N. Dogan et Dk. Wehe, EFFICIENCY AND ANGULAR RESOLUTION CALCULATIONS FOR A PROTOTYPE MULTIPLE COMPTON SCATTER CAMERA, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 345(2), 1994, pp. 296-302
Monte Carlo simulations were performed to optimize the layer thickness
of a Compton camera which utilizes multiple Compton scatterings. The
optimum layer thickness was found to be less than 0.5 mm for 150 keV,
2 mm for 511 keV gamma rays and approximately 5 mm for 1000 keV gamma
rays. The efficiencies of two multiple Compton scatter cameras which c
onsist of a 20 layer stack of either 1 mm or 4 mm thick Si strip detec
tors surrounded by a 2 cm thick CsI(Tl) side counter are presented for
150-1000 keV gamma rays. The expected angular resolution of the propo
sed design (1 mm thick, 20 layer Si) is presented for different assume
d noise levels over the energy range 150-1000 keV.