NDLI: DOI detection capability of 3D crystal array standing over two PMTs

Content Provider	IEEE Xplore Digital Library
Author	Hamamoto, M. Inadama, N. Murayama, H. Yamaya, T. Tsuda, T. Ono, Y.
Copyright Year	2005
Description	Author affiliation: Graduate Sch. Sci. & Tech., Waseda Univ., Tokyo, Japan (Hamamoto, M.)
Abstract	Absence of scintillation crystal in the region between adjacent PMTs, PMT blind region, will cause loss of data sampling and less sensitivity in a PET or another system. We propose design of a depth of interaction (DOI) detector to fill up the PMT blind region with crystals. In the design, a 3-dimensional (3D) array of single kind crystals stands over two PMTs. The crystal array is optically coupled to the PMTs directly and materials between crystal elements are chosen among optical film, coupling material and just remained as air gap to control scintillation light path in the crystal array instead of coupling a light guide on the bottom of the array as is generally done. Not only reflector but translucent film is also utilized as optical film in the DOI detector design. In this paper, first, we seek for an available DOI crystal array design in simple setting with a PMT, and then we demonstrate its DOI detection capability in the setting with two PMTs. The DOI detector is developed with the intention of the use in jPET-RD system; the PET system we have developed for small animals. In the system, there is about 6 mm interval in axial direction between outer anodes of adjacent two PMTs. The cross section of the crystal elements is 1.46 mm /spl times/ 1.46 mm in jPET-RD detector so that 2-layers of four crystals are involved in the PMT blind region. We introduce the design of the 2-layer DOI crystal array for the region and the results of its performance evaluation.
Starting Page	5
Ending Page	1572
File Size	888519
Page Count	1568
File Format	PDF
ISBN	0780392213
ISSN	10957863
DOI	10.1109/NSSMIC.2005.1596618
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-23
Publisher Place	Puerto Rico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical arrays Optical films Solid scintillation detectors Crystals Optical coupling Positron emission tomography Crystalline materials Optical materials Sampling methods Optical sensors
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
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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