Paredes, B.L., Azevedo, C.D.R., Paganis, S. et al. (3 more authors) (2015) Cryogenic Gaseous Photomultiplier for position reconstruction of liquid argon scintillation light. Journal of Instrumentation, 10. P07017.
Abstract
Presented here are first tests of a Gaseous Photomultiplier based on a cascade of Thick GEM structures intended for gamma-ray position reconstruction in liquid argon. The detector has a MgF2 window, transparent to VUV light, and a CsI photocathode deposited on the first THGEM . A gain of 8⋅ 105 per photoelectron and ~ 100% photoelectron collection efficiency are measured at stable operation settings. The excellent position resolution capabilities of the detector (better than 100 μm) at 100 kHz readout rate, is demonstrated at room temperature. Structural integrity tests of the detector and seals are successfully performed at cryogenic temperatures by immersing the detector in liquid Nitrogen, laying a good foundation for future operation tests in noble liquids.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2015 IOP Publishing Ltd and Sissa Medialab srl. This is an author produced version of a paper subsequently published in Journal of Instrumentation. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Noble liquid detectors (scintillation, ionization, double-phase); Micropattern gaseous detectors (MSGC, GEM, THGEM, RETHGEM, MHSP, MICROPIC, MICROMEGAS, InGrid, etc); Gaseous imaging and tracking detectors; Photon detectors for UV, visible and IR photons (gas) (gas-photocathodes, solid-photocathodes) |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Funding Information: | Funder Grant number SCIENCE AND TECHNOLOGY FACILITIES COUNCIL ST/K001337/1 SCIENCE AND TECHNOLOGY FACILITIES COUNCIL ST/N000277/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 28 Oct 2016 10:58 |
Last Modified: | 21 Mar 2018 04:45 |
Published Version: | http://dx.doi.org/10.1088/1748-0221/10/07/P07017 |
Status: | Published |
Publisher: | IOP Publishing |
Refereed: | Yes |
Identification Number: | 10.1088/1748-0221/10/07/P07017 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:106519 |