| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5492551 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2017 | 6 Pages |
Abstract
The performance of a new, low-background NaI(Tl) spectrometer, based on γγ-coincidence counting, is discussed. We present experimental coincidence efficiencies, timing resolutions, background count rates, and minimum detectable activities. The spectrometer has been simulated using Geant4, and the results are used for estimating coincidence efficiencies for volume sources. To test the device, we measured the cosmogenic 26Al activity in a small (17.7 g) meteorite fragment. We find a value of 52.9±7.8dpmâkg, in agreement with the activity measured previously in a much larger fragment of the same meteorite using a HPGe detector.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Andrew Tillett, John Dermigny, Mark Emamian, Yuri Tonin, Igal Bucay, Rachel L. Smith, Michael Darken, Corey Dearing, Mikaela Orbon, Christian Iliadis,