Model of PSAPD detector and provided good match with measurement, including the generation of a similar pincushion distortion pattern.
Starting Page	4019
Ending Page	4022
File Size	1207027
Page Count	4
File Format	PDF
ISBN	0780387007
ISSN	10823654
e-ISBN	0780387015
DOI	10.1109/NSSMIC.2004.1466759
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-10-16
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical imaging Gamma ray detection Gamma ray detectors Solid scintillation detectors Position sensitive particle detectors Solid modeling Information geometry Photonic crystals Image edge detection Energy resolution
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Characterization of light output from narrow sodium iodide detectors

Digital position sensitive discrimination for 2-dimensional scintillation detectors

Impact of crystal quality, geometry and surface finish for 3D impact position measurements in gamma ray detection systems

Computer simulation of four-layer depth of interaction detector for PET

Positioning annihilation photon interactions in a thin LSO crystal sheet with a position-sensitive avalanche photodiode

Development of continuous detectors for a high resolution animal PET system

Reducing edge effects and improving position resolution in position sensitive NaI (Tl) detectors

DRAGO: a Gamma-ray Imager for Medical Imaging

Portable wide-angle /spl gamma/-ray vision systems

Simulation and measurement of gamma ray and annihilation photon imaging detectors

Similar Documents

Characterization of light output from narrow sodium iodide detectors

Digital position sensitive discrimination for 2-dimensional scintillation detectors

Impact of crystal quality, geometry and surface finish for 3D impact position measurements in gamma ray detection systems

Computer simulation of four-layer depth of interaction detector for PET

Positioning annihilation photon interactions in a thin LSO crystal sheet with a position-sensitive avalanche photodiode

Development of continuous detectors for a high resolution animal PET system

Reducing edge effects and improving position resolution in position sensitive NaI (Tl) detectors

DRAGO: a Gamma-ray Imager for Medical Imaging

Portable wide-angle /spl gamma/-ray vision systems

Simulation and measurement of gamma ray and annihilation photon imaging detectors