NDLI: A novel parallel hole collimator for high resolution SPET imaging with a compact LaBr3 gamma camera

Content Provider	IEEE Xplore Digital Library
Author	Pani, R. Pellegrini, R. Bennati, P. Cinti, M. N. Ridolfi, S. Scafe, R. De Vincentis, G. Lo Meo, S. Lanconelli, N. Navarria, F. Moschini, G. Fabbri, A. D'Abramo, E. Sacco, D. Cencelli, V. Orsolini De Notaristefani, F.
Copyright Year	2008
Description	Author affiliation: INFN and Department of Electronic Engineering ¿Rome III¿ University of Rome, Italy (Cencelli, V. Orsolini; De Notaristefani, F.) \|\| INFN and EDEMOM PhD school of Microeletronics, Roma III University of Rome, Italy (Bennati, P.; Fabbri, A.; D'Abramo, E.) \|\| INFN Roma1 and ENEA, Casaccia, Rome Italy (Scafe, R.) \|\| Department of Radiology, ¿Sapienza¿ University of Rome, Italy (De Vincentis, G.) \|\| INFN and the Department of Physics, University of Padua, Italy (Moschini, G.) \|\| INFN and the Department of Physics, University of Bologne, Italy (Lo Meo, S.; Lanconelli, N.; Navarria, F.) \|\| Italian Institute of Nuclear Physics (INFN) and the Department of Experimental Medicine, ¿Sapienza¿ University of Rome, viale R. Elena 272 00161 Rome Italy (Pani, R.; Pellegrini, R.; Cinti, M. N.; Ridolfi, S.) \|\| ISPESL and INFN, Roma 3 Italy (Sacco, D.)
Abstract	In this work we propose an analysis of a novel Low Energy (LE) parallel hole collimator for high resolution single photon emission tomography (SPET) applications. This prototype, realized jointly with Nuclear Fields, is a lead parallel hole collimator with 1.0 mm hexagonal hole, 18 mm length, 0.2 mm septa and 10x10 $cm^{2}$ of useful detection area. It has been planned to match the high spatial resolution performances of a compact gamma camera based on LaBr:Ce continuous scintillation crystal. The imaging performances of this prototype are compared with others two parallel collimators, for different dimensions and applications, and a tungsten pinhole collimator ones. All the collimators were tested with a compact scintillation gamma camera based on LaBr:Ce continuous crystal and multi anode photomultipler tube (MA-PMT) Hamamatsu H8500. The high intrinsic spatial resolution of this crystal enhances the response of collimators at short source-to-collimator distance (SCD) overcoming alignment problems with the collimator pattern. From our analysis the collimator prototype seems to be complementary with the use of pinhole one and when coupled to the compact LaBr:Ce gamma camera can allow a very attractive trade-off between spatial resolution, sensitivity and detection area for radionuclide molecular imaging applications.
Starting Page	3824
Ending Page	3828
File Size	11239109
Page Count	5
File Format	PDF
ISBN	9781424427147
ISSN	10957863
DOI	10.1109/NSSMIC.2008.4774115
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-19
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image resolution High-resolution imaging Optical imaging Cameras Prototypes Spatial resolution Energy resolution Optical collimators Single photon emission computed tomography Solid scintillation detectors
Content Type	Text
Resource Type	Article

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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
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