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Title: Characteristics of fast timing MCP-PMTs in magnetic fields

Journal Article · · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
 [1];  [2];  [3];  [2];  [2];  [2];  [2];  [2];  [2];  [4]
  1. Argonne National Lab. (ANL), Lemont, IL (United States); Old Dominion University, Norfolk, VA (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
+ Show Author Affiliations

The motivation of this paper is to explore the parameters that affect the performance of Microchannel Plate Photomultiplier Tubes (MCP-PMTs) in magnetic fields with the goal to guide their design to achieve a high magnetic field tolerance. MCP-PMTs based on two different designs were tested. The magnetic field tolerance of MCP-PMT based on a design providing independently biased voltages showed a significant improvement (up to 0.7 T) compared to the one utilizing an internal resistor chain design (up to 0.1 T), indicating the importance of individually adjustable voltages. The effects of the rotation angle of the MCP-PMT relative to the magnetic field direction and of the bias voltage between the photocathode and the top MCP were extensively investigated using the MCP-PMT based on the independently biased voltage design. It was found that the signal amplitude of the MCP-PMT exhibits an enhanced performance at a tilt angle of +/- 8°, due to the 8°bias angle of the MCP pores. The maximum signal amplitude was observed at different bias voltages depending on the magnetic field strength.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0012704; AC02-06CH11357; AC05-06OR23177
OSTI ID:
1511572
Alternate ID(s):
OSTI ID: 1523819; OSTI ID: 1531161; OSTI ID: 1636370
Report Number(s):
BNL-211591-2019-JAAM; JLAB-PHY-19-2906; DOE/OR/23177-4660; arXiv:1808.07824
Journal Information:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 929, Issue C; ISSN 0168-9002
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Cited By (1)

Fast-timing microchannel plate photodetectors: Design, fabrication, and characterization journal April 2019

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Fast timing
Microchannel plate
Photodetector
Electron–ion collider
Particle identification detector
Magnetic field
electron-ion collider
fast timing
magnetic field
microchannel plate
particle identification detector
photodetector