Thin scintillators and position sensitive photomultiplier tubes for hard X-ray imaging in space

Author

Kroeger, R.A. ; Grove, J.E. ; Inderhees, S.E. ; Johnson, W.N. ; Kinzer, R.L. ; Kurfess, J.D. ; Phlips, B.P.

Author_Institution

Naval Res. Lab., Washington, DC, USA

Volume

1

fYear

1996

fDate

2-9 Nov 1996

Firstpage

242

Abstract

Monolithic CsI(TI) 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, a spatial 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 an energy resolution close to what is expected from CsI(TI) scintillators. We have also tested pixellated scintillators and find an equivalent spatial resolution but with an energy resolution which is unacceptable for our applications

Keywords

X-ray astronomy; X-ray detection; astronomical instruments; photomultipliers; position sensitive particle detectors; solid scintillation detectors; 1 to 2 mm; 60 keV; CsI:Tl; anode-wire readout; energy resolution; hard X-ray imaging; monolithic CsI(TI) scintillators; pixellated scintillators; position sensitive photomultiplier tube; spatial resolution; Anodes; Apertures; Cathodes; Energy resolution; Image resolution; Photomultipliers; Spatial resolution; Testing; Wires; X-ray imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE

Conference_Location

Anaheim, CA

ISSN

1082-3654

Print_ISBN

0-7803-3534-1

Type

conf

DOI

10.1109/NSSMIC.1996.590950

Filename

590950