Publications
Publication Information
| Title | Characteristics of fast timing MCP-PMTs in magnetic fields |
| Authors | Mohammad Hattawy, Junqi Xie, M. Chiu, Marcellinus Demarteau, Kawtar Hafidi, Edwards May, Jose Repond, R. Wagner, L. Xia, Carl Zorn |
| JLAB number | JLAB-PHY-19-2906 |
| LANL number | arXiv:1808.07824 |
| Other number | DOE/OR/23177-4660 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Nuclear Instruments & Methods in Physics Research, Section A Volume 929 Page(s) 84-89 Refereed | |
| Publication Abstract: | 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 $\pm$8$^{\circ}$, due to the 8$^{\circ}$ bias angle of the MCP pores. The maximum signal amplitude was observed at different bias voltages depending on the magnetic field strength. |
| Experiment Numbers: | |
| Group: | Detector |
| Document: | |
| DOI: | https://doi.org/10.1016/j.nima.2019.03.045 |
| Accepted Manuscript: | 1-s2.0-S0168900219303535-main.pdf embargoed final, peer reviewed, accepted manuscript |
| Supporting Documents: | |
| Supporting Datasets: | |