Commissioning of the DELPHI Pixel Detector

被引：7

作者：

Becks, KH

Brunet, JM

Caccia, M

Clemens, JC

Cohen-Solal, M

Courty, B

de Boer, W

Delpierre, P

Demaria, N

Drees, J

Elsing, M

Gerlach, P

Glitza, KW

Gregor, IM

Guglielmi, G

Hartmann, F

Heising, S

Heuser, JM

Jaeger, JJ

Kaiser, M

Kersten, S

Knoblauch, D

Leb, H

Ledroit, F

Maehlum, G

Meroni, C

Monig, K

Mouthuy, T

Raymond, M

Roos, L

Sauvage, D

Troncon, C

Tristram, G

Turlot, JP

Uberschar, B

Vegni, G

Wielers, M

机构：

[1] Univ Karlsruhe, Inst Expt Kernphys, D-76121 Karlsruhe, Germany

[2] Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany

[3] Coll France, Phys Corpusculaire Lab, CNRS, IN2P3, F-75231 Paris, France

[4] Univ Milan, Dipartimento Fis, Milan, Italy

[5] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[6] CPPM, CNRS, IN2P3, Marseille, France

[7] Univ Oxford, Dept Phys, Oxford OX1 2JD, England

[8] CERN, CH-1211 Geneva 23, Switzerland

[9] Univ Grenoble 1, CNRS, IN2P3, ISN, Grenoble, France

[10] Univ Paris 06, CNRS, IN2P3, LPNHE, Paris, France

[11] Univ Paris 07, CNRS, IN2P3, LPNHE, Paris, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1998年 / 418卷 / 01期

关键词：

D O I：

10.1016/S0168-9002(98)00712-8

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The DELPHI Vertex Detector has been upgraded for LEP200 with 2 layers of pixel detectors and 2 layers of ministrips as endcaps, thus covering the polar angular range between 10 degrees and 21 degrees and allowing for standalone pattern recognition. During the 1995/96 shutdown the first 95 modules were installed and the installation was completed in May 97 with all 152 modules. Production yields and failures during the assembly will be presented. The detector operated at a threshold of around 9000 electrons resulting in a number of noisy pixels at the 10(-3) level. After masking these hot pixels in the readout, the remaining number of random hits per event is at the 10(-6) level. The observed resolution of about 100 mu m is close to the expectation for binary readout. The track reconstruction efficiency increased by more than 100% in the central part of the forward tracker. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：15 / 21

页数：7

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