Recent results from the ATLAS SCT irradiation programme

Citation
Cm. Buttar et al., Recent results from the ATLAS SCT irradiation programme, NUCL INST A, 447(1-2), 2000, pp. 126-132
Citations number
11
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
447
Issue
1-2
Year of publication
2000
Pages
126 - 132
Database
ISI
SICI code
0168-9002(20000601)447:1-2<126:RRFTAS>2.0.ZU;2-5
Abstract
The irradiation facility at the CERN proton synchrotron, set up to irradiat e full-size prototypes of silicon microstrip detectors for the ATLAS semico nductor tracker, is described and measurements of the detector currents dur ing irradiation are reported, The detector dark currents can be described b y bulk radiation damage models demonstrating the radiation hardness of the detector design and allowing the current damage factor alpha and the accept or introduction term beta to be determined. Results from testbeam studies o f a module with an irradiated detector and binary readout in a magnetic fie ld and with the beam incident over a range of angles are reported. The hit efficiency and spatial resolution satisfy the requirements for the SCT prov ided the detector is operated at the full charge collection voltage. The Lo rentz angle was not found to be affected by the irradiation. (C) 2000 Elsev ier Science B.V. All rights reserved.