Radiation damage studies with star silicon drift detectors

J. Takahashi, R. Bellwied, R. Beuttenmueller, W. Chen, B. Dezillie, V. Eremin, D. Elliot, G. W. Hoffmann, W. Huang, T. Humanic, I. Ilyashenko, I. V. Kotov, P. Kuczcwski, W. Leouhasdt, Z. Li, D. Lynn, S. U. Pandey, J. Schambach, R. Soja, E. SugarbakerL. J. Zhao, R. M. Willson

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Large (6,3 × 6. 3cm2) linear Silicon Drift Detectors were developed for use in the SVT, the inner tracking detector of the STAR experiment at the RHIC Collidcr. 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 10n - 1012/cm2, 1 MeV equivalent neutrons and 101° - 1012/on2, 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.

Original languageEnglish
Pages (from-to)903-907
Number of pages5
JournalIEEE Transactions on Nuclear Science
Volume47
DOIs
StatePublished - 2000
Externally publishedYes

Funding

wc arc gratcruul for lhc partial support given the us Dcpartinent of Encrgy through grant DE-AC02-98CH10886 and DE-FQ'2-92ER40713, RH'' R&D (STAR) the Robert A. Welch Foundation, and the National Science Foundation through grant PHY-9511850.

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