DocumentCode :
1139336
Title :
Comparative Measurements on 
and 
Scintillators Coupled to PSPMT
and Scintillators Coupled to PSPMTAuthor :
Lee, Wonho ; Wehe, David K. ; Kim, Byoungjik
Author_Institution :
Radiat. Meas. & Imaging Group, Univ. of Michigan, Ann Arbor, MI, USA
Volume :
52
Issue :
4
fYear :
2005
Firstpage :
1119
Lastpage :
1122
Abstract :
Lanthanum halide detector energy resolution measurements at 662 keV for a 
crystal (3.67%) and a 6 
6 array of 
crystals (4.65%) coupled to a 5 
diameter Hamamatsu PSPMT are compared to measurements on arrays of NaI (7.37%) and BGO (16.07%). The uncorrected energy resolution using the entire array is poor (13%) due to weaker responses from the edge pixels, but is improved to 5.85% with a position dependent gain correction. Spectra are presented from a well-collimated source focused upon a small area of the detector, as well as uncollimated 2D flood-fields.
crystal (3.67%) and a 6 6 array of crystals (4.65%) coupled to a 5 diameter Hamamatsu PSPMT are compared to measurements on arrays of NaI (7.37%) and BGO (16.07%). The uncorrected energy resolution using the entire array is poor (13%) due to weaker responses from the edge pixels, but is improved to 5.85% with a position dependent gain correction. Spectra are presented from a well-collimated source focused upon a small area of the detector, as well as uncollimated 2D flood-fields.Keywords :
gamma-ray detection; lanthanum compounds; position sensitive particle detectors; solid scintillation detectors; 5 in; 662 keV; BGO detector comparison; LaBr3(Ce) scintillators; LaCl3(Ce) scintillators; NaI detector comparison; edge pixels; energy resolution measurements; gamma ray cameras; lanthanum halide detector; Crystals; Degradation; Detectors; Energy measurement; Energy resolution; Helium; Lanthanum; Linearity; Sensor arrays; Timing; lanthanum halide;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.2005.852696
Filename :
1495815
Link To Document :
