THE EFFECT OF COLLIMATION ON THE RESOLUTION AND PEAK-TO-TOTAL RATIO OF A NaI(T1) CRYSTAL
Technical Report
·
OSTI ID:4786630
Restriction of the incident radiation to a small area of a NaI(T1l) scintillation crystal improves the resolution and studied with a series of tapered lead collimators, all with the same apex but with differing apertures, in front of a 4-in. by 4-in.-diameter NaI(T1) scintillation crystal. Sources of gamma rays with energies from 0.28 to 2.76 Mev are located at the apex of the taper. Optimum resolution of about 25 percent greater than broad-beam resolution is obtained with a 0.25-in. diameter aperture. Anomalous effects are observed with a smaller opening. (auth)
- Research Organization:
- Naval Radiological Defense Lab., San Francisco
- NSA Number:
- NSA-16-013305
- OSTI ID:
- 4786630
- Report Number(s):
- USNRDL-TR-543
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
Composite photon-electron spectrometer from NaI(T1) crystals and plastic scintillators
High Resolution Detector Modules Based on NaI(T1) Arrays for Small Animal Imaging
NaI (T1) scintillation with counter with vacuum photodiode
Journal Article
·
Sat Jul 01 00:00:00 EDT 1995
· Instruments and Experimental Techniques
·
OSTI ID:133127
High Resolution Detector Modules Based on NaI(T1) Arrays for Small Animal Imaging
Conference
·
Wed Oct 31 23:00:00 EST 2001
·
OSTI ID:788706
NaI (T1) scintillation with counter with vacuum photodiode
Journal Article
·
Mon Sep 01 00:00:00 EDT 1986
· Instrum. Exp. Tech. (Engl. Transl.); (United States)
·
OSTI ID:6863214