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

Volume

2

fYear

1996

Firstpage

1140

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-3534-1

Type

conf

DOI

10.1109/NSSMIC.1996.591597

Filename

591597