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Irradiated silicon detectors operated at cryogenic temperatures: The Lazarus effect

  • V. Granata
  • , W. H. Bell
  • , P. Berglund
  • , W. De Boer
  • , E. Borchi
  • , K. Borer
  • , M. Bruzzi
  • , S. Buontempo
  • , L. Casagrande
  • , V. Cindro
  • , S. Chapuy
  • , N. D'Ambrosio
  • , C. Da Viá
  • , S. Devine
  • , B. Dezillie
  • , Z. Dimcovski
  • , V. Eremin
  • , A. Esposito
  • , U. Gambardella
  • , E. Grigoriev
  • E. Heijne, S. Heising, S. Janos, L. Jungermann, I. Konorov, Z. Li, C. Lourenço, M. Mikuz, T. O. Niinikoski, V. O'Shea, S. Pagano, V. G. Palmieri, S. Paul, S. Pirollo, K. Pretzl, G. Ruggiero, E. Sarnelli, K. Smith, P. Sonderegger, M. Valtonen, E. Verbitskaya, S. Watts, M. Zavrtanik
  • INFN Sezione di Napoli
  • Instiuto di Cibernetica E. Caianiello
  • Brunel University London
  • University of Glasgow
  • Helsinki University of Technology
  • University of Karlsruhe
  • University of Florence
  • University of Bern
  • Laboratório de Instrumentação
  • Univ. of Ljubljana
  • University of Geneva
  • Technical University of Munich
  • Brookhaven National Laboratory
  • The Russian Academy of Sciences
  • Electrotechnical Laboratory
  • INFN, Laboratori Nazionali Di Frascati
  • European Organization for Nuclear Research

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

An increasing interest in the behaviour of silicon detectors at cryogenic temperatures has been awakened by the discovery of the so-called Lazarus effect, namely the recovery of charge collection efficiency (CCE) by means of cryogenic cooling. We measured the CCEs of three single diodes previously irradiated with different neutron fluences. The current-voltage characteristic were measured at 300 and 77K, showing that the low-temperature operation considerably decreases the steady-state current. This is also the case when a forward voltage bias is applied, which then becomes a suitable option. At 77 K, in the case of samples irradiated with 5 × 1014 neutrons cm-2, the CCE is completely recovered. A third sample irradiated with 2 × 1015 neutrons cm-2 shows a 60% CCE at 250 V forward bias.

Original languageEnglish
Pages (from-to)811-815
Number of pages5
JournalPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume80
Issue number4
DOIs
StatePublished - Apr 2000
EventInternational Workshop on Semiconducting and Superconducting Materials - Torino, Italy
Duration: 1 Feb 19991 Feb 1999

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