Development of a Compton telescope based on single-crystal diamond detectors and fast scintillators
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2020-12-12 |
| Authors | Daniel Poulson, Peter F. Bloser, K. Ogasawara, John A. Trevino, Jason Legere |
| Institutions | University of New Hampshire at Manchester, University of New Hampshire |
Abstract
Section titled āAbstractāObserving cosmic sources in the medium-energy gamma-ray regime (ā¼0.4 - 10 MeV) will require a highly efficient instrument with good angular resolution and background rejection. Artificial single-crystal diamond detectors (SCDDs) have comparable energy ranges, energy resolution, and threshold levels as traditional silicon solidstate detectors (SSDs), but with faster rise times, improved radiation hardness, and insensitivity to light and temperature. CeBr<sub>3</sub> scintillator is a high density, high Z material with fast rise times and good energy resolution make it a promising gamma-ray calorimeter. This work outlines ongoing work at Southwest Research Institute (SwRI) to develop readout and data acquisition electronics to characterize SCDDs. Additionally, work is ongoing at Los Alamos National Laboratory to characterize CeBr<sub>3</sub> scintillator detectors that are read out with silicon photomultipliers (SiPMs) and recorded via an off the shelf ASIC system (TOFPET ASIC), developed for timeof-flight (ToF) positron emission tomography. The ultimate goal of the project is to individually characterize SCDDs and CeBr<sub>3</sub> and bring them together to form a prototype Compton telescope, which will benchmark simulations of a functional diamond Compton telescope and predict the sensitivity of an optimized instrument for a satellite platform.