Title :
Development of a high resolution beta camera for a direct measurement of positron distribution on brain surface
Author :
Yamamoto, S. ; Seki, C. ; Kashikura, K. ; Fujita, H. ; Ban, R. ; Kanno, I.
Author_Institution :
Kobe City Coll. of Technol., Japan
Abstract :
We have developed and tested a high resolution beta camera far a direct measurement of positron distribution on brain surface of animals. The beta camera consists of a thin CaF2(Eu) scintillator, a tapered fiber optics plate (taper fiber) and a position sensitive photomultiplier tube (PSPMT). The taper fiber is the key component of the camera. We have developed two types of beta cameras. One is 20 mm diameter field of view camera for imaging brain surface of cats. The other is 10 mm diameter camera for that of rats. Spatial resolutions of beta camera for cats and rats were 0.8 mm FWHM and 0.5 mm FWHM, respectively. We confirmed that developed beta cameras may overcome the limitation of the spatial resolution of the positron emission tomography (PET)
Keywords :
beta-ray detection; biomedical equipment; biomedical imaging; biomedical measurement; brain; optical fibre telemetry; positron emission tomography; solid scintillation detectors; 10 mm; 20 mm; animals; brain surface; cats; direct measurement; high resolution beta camera; position sensitive photomultiplier tube; positron distribution; positron emission tomography; rats; tapered fiber optics plate; thin CaF2(Eu) scintillator; Animals; Brain; Cameras; Cats; Optical fiber testing; Optical fibers; Photomultipliers; Positron emission tomography; Rats; Spatial resolution;
Conference_Titel :
Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE
Print_ISBN :
0-7803-3534-1
DOI :
10.1109/NSSMIC.1996.591597
