- By:
- Loyd, Matthew S; Khaplanov, Anton ; Sedov, Vladislav N; Beal, Justin D; Visscher, Theodore ; Donahue Jr, Cornelius ; Montcalm, Christopher A; Warren, Gregory E; Butz, Ryan W; Boone, Cristina ; Hart, Cameron L; Riedel, Richard A; Diawara, Yacouba
- Journal Name:
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- Page Number:
- 168871
- Volume:
- 1058
- Issue Number:
- 1
- Publication Date:
- November 21, 2023
- View DOI Listing:
- https://doi.org/10.1016/j.nima.2023.168871
Abstract
Thermal and cold neutron beamlines require detector systems that have a high neutron efficiency, large active area, and good spatial resolution. One type of detector that has been implemented at beamlines at the Spallation Neutron Source (SNS) is a scintillator-based Anger camera that utilizes photomultiplier tubes (PMTs) as photodetectors. In this work, we present a new Anger camera design that replaces PMTs with silicon photomultipliers (SiPMs). This new design offers better resolution, less distortion, and more compactness than the previous cameras. A camera with active area of ∼100 cm2 was shown to have a spatial resolution better than 0.5 mm. Additionally, the use of SiPMs allows for use in strong magnetic fields, opening the possibility of additional experimental capabilities. A prototype has been built that demonstrates vacuum-compatibility, as required for a proposed beamline for the Second Target Station at SNS.
