Ra. Kroeger et al., THIN SCINTILLATORS AND POSITION-SENSITIVE PHOTOMULTIPLIER TUBES FOR HARD X-RAY-IMAGING IN-SPACE, IEEE transactions on nuclear science, 44(3), 1997, pp. 881-884
Monolithic and segmented CsI(TI) scintillators coupled to a position s
ensitive photomultiplier tube (PSPMT) have been tested for imaging and
environmental performance necessary for hard X-ray astrophysics missi
ons. Using a crossed-wire PSPMT and individual anode-wire readout, spa
tial resolution of 1-2 mm rms at 60 keV over the entire photo-cathode
imaging surface is obtained out to near the edges of the scintillator.
A PSPMT mapping correction was used to obtain energy resolution close
to what is expected from CsI(Tl) scintillators.