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Title: MCP-PMT studies at the High-B test facility at Jefferson Lab

Here we present preliminary results for the gain performance of commercially available 3- mum and 6- mum pore-size single-anode microchannel-plate photomultipliers (MCP PMTs) in magnetic fields up to 5 T and for various orientations of the sensor relative to the field direction. The measurements were performed at Thomas Jefferson National Accelerator Facility in Newport News, VA. Our results show that smaller-pore-size PMTs have better gain performance in magnetic fields. At various angles, the shape of the gain dependence on the strength of the magnetic field strongly depends on the type of the sensor. Also, for each sensor, the azimuthal dependence is strongly correlated with the polar angle. Overall, the sensors exhibit a reasonable performance up to 2 T, although that upper limit depends on the sensor, the applied high voltage, and the orientation of the sensor relative to the field. To optimize the operational and design parameters of MCP PMTs for performance in high magnetic fields, further measurements and simulation studies will be pursued. Furthermore, our studies are part of an R&D for development of a Detector of Internally Reflected Cherenkov Light for the central detector of a future U.S. Electron Ion Collider.
 [1] ;  [2] ;  [1] ;  [2] ;  [3] ;  [2] ;  [4] ;  [4] ;  [3]
  1. Univ. of South Carolina, Columbia, SC (United States)
  2. Old Dominion Univ., Norfolk, VA (United States)
  3. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  4. GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Darmstadt (Germany)
Publication Date:
Report Number(s):
JLAB-PHY-16-2196; DOE/OR/23177-3820
Journal ID: ISSN 1748-0221
Grant/Contract Number:
AC05-06OR23177; BNL eRD4; NSF PHY-125782.
Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 11; Journal Issue: 03; Conference: International Workshop on Fast Cherenkov Detectors - Photon detection, DIRC design and DAQ (DIRC15), Giessen (Germany), 11-13 Nov 2015; Journal ID: ISSN 1748-0221
Institute of Physics (IOP)
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; MCP PMTs; Cherenkov detectors; photon detectors for UV; visible and IR photons (solid-state)
OSTI Identifier: