Upgraded Cherenkov time-of-flight detector for the AFP project

被引：2

作者：

Nozka, Libor ^{[1
]}

Avoni, Giulio ^{[2
,3
]}

Banas, Elzbieta ^{[4
]}

Brandt, Andrew ^{[5
]}

Cerny, Karel ^{[1
]}

Davis, Paul M. ^{[6
]}

Pinto, Serge Duarte ^{[7
]}

Georgiev, Vjaceslav ^{[8
]}

Hrabovsky, Miroslav ^{[1
]}

Komarek, Tomas ^{[1
]}

Korcyl, Krzysztof

Lopez-Paz, Ivan ^{[9
]}

Milovanovic, Marko ^{[10
]}

Mladenovic, Goran ^{[11
]}

Orlov, Dmitry A.

Rijssenbeek, Michael ^{[12
]}

Schovanek, Petr ^{[13
]}

Sykora, Tomas

Trzebinski, Maciej

Urbasek, Vladimir ^{[13
]}

Zich, Jan ^{[8
]}

机构：

[1] Palacky Univ, Joint Lab Opt Palacky Univ & Inst Phys AS CR, Fac Sci, 17 Listopadu 12, Olomouc 77146, Czech Republic

[2] INFN Bologna, Viale C Berti Pichat 6-2, IT-40127 Bologna, Italy

[3] Univ Bologna, Dipartimento Fis, Viale C Berti Pichat 6-2, IT-40127 Bologna, Italy

[4] Polish Acad Sci, Inst Nucl Phys, Krakow, Poland

[5] Univ Texas Arlington, Dept Phys, Box 19059, Arlington, TX 76019 USA

[6] Univ Alberta, Ctr Particle Phys, Dept Phys, Edmonton, AB T6G 2G7, Canada

[7] Photonis Def Inc, 1000 New Holland Ave, Lancaster, PA 17601 USA

[8] Univ West Bohemia, Dept Appl Elect & Telecommun, Univ 26, Plzen 30100, Czech Republic

[9] Barcelona Inst Sci & Technol BIST, Inst Fis Altes Energies IFAE, Campus UAB, Bellaterra 08193, Barcelona, Spain

[10] DESY, Inst Particle & Nucl Phys, Fac Math & Phys, Platanenallee 6, D-15738 Zeuthen, Germany

[11] Univ Belgrade, Fac Mech Engn, Kraljice Marije 16, Belgrade, Serbia

[12] SUNY Stony Brook, Dept Phys & Astron, Nicolls Rd, Stony Brook, NY 11794 USA

[13] Acad Sci Czech, Inst Phys, Slovance 2, Prague, Czech Republic

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 03期

关键词：

OPTICAL PART; RESOLUTION;

D O I：

10.1364/OE.480624

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the results of our performance studies of the upgraded Cherenkov time-of-flight (ToF) detector for the AFP (ATLAS Forward Proton) project. The latest version consists of solid L-shaped fused silica bars, new customized ALD-coated micro-channel plate photomultipliers (MCP-PMTs) miniPlanacon XPM85112-S-R2D2 with an extended lifetime which operate at low gains (order of 103), and an updated construction. The improvements were aimed to increase the efficiency, the lifetime as well as the radiation hardness of the detector which has been designed to operate in high radiation areas (above 400 kGy/year). The detector was finally tested at the CERN-SPS test-beam facility (120 GeV pi+ particles) in August 2021 prior to its installation at the Large Hadron Collider (LHC) at CERN. Measurements proved the detector kept its inner timing resolution of 20 ps despite the rather low gain of its photodetector and reduced optical throughput caused by inevitable changes in the detector geometry. Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

引用

页码：3998 / 4014

页数：17

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