Abstract
A new detector concept is presented for combined imaging and spectroscopy of fast-neutrons and gamma rays. It comprises a liquid-Xenon (LXe) converter and scintillator coupled to a UV-sensitive gaseous imaging photomultiplier (GPM). Radiation imaging is obtained by localization of the scintillation-light from LXe with the position-sensitive GPM. The latter comprises a cascade of Thick Gas Electron Multipliers (THGEM), where the first element is coated with a CsI UV-photocathode. We present the concept and provide first model-simulation results of the processes involved and the expected performances of a detector having a LXe-filled capillaries converter. The new detector concept has potential applications in combined fast-neutron and gamma-ray screening of hidden explosives and fissile materials with pulsed sources.
| Original language | English |
|---|---|
| Article number | C06008 |
| Journal | Journal of Instrumentation |
| Volume | 7 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1 Jun 2012 |
| Externally published | Yes |
Keywords
- Gamma detectors (scintillators, CZT, HPG, HgI etc)
- Neutron detectors (cold, thermal, fast neutrons)
- Noble-liquid detectors (scintillation, ionization two-phase)
- Photon detectors for UV, visible and IR photons (gas)
ASJC Scopus subject areas
- Mathematical Physics
- Instrumentation