The "long laboratory',showing one of the position senstive gamma-ray detectors known as Anger Cameras
T h e ` l o n g l a b o r a t o r y', s h o w i n g o n e o f t h e p o s i t i o n s e n s t i v e g a m m a - r a y d e t e c t o r s k n o w n a s ` A n g e r C a m e r a s
■Close-up of one of the Anger cameras.The individual photomultiplier tubes can clearly be seen
Close-up of one of the Anger cameras. The individual photomultiplier tubes can clearly be seen
AN1 1 AN12 Coin Analogue 2 Interface X1 X2 Trigger PC ADC Multiplexer Veto
15 10 0 5 15 61o 10 6 0 15 10 P[001][mrad] 1510 5 0 10 15 15 10 5 0 5 10 15 p [010][mrad] P [010][mrad] Combined perspective and contour plots of the measurement of two-dimensional angular correlation of annihilation radiation in gallium arsenide exhibiting no positron trapping in defects (Tanigawa et al.1995).The upper panel shows the contour map of the momentum distribution p in the (100) plane
Combined perspective and contour plots of the measurement of two-dimensional angular correlation of annihilation radiation in gallium arsenide exhibiting no positron trapping in defects (Tanigawa et al. 1995). The upper panel shows the contour map of the momentum distribution p in the (100) plane
(020) (220) (020) (220) 0.04 0.02 0.60 0.96 (000) (200) (000) (200) Comparison of the two-dimensional angular correlation of annihilation radiation contour plot of the momentum distribution in the(001)plane of gallium arsenide obtained by ab-initio calculations (left panel)by Saito et al.(1991)with an experimental spectrum (right panel).The right panel represents a magnified part of the contour plot of Fig
Comparison of the two-dimensional angular correlation of annihilation radiation contour plot of the momentum distribution in the (001) plane of gallium arsenide obtained by ab-initio calculations (left panel) by Saito et al. (1991) with an experimental spectrum (right panel). The right panel represents a magnified part of the contour plot of Fig