NDLI: Fast polycrystalline-CdTe detectors for LHC luminosity measurements

Content Provider	IEEE Xplore Digital Library
Author	Rossa, E. Gschwendtner, E. Placidi, M. Schmickler, H. Brambilla, A. Mongellaz, F. Verger, L. Cindro, V. Mikuz, M. Moritz, P.
Copyright Year	2002
Description	Author affiliation: CERN, Geneva, Switzerland (Rossa, E.; Gschwendtner, E.; Placidi, M.; Schmickler, H.)
Abstract	Beam diagnostics in future high-energy accelerators will require long lived instrumentation in highly hostile radiation environments. A research program aiming at individuating new solutions and testing them under extreme operational conditions has been launched at CERN in the framework of developments for LHC instrumentation. Its outcome might be used in future accelerator projects, in industry or in physics applications. The detectors which will be adopted for the LHC luminosity monitoring and optimization will be installed close to or inside copper absorbers specifically designed for radiation protection of the accelerator magnetic elements in the interaction regions. These detectors will have to withstand extreme radiation levels and their long-term operation has to be assured without requiring human intervention. Polycrystalline-CdTe detectors have demonstrated their radiation hardness against extreme doses of X-ray exposure in the LEP collider and are considered as good candidates for LHC luminosity monitoring applications. After recalling a series of measurements obtained on CdTe samples exposed to different sources to study their time response and sensitivity we present results on their performance after irradiation at doses of 10/sup 16/ neutrons/cm/sup 2/. This is a preliminary step in the program intended to test the samples during and after irradiation up to levels of 10/sup 18/ neutrons/cm/sup 2/ and 10/sup 16/ protons/cm/sup 2/ comparable to those anticipated at the detector locations over ten years of operation of the accelerator.
Starting Page	2439
Ending Page	2442
File Size	883916
Page Count	4
File Format	PDF
ISBN	0780373243
ISSN	10823654
DOI	10.1109/NSSMIC.2001.1009312
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-11-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Large Hadron Collider Radiation detectors Instruments Testing Radiation monitoring Neutrons Particle beams Physics Design optimization Copper
Content Type	Text
Resource Type	Article

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