Radiation hardness and lifetime studies of photodiodes for the optical readout of the ATLAS semiconductor tracker

Journal article

A large sample (96) of epitaxial Si PIN photodiodes has been irradiated by approximately 1 MeV neutrons and 24 GeV protons with fluences up to 1015 equivalent 1 MeV neutrons cm-2 in order to test their suitability for use in the optical readout of the ATLAS semiconductor tracker and pixel detector at the CERN Large Hadron Collider. After an initial reduction of 30% the responsivity remains constant up to the maximum fluence. The rise and fall times are not significantly affected and remain be...

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Authors: Charlton, D; Dowell, J; Homer, R; Jovanovic, P; Kenyon, I

• Publication status: Published
• Publisher: Elsevier
• Journal: NUCLEAR INSTRUMENTS and METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
• Volume: 456
• Issue: 3
• Pages: 300-309
• Publication date: 2001-01-01
• DOI: 10.1016/S0168-9002(00)00666-5
• ISSN: 0168-9002
• Language: English
• Keywords: responsivity; lifetime; ATLAS semiconductor tracker; neutron (1MeV) and proton (24 GeV) irradiation; epitaxial SiPIN photodiodes; ageing; dark current; ATLAS pixel detector; LHC