DocumentCode
3331065
Title
Efficient algorithm for modeling keel-edge pinhole response
Author
Jansen, Floris P. ; Qian, Hua ; Beque, Dirk
Author_Institution
GE Global Res., Niskayuna, NY, USA
fYear
2009
fDate
Oct. 24 2009-Nov. 1 2009
Firstpage
3877
Lastpage
3881
Abstract
We describe an efficient method for computing the system response (sensitivity and point spread function) of a conventional gamma camera with multiple keel-edge pinhole collimators, taking into account geometric acceptance effects at the collimator as well as detector response. An efficient way of storing the resulting system matrix permits us to achieve very fast iterative reconstruction with reasonable memory requirements.
Keywords
collimators; computerised tomography; image reconstruction; position sensitive particle detectors; efficient algorithm; gamma camera; geometric acceptance effects; iterative reconstruction; modeling keel-edge pinhole response; multiple keel-edge pinhole collimators; point spread function; sensitivity profile; Cameras; Collimators; Image edge detection; Image reconstruction; Image resolution; Nuclear and plasma sciences; Radiation detectors; Shape; Solid modeling; Telephony;
fLanguage
English
Publisher
ieee
Conference_Titel
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location
Orlando, FL
ISSN
1095-7863
Print_ISBN
978-1-4244-3961-4
Electronic_ISBN
1095-7863
Type
conf
DOI
10.1109/NSSMIC.2009.5401920
Filename
5401920
Link To Document