Characterization of 1800 Hamamatsu R7600-M4 PMTs for CMS HF Calorimeter upgrade

Akgun, U.; Funk, G.; Corso, J.; Jia, Zihang; Southwick, D.L.; Adams, Lori; Kingyon, Johnathan; Tiras, E.; Munhollon, T; Troendle, E; Bruecken, P.; Khristenko, V.; Onel, Y.

doi:10.1088/1748-0221/9/06/t06005

Cited by 9 publications

(10 citation statements)

References 16 publications

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“…The PM and SE mode characterization tests were done at the University of Iowa PMT test station [9,10]. All the tests were performed in light-tight boxes.…”

Section: Measurements and Resultsmentioning

confidence: 99%

Characterization of photomultiplier tubes in a novel operation mode for Secondary Emission Ionization Calorimetry

et al. 2016

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Hamamatsu single anode R7761 and multi-anode R5900-00-M16 Photomultiplier Tubes have been characterized for use in a Secondary Emission (SE) Ionization Calorimetry study. SE Ionization Calorimetry is a novel technique to measure electromagnetic shower particles in extreme radiation environments. The different operation modes used in these tests were developed by modifying the conventional PMT bias circuit. These modifications were simple changes to the arrangement of the voltage dividers of the baseboard circuits. The PMTs with modified bases, referred to as operating in SE mode, are used as an SE detector module in an SE calorimeter prototype, and placed between absorber materials (Fe, Cu, Pb, W, etc.). Here, the technical design of different operation modes, as well as the characterization measurements of both SE modes and the conventional PMT mode are reported.

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“…The PM and SE mode characterization tests were done at the University of Iowa PMT test station [9,10]. All the tests were performed in light-tight boxes.…”

Section: Measurements and Resultsmentioning

confidence: 99%

Characterization of photomultiplier tubes in a novel operation mode for Secondary Emission Ionization Calorimetry

et al. 2016

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“…Their characterisations at 800 V are high quantum efficiency (38 -39 %), high gain (> 10 6 ) , low dark current (< 1 nA) and fast timing (rise time < 2 ns, transit time < 25 ns and pulse width < 15 ns) [4]. They provide many improvements.…”

Section: Characterization Of Multi-anode Pmtsmentioning

confidence: 99%

Commissioning of CMS Forward Hadron Calorimeters with Upgraded Multi-anode PMTs and $u$TCA Readout

Tiras¹,

Bilki²,

Onel³

2017

Proceedings of 38th International Conference on High Energy Physics — PoS(ICHEP2016)

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“…New multi-anode PMTs have four anodes, thinner window (< 1 mm) and a metal envelope. Their characterisations at 800 V are high quantum efficiency (38 -39 %), high gain (> 10 6 ) , low dark current (< 1 nA) and fast timing (rise time < 2 ns, transit time < 25 ns and pulse width < 15 ns) [7].…”

Section: A Upgrade Pmtsmentioning

confidence: 99%

Commissioning of upgrade forward hadron calorimeters of CMS

Bilki

2016

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/R

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The CMS experiment at the Large Hadron Collider (LHC) at CERN is upgrading the photo-detection and readout system of the forward hadron calorimeter (HF). During Long Shutdown 1, all of the original PMTs were replaced with multi-anode, thin window photomultipliers. At the same time, the back-end readout system was upgraded to micro-TCA readout. Here we report on the experience with commissioning and calibrating the HF front-end as well as the online operational challenges of the micro-TCA system. Presented at IEEE-NSS-MIC-2016 IEEE Nuclear Science Symposium and Medical Imaging Conference Commissioning of Upgrade Forward Hadron Calorimeters of CMS Burak Bilki On behalf of the CMS CollaborationAbstract-The CMS experiment at the Large Hadron Collider at CERN is upgrading the photodetector and readout system of the forward hadron calorimeter. During Long Shutdown 1, all of the original photomultiplier tubes were replaced with multianode, thin window photomultipliers. At the same time, the backend electronics were upgraded to µTCA-based readout. Here we report on the commissioning, operations and near future plans of the forward hadron calorimeters Phase I Upgrade.

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Characterization of 1800 Hamamatsu R7600-M4 PMTs for CMS HF Calorimeter upgrade

Cited by 9 publications

References 16 publications

Characterization of photomultiplier tubes in a novel operation mode for Secondary Emission Ionization Calorimetry

Characterization of photomultiplier tubes in a novel operation mode for Secondary Emission Ionization Calorimetry

Commissioning of CMS Forward Hadron Calorimeters with Upgraded Multi-anode PMTs and $u$TCA Readout

Commissioning of upgrade forward hadron calorimeters of CMS

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