Title :
Performance of Single Photon Tomographic System - GAMMATOM-1
Author :
Cho, Z.H. ; Yi, W. ; Jung, K.J. ; Lee, B.U. ; Min, H.B. ; Song, H.B.
Author_Institution :
Department of Electrical Science Korea Advanced Institute of Science, Seoul, Korea
Abstract :
An efficiency optimized single photon tomographic system, GAMMATOM-1, is developed and its performance is studied. The system consists of 36 NaI(Tl) crystals of 2cm (diameter) × 3.8cm (length) arranged in a circular form with four banks or arcs (each arc with 9 NaI(Tl) crystals). Resolution of 7mm fwhm is obtained with a 16cm diameter resolution-phantom of 99mTc. Sensitivity of the system has also been measured and obtained 10K ~ 15K (counts/sec) / (¿Ci/cc) with a 20cm diameter uniform circular phantom of 99mTc. System design details and performance are reported.
Keywords :
Cameras; Collimators; Gamma ray detection; Gamma ray detectors; Imaging phantoms; Object detection; Sampling methods; Sensor arrays; Single photon emission computed tomography; Solid scintillation detectors;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1982.4335892
