Szczegóły publikacji

Opis bibliograficzny

Acceptance tests and criteria of the ATLAS Transition Radiation Tracker / P. Cwetanski [et al.], T. KOWALSKI [et al.], B. MINDUR, V. A. Mitsou, [et al.] // IEEE Transactions on Nuclear Science ; ISSN 0018-9499. — 2005 — vol. 52 no. 6 Pt. 2, s. 2911–2916. — Bibliogr. s. 2916, Abstr.

Autorzy (101)

Słowa kluczowe

acceptance criteriaquality controlstraw tubestransition radiationtrackinggas detectors

Dane bibliometryczne

ID BaDAP27909
Data dodania do BaDAP2006-06-20
Tekst źródłowyURL
DOI10.1109/TNS.2005.862799
Rok publikacji2005
Typ publikacjiartykuł w czasopiśmie
Otwarty dostęptak
Czasopismo/seriaIEEE Transactions on Nuclear Science

Abstract

The Transition Radiation Tracker (TRT) sits at the outermost part of the ATLAS Inner Detector, encasing the Pixel Detector and the Semi-Conductor Tracker (SCT). The TRT combines charged particle track reconstruction with electron identification capability. This is achieved by layers of xenonfilled straw tubes with periodic radiator foils or fibers providing TR photon emission. The design and choice of materials have been optimized to cope with the harsh operating conditions at the LHC, which are expected to lead to an accumulated radiation dose of 10 Mrad and a neutron fluence of up to 2 . 10(14) n/cm(2) after ten years of operation. The TRT comprises a barrel containing 52 000 axial straws and two end-cap parts with 320 000 radial straws. The total of 420 000 electronic channels (two channels per barrel straw) allows continuous tracking with many projective measurements (more than 30 straw hits per track). The assembly of the barrel modules in the US has recently been completed, while the end-cap wheel construction in Russia has reached the 50% mark. After testing at the production sites and shipment to CERN, all modules and wheels undergo a series of quality and conformity measurements. These acceptance tests survey dimensions, wire tension, gas-tightness, high-voltage stability and gas-gain uniformity along each individual straw. This paper gives details on the acceptance criteria and measurement methods. An overview of the most important results obtained to-date is also given.

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