Rate capability and magnetic field tolerance measurements of fast timing microchannel plate photodetectors

Journal Article · Mon Nov 06 00:00:00 EST 2017 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2017.10.059· OSTI ID:1476278

Xie, Junqi ^[1]; Hattawy, Mohammad ^[1]; Chiu, Mickey ^[2]; Hafidi, Kawtar ^[1]; May, Edward ^[1]; Repond, Jose ^[1]; Wagner, Robert ^[1]; Xia, Lei ^[1]

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1. Argonne National Lab. (ANL), Argonne, IL (United States)
2. Brookhaven National Lab. (BNL), Upton, NY (United States)

Microchannel plate photodetectors provide both picosecond time resolution and sub-millimeter position resolution, making them attractive photosensors for particle identification detectors of a future U.S. Electron Ion Collider. We have tested the rate capability and magnetic field tolerance of 6 x 6 cm(2) microchannel plate photodetectors fabricated at Argonne National Laboratory. The microchannel plate photodetector is designed as a low-cost all-glass vacuum package with a chevron pair stack of next-generation microchannel plates functionalized by atomic layer deposition. The rate capability test was performed using Fermilab's 120 GeV/c primary proton beam, and the magnetic field tolerance test was performed using a solenoid magnetic with tunable magnetic field strength up to 4 T. The measured gain of the microchannel plate photodetector is stable up to 75 kHz/cm(2) and varies depending on the applied magnetic field strength and the rotation angle relative to the magnetic field direction.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Nuclear Physics (NP); ANL Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Grant/Contract Number: SC0012704; AC02-06CH11357; AC02-98-CH10886
• OSTI ID: 1476278
• Alternate ID(s): OSTI ID: 1491020; OSTI ID: 1693722
• Report Number(s): BNL-209136-2018-JAAM
• Journal Information: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 912; ISSN 0168-9002
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
fast timing
microchannel plate
photodetector
Electron Ion Collider
particle identification detector
rate capability
magnetic field
rotation angle