X-ray detection with a scintillating YAP-window hybrid photomultiplier tube

Author

d´Ambrosio, C. ; De Notaristefani, F. ; Leutz, H. ; Puertols, D. ; Rosso, E.

Author_Institution

EP Div., CERN, Geneva, Switzerland

Volume

47

Issue

1

fYear

2000

fDate

2/1/2000 12:00:00 AM

Firstpage

6

Lastpage

12

Abstract

A YAP(YAlO₃:Ce)-scintillating window, coated on its inner surface with an S20-photocathode, seals a cross-focusing hybrid photomultiplier tube (HPMT) equipped with a small p-i-n anode of 2-mm diameter. This new radiation detector separates X-ray lines down to about 2-keV peak energy from the HPMT noise. Its detection efficiency for high gamma energies depends on the YAP-window thickness and amounts to about 18% attenuation at 400-keV energy in the present version. Competitive radiation detectors like Si photodiodes and Si drift chambers are discussed and compared to our prototype, with particular attention given to their energy resolution and noise performance, which limits their active area considerably

Keywords

X-ray detection; drift chambers; electron device noise; photocathodes; photodiodes; photomultipliers; silicon radiation detectors; solid scintillation detectors; 2 keV; 400 keV; S20-photocathode; Si; Si drift chamber; Si photodiodes; X-ray detection; YAP-scintillating window; YAlO₃:Ce; detection efficiency; energy resolution; hybrid photomultiplier tube; noise; p-i-n anode; scintillating YAP-window; Anodes; Attenuation; Gamma ray detection; Gamma ray detectors; PIN photodiodes; Photomultipliers; Prototypes; Radiation detectors; Seals; X-ray detection;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.826891

Filename

826891