Development of cryogenic Si detectors by CERN RD39 Collaboration for ultra radiation hardness in SLHC environment

Zheng Li, M. Abreu, P. Anbinderis, T. Anbinderis, N. D'Ambrosio, W. de Boer, E. Borchi, K. Borer, M. Bruzzi, S. Buontempo, W. Chen, V. Cindro, A. Dierlamm, V. Eremin, E. Gaubas, V. Gorbatenko, E. Grigoriev, F. Hauler, E. Heijne, S. HeisingO. Hempel, R. Herzog, J. Härkönen, I. Ilyashenko, S. Janos, L. Jungermann, V. Kalesinskas, J. Kapturauskas, R. Laiho, P. Luukka, I. Mandic, Rita De Masi, D. Menichelli, M. Mikuz, O. Militaru, T. O. Niinikosky, V. O'Shea, S. Pagano, S. Paul, K. Piotrzkowski, K. Pretzl, P. Rato Mendes, X. Rouby, G. Ruggiero, K. Smith, P. Sonderegger, P. Sousa, E. Tuominen, E. Tuovinen, E. Verbitskaya, J. Vaitkus, E. Wobst, M. Zavrtanik

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)

Abstract

There are two key approaches in our CERN RD 39 Collaboration efforts to obtain ultra-radiation-hard Si detectors: (1) use of the charge/current injection to manipulate the detector internal electric field in such a way that it can be depleted at a modest bias voltage at cryogenic temperature range (≤150 K), and (2) freezing out of the trapping centers that affects the CCE at cryogenic temperatures lower than that of the liquid nitrogen (LN2) temperature. In our first approach, we have developed the advanced radiation hard detectors using charge or current injection, the current injected diodes (CID). In a CID, the electric field is controlled by injected current, which is limited by the space charge, yielding a nearly uniform electric field in the detector, independent of the radiation fluence. In our second approach, we have developed models of radiation-induced trapping levels and the physics of their freezing out at cryogenic temperatures.

Original languageEnglish
Pages (from-to)305-310
Number of pages6
JournalNuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume572
Issue number1 SPEC. ISS.
DOIs
Publication statusPublished - 1 Mar 2007
MoE publication typeA1 Journal article-refereed

Funding

The work was supported in part by the US Department of Energy: contract No: DE-AC02-98ch10886.

Keywords

  • CCE
  • Current injection
  • Si cryogenic detectors
  • Trapping freeze-out

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