Abstract
The Gaseous Detector with Germanium Tagging (GADGET) is a new detection system devoted to the measurement of weak, low-energy β-delayed proton decays relevant for nuclear astrophysics studies. It is comprised of a new gaseous Proton Detector equipped with a Micromegas readout for charged particle detection, surrounded by the existing Segmented Germanium Array (SeGA) for the high-resolution detection of the prompt γ-rays. In this work we describe in detail for the first time the design, construction, and operation of the GADGET system, including performance of the Proton Detector. We present the results of a recent commissioning experiment performed with 25Si beam at the National Superconducting Cyclotron Laboratory (NSCL). GADGET provided low-background, low-energy β-delayed proton detection with efficiency above 95%, and relatively good efficiency for proton-gamma coincidences (2.7% at 1.37 MeV).
| Original language | English |
|---|---|
| Pages (from-to) | 93-102 |
| Number of pages | 10 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 940 |
| DOIs | |
| State | Published - 1 Oct 2019 |
| Externally published | Yes |
Keywords
- MICROMEGAS
- MPGD
- Nuclear astrophysics
- Radiative proton capture
- Si(βp)Mg
- β-delayed proton emission
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Instrumentation
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