Comparison between large area photo-multiplier tubes at cryogenic temperature for neutrino and rare event physics experiments

Falcone, A.; Bertoni, R.; Boffelli, F.; Bonesini, M.; Cervi, T.; Menegolli, A.; Montanari, C.; Prata, M.C.; Rappoldi, A.; Rossella, M.; Spanu, M.; Torti, M.; Zani, A.

doi:10.1016/j.nima.2014.11.017

Cited by 12 publications

(14 citation statements)

References 8 publications

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“…Starting from the centre, it can be noted a slight decrease of the QE, followed by a continuous increase up to the windows border. These variations, within ±5% around the QE mean value, reflect the sensitivity variation of the bialkali photo cathode to visible light without TPB coating, as shown by the dashed curve in the same plot [9][10].…”

Section: Quantum Efficiency Measurements On Pmtsmentioning

confidence: 75%

An innovative technique for TPB deposition on convex window photomultiplier tubes

et al. 2018

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A: Tetraphenyl-butadiene (TPB) is an organic fluorescent chemical compound generally used as wavelength shifter thanks to its extremely high efficiency to convert ultra-violet photons into visible light. A common method to use TPB with detectors sensitive to visible light, such as photomultiplier tubes (PMTs), is to deposit thin layers on the device window. To obtain effective TPB layers, different procedures can be used. In this work a specific evaporation technique adopted to coat 8 in convex windows photomultiplier tubes is presented. It consists in evaporating TPB by means of a Knudsen cell, which allows to strictly control the process, and in a rotating sample support, which guarantees the uniformity of the deposition. Simulation results and experimental tests demonstrate the effectiveness of this evaporation technique from the point of view of deposition uniformity and light conversion efficiency. K : Photon detectors for UV (photomultipliers); Noble liquid detectors; Monochromators. 1Corresponding author. Now at Brookhaven National Laboratory, Brookhaven NY, USA. arXiv:1807.07123v4 [physics.ins-det]

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Section: Quantum Efficiency Measurements On Pmtsmentioning

confidence: 75%

An innovative technique for TPB deposition on convex window photomultiplier tubes

et al. 2018

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“…Single photo electron response (SER) was studied, as a function of the position of the fiber along two perpendicular diameters, to estimate photo-cathode uniformity. Hamamatsu PMTs showed a good uniformity, within 10%, up to 10 cm from the tube axis, where a gain reduction occurs, probably due to the electric field non uniformity in the peripheral region of the tube (see also [3,4]). This behavior does not occur with ETL 9357 KFLB, where the uniformity remains within 10% up to the border of the PMT windows (see Fig.…”

Section: Characterization At Room Temperaturementioning

confidence: 99%

“…PMTs were illuminated with a 405 nm laser diode 1 , using a pulse generator 2 and an optical fiber 3 . A proper support was used to maintain the fiber at a fixed orientation, normal to the PMT window, while allowing to move it in various positions on the window itself.…”

Section: Characterization At Room Temperaturementioning

confidence: 99%

“…In view of future applications, three new large area PMTs, Hamamatsu R5912 Mod and R5912-02 Mod and ETL 9357 KFLB (see also [1,2]), were characterized both at room (see Section 2 and 3) and at cryogenic temperature (see Section 4). The work presented in [3,4] was completed by studying the poor linearity response of Hamamatsu R5912-02 PMTs and by characterizing the ETL 9357 KFLB PMT at cryogenic temperature, using a new PMT specimen, with no problem on photo-cathode uniformity response.…”

Section: Introductionmentioning

confidence: 99%

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Performance of large area PMTs at cryogenic temperatures for neutrino and rare event physics experiments

Falcone¹,

Boffelli²,

Bonesini³

et al. 2016

Proceedings of International Conference on New Photo-Detectors — PoS(PhotoDet2015)

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“…At the time of the Workshop tests wre under way to select the most suitable PMT model [17]. Three large area (8") PMTs: Hamamatsu R5912 Mod and R5912-02 Mod and ETL 9357 KFLB have been studied, both at room and cryogenic temperature.…”

Section: Upgraded Light Collection Systemmentioning

confidence: 99%

Icarus

MONTANARI¹

2016

Proceedings of XVI International Workshop on Neutrino Telescopes — PoS(NEUTEL2015)

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ICARUS T600 Liquid Argon Time Projection Chamber is the first large mass (760 tons) example of a new generation of detectors able to combine the imaging capabilities of the old famous bubble chamber with the excellent energy measurement of electronic detectors. In 2013 ICARUS concluded a very successful, long duration run with the T600 detector at the LNGS underground laboratory taking data both with the CNGS neutrino beam and with cosmic rays. Several relevant physics and technical results were achieved. A joint ICARUS/SBND/MicroBooNE effort is taking place to develop a collaborative, international program at FNAL's Booster Neutrino Beam (and NuMI off-axis) with three detectors at different baselines by 2018 (near: SBND, mid: Mi-croBooNE, far: ICARUS). The T600 detector was transported to CERN at the end of 2014 for a series of upgrades before being taken to FNAL. The refurbishment operations, inside the WA104 programme at CERN, of the Icarus T600 detector will be outlined, with an introduction to the physics program at the FNAL short-baseline Booster neutrino beam (BNB).

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Comparison between large area photo-multiplier tubes at cryogenic temperature for neutrino and rare event physics experiments

Cited by 12 publications

References 8 publications

An innovative technique for TPB deposition on convex window photomultiplier tubes

An innovative technique for TPB deposition on convex window photomultiplier tubes

Performance of large area PMTs at cryogenic temperatures for neutrino and rare event physics experiments

Icarus

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