Radiation damage studies with STAR silicon drift detectors

Author

Bellwied, R. ; Beuttenmueller, R. ; Chen, W. ; Dezillie, B. ; Eremin, V. ; Elliot, D. ; Hoffmann, G.W. ; Huang, W. ; Humanic, T. ; Ilyashenko, I. ; Kotov, I.V. ; Kuczewski, P. ; Leonhard, W. ; Li, Z. ; Lynn, D. ; Pandey, S.U. ; Schambach, J. ; Soja, R. ;

Author_Institution

Wayne State Univ., Detroit, MI, USA

Volume

1

fYear

1999

fDate

1999

Firstpage

396

Abstract

Large (6.3×6.3 cm²) linear silicon drift detectors were developed for use in the SVT, the inner tracking detector of the STAR experiment at the RHIC Collider. The concern of this paper is to estimate the effects of neutron and proton radiation damage to these devices and associated electronics. Detectors and their associated electronics were irradiated with 10¹¹-10¹²/cm², 1 MeV equivalent neutrons and 10¹⁰-10¹²/cm², 24 GeV protons. I-V and C-V characteristics of diode test structures were used to determine depletion voltages, lifetimes, and reverse bias values. Measurements of the voltage and drift linearity with laser injection show the effects of irradiation on the detector performance. Measurements of noise levels show the effects of irradiation on the front-end electronics

Keywords

drift chambers; neutron detection; neutron effects; nuclear electronics; proton detection; proton effects; silicon radiation detectors; 1 MeV; 24 GeV; C-V characteristics; I-V characteristics; STAR Si drift detectors; Si; diode test structures; electronics; front-end electronics; inner tracking detector; neutron damage; proton damage; radiation damage; reverse bias values; Capacitance-voltage characteristics; Diodes; Laser noise; Life testing; Linearity; Neutrons; Protons; Radiation detectors; Silicon radiation detectors; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1999. Conference Record. 1999 IEEE

Conference_Location

Seattle, WA

ISSN

1082-3654

Print_ISBN

0-7803-5696-9

Type

conf

DOI

10.1109/NSSMIC.1999.842516

Filename

842516