DEVELOPMENT OF A HIGH-RESOLUTION BETA-CAMERA FOR A DIRECT MEASUREMENTOF POSITRON DISTRIBUTION ON BRAIN SURFACE

Authors
YAMAMOTO S SEKI C KASHIKURA K FUJITA H MATSUDA T BAN R KANNO I
Citation
S. Yamamoto et al., DEVELOPMENT OF A HIGH-RESOLUTION BETA-CAMERA FOR A DIRECT MEASUREMENTOF POSITRON DISTRIBUTION ON BRAIN SURFACE, IEEE transactions on nuclear science, 44(4), 1997, pp. 1538-1542
Citations number
11
Categorie Soggetti
Nuclear Sciences & Tecnology","Engineering, Eletrical & Electronic
Journal title
IEEE transactions on nuclear science → ACNP
ISSN journal
00189499
Volume
44
Issue
4
Year of publication
1997
Part
1
Pages
1538 - 1542
Database
ISI
SICI code
0018-9499(1997)44:4<1538:DOAHBF>2.0.ZU;2-R
Abstract
We, have developed and tested a high resolution beta camera for a dire ct measurement of positron distribution on the brain surface of animal s. The beta camera consists of a thin CaF2(Eu) scintillator, a tapered fiber optic plate (tapered fiber) and a position sensitive photomulti plier tube (PSPMT). The tapered fiber is the key component of the came ra We have developed two different sizes of beta cameras. One is 20mm diameter field of view camera for imaging brain surface of cats. The o ther is 10mm diameter camera for that of rats. Spatial resolutions of the beta camera for cats and rats were 0.8mm FWHM and 0.5mm FWHM, resp ectively. We demonstrated that developed beta cameras may overcome the limitation of the spatial resolution of positron emission tomography (PET).