Irradiation tests of photodiodes for the ATLAS SCT readout

Two kinds of photodiodes have been investigated for the ATLAS SCT readout. We present in this paper the results of irradiating bulk and epitaxial Si PIN diodes with 1 MeV-equivalent neutrons and 24 GeV protons. The devices were biased during some of the tests. They were exposed to a fluence of aroun...

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Published inNuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 424; no. 2; pp. 483 - 494
Main Authors Dowell, J.D, Homer, R.J, Kenyon, I.R, Mahout, G, Oglesby, S.J, Shaylor, H.R, Wilson, J.A, Nickerson, R.B, Wastie, R, Weidberg, A.R
Format Journal Article
LanguageEnglish
Published Elsevier B.V 21.03.1999
Subjects
ATLAS Semi Conductor Tracker
Bulk and epitaxial PIN diodes
Dark current
LHC
Neutron (1 MeV) and proton (24 GeV) irradiation
Responsivity
Rise and fall time
Neutron (1 MeV) and proton (24 GeV) irradiation
Rise and fall time
Bulk and epitaxial PIN diodes
Responsivity
LHC
Dark current
ATLAS Semi Conductor Tracker
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Summary:Two kinds of photodiodes have been investigated for the ATLAS SCT readout. We present in this paper the results of irradiating bulk and epitaxial Si PIN diodes with 1 MeV-equivalent neutrons and 24 GeV protons. The devices were biased during some of the tests. They were exposed to a fluence of around 2.5 × 10 14 n cm −2 followed by a fluence of approximately 2.5×10 14 p cm −2.
ISSN:0168-9002
1872-9576
DOI:10.1016/S0168-9002(98)01415-6