Thin scintillators and position sensitive photomultiplier tubes for hard X-ray imaging in space
Conference
·
OSTI ID:512978
- Naval Research Lab., Washington, DC (United States); and others
Monolithic CsI(Tl) scintillators coupled to a position sensitive photomultiplier tube (PSPMT) have been tested for imaging and environmental performance necessary for hard X-ray astrophysics missions. Using a crossed-wire PSPMT and individual anode-wire readout, spatial resolution of 1-2 mm rms at 60 keV over the entire photo-cathode imaging surface are 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. We have also tested pixellated scintillators and find equivalent spatial resolution but with energy resolution which is unacceptable for our applications.
- OSTI ID:
- 512978
- Report Number(s):
- CONF-961123--
- Country of Publication:
- United States
- Language:
- English
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