The IMB photomultiplier test facility

Wüest, C.; Bionta, R. M.; Blewitt, G.; Bratton, C. B.; Cortez, B.; Errede, S.; Foster, G. W.; Gajewski, W.; Goldhaber, M.; Greenberg, Jay; Jones, Timothy W.; Kropp, W. R.; Learned, J. G.; Lehmann, E.; LoSecco, J. M.; Murthy, P. V. Ramana; Park, H. S.; Reines, F.; Schultz, J.; Shumard, E.; Sinclair, D.; Smith, D.; Sobel, H. W.; Stone, J. L.; Sulak, L.; Svoboda, R.; Velde, J. C. van der

doi:10.1016/0168-9002(85)90025-7

Cited by 11 publications

(3 citation statements)

References 9 publications

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“…The performance of the 3-inch PMTs for the JUNO instrumentation is investigated in a different campaign [13]. Several other PMT test facilities were developed in the past: we mention the ones of the IMB [14], Borexino [15,16], Double Chooz [17], Pierre-Auger [18,19], LHAASO [20], and KM3Net [21,22] experiments.…”

Section: Jinst 16 T08001mentioning

confidence: 99%

A container-based facility for testing 20'000 20-inch PMTs for JUNO

Wonsak¹,

Tietzsch²,

Sterr³

et al. 2021

J. Inst.

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The main goal of the JUNO experiment is the determination of the neutrino mass ordering. To achieve this, an extraordinary energy resolution of at least 3 % at 1 MeV is required for which all parts of the JUNO detector need to meet certain quality criteria. This is relevant in particular for those which are related to the energy resolution of the detector, such as the photomultiplier tubes (PMTs) to be deployed in JUNO. This paper presents the setup and performance of a dedicated PMT mass testing facility to examine and characterize the performance of the 20-inch JUNO PMTs. Its quasi-industrial size and operation level allows to test all 20000 PMTs intended to be used in the JUNO experiment. With this PMT mass testing system, several key characteristics like dark count rate, peak-to-valley ratio, photon detection efficiency, and timing resolution have been determined at an operating gain of 1 × 107 and assessed with respect to the requirements of JUNO. Measurement conditions and modes for the PMTs as well as estimated accuracies for the determination of the individual PMT parameters with the system are presented as well.

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Section: Jinst 16 T08001mentioning

confidence: 99%

A container-based facility for testing 20'000 20-inch PMTs for JUNO

Wonsak¹,

Tietzsch²,

Sterr³

et al. 2021

J. Inst.

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“…6. Meanwhile, it is valuable to stress that several other PMT characterization campaigns were performed in the past; we mention those of the IceCube [34], MiniBooNE [35], IMB [36], Borexino [37,38], Daya Bay [39], Chooz [40], SNO [41], Double Chooz [42,43], DAMA [44], Auger [45,46], ANNIE [47], YBJ [48], LHAASO [49,50], Hyper-Kamiokande [51,52], and KM3Net [53,54] experiments. For completeness, it should be noted here that the 3-inch PMTs used for JUNO are investigated as well in a separate campaign [55,56].…”

Section: Introductionmentioning

confidence: 99%

Mass Testing and Characterization of 20-inch PMTs for JUNO

Abusleme,

Adam,

Ahmad

et al. 2022

Preprint

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Main goal of the JUNO experiment is to determine the neutrino mass ordering using a 20 kt liquid-scintillator detector. Its key feature is an excellent energy resolution of at least 3 % at 1 MeV, for which its instruments need to meet a certain quality and thus have to be fully characterized. More than 20,000 20-inch PMTs have been received and assessed by JUNO after a detailed testing program which began in 2017 and elapsed for about four years. Based on this mass characterization and a set of specific requirements, a good quality of all accepted PMTs could be ascertained. This paper presents the performed testing procedure with the designed testing systems as well as the statistical characteristics of all 20inch PMTs intended to be used in the JUNO experiment, covering more than fifteen performance parameters including the photocathode uniformity. This constitutes the largest sample of 20-inch PMTs ever produced and studied in detail to date, i.e. 15,000 of the newly developed 20inch MCP-PMTs from Northern Night Vision Technology Co. (NNVT) and 5,000 of dynode PMTs from Hamamatsu Photonics K. K.(HPK).

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“…The performance of the 3-inch PMTs for the JUNO instrumentation is investigated in a different campaign [12]. Several other PMT test facilities were developed in the past: we mention the ones of the IMB [13], Borexino [14,15], Double Chooz [16], Pierre-Auger [17,18], LHAASO [19], and KM3Net [20,21] experiments. The basic unit of the PMT mass testing system for JUNO is a 20-feet high-cube reefer container, see figure 1.…”

Section: Introductionmentioning

confidence: 99%

A container-based facility for testing 20'000 20-inch PMTs for JUNO

Wonsak,

Tietzsch,

Sterr

et al. 2021

Preprint

View full text Add to dashboard Cite

The main goal of the JUNO experiment is the determination of the neutrino mass ordering. To achieve this, an extraordinary energy resolution of at least 3 % at 1 MeV is required for which all parts of the JUNO detector need to meet certain quality criteria. This is relevant in particular for those which are related to the energy resolution of the detector, such as the photomultiplier tubes (PMTs) to be deployed in JUNO. This paper presents the setup and performance of a dedicated PMT mass testing facility to examine and characterize the performance of the 20-inch JUNO PMTs. Its quasi-industrial size and operation level allows to test all 20000 PMTs intended to be used in the JUNO experiment. With this PMT mass testing system, several key characteristics like dark count rate, peak-to-valley ratio, photon detection efficiency, and timing resolution have been determined at an operating gain of 1 × 10 7 and assessed with respect to the requirements of JUNO. Measurement conditions and modes for the PMTs as well as estimated accuracies for the determination of the individual PMT parameters with the system are presented as well. K: photon detectors for UV, visible and IR photons (vacuum) (photomultipliers, HPDs, others), data acquisition concepts, neutrino detectors

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The IMB photomultiplier test facility

Cited by 11 publications

References 9 publications

A container-based facility for testing 20'000 20-inch PMTs for JUNO

A container-based facility for testing 20'000 20-inch PMTs for JUNO

Mass Testing and Characterization of 20-inch PMTs for JUNO

A container-based facility for testing 20'000 20-inch PMTs for JUNO

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