publication . Article . 2012

Investigation of the radiation hardness of GaAs sensors in an electron beam

V. A. Novikov; Andrey Sapronov; M. Bergholz; M. Ohlerich; W. Lange; K. Afanaciev; J. Gajewski; Petty Bernitt; S. Kulis; W. Lohmann; ...
Open Access English
  • Published: 22 Nov 2012
Abstract
A compact and finely grained sandwich calorimeter is designed to instrument the very forward region of a detector at a future e+e- collider. The calorimeter will be exposed to low energy e+e - pairs originating from beamstrahlung, resulting in absorbed doses of about one MGy per year. GaAs pad sensors interleaved with tungsten absorber plates are considered as an option for this calorimeter. Several Cr-doped GaAs sensor prototypes were produced and irradiated with 8.5-10 MeV electrons up to a dose of 1.5 MGy. The sensor performance was measured as a function of the absorbed dose.
Subjects
arXiv: Physics::Instrumentation and DetectorsHigh Energy Physics::ExperimentPhysics::Medical PhysicsPhysics::Accelerator Physics
free text keywords: детекторы, калориметры, арсенид галлия, Instrumentation, Mathematical Physics, Detectors and Experimental Techniques, Advanced infrastructures for detector R&D [9], Highly Granular Calorimetry [9.5], ddc:610, Absorbed dose, Optoelectronics, business.industry, business, Cathode ray, Electron, Calorimeter, Radiation hardening, Irradiation, Materials science, Collider, law.invention, law, Tungsten, chemistry.chemical_element, chemistry
Related Organizations
Funded by
EC| AIDA
Project
AIDA
Advanced European Infrastructures for Detectors at Accelerators
  • Funder: European Commission (EC)
  • Project Code: 262025
  • Funding stream: FP7 | SP4 | INFRA
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