Pager-sized spectroscopic personal radiation detector for gamma detection, gamma identification and neutron detection with a single CLYC detector.
The RadEye SPRD-GN uses a spectroscopic Cs₂LiYCl₆:Ce (CLYC) detector that is sensitive to both gamma and neutron radiation. Pulse shape discrimination (PSD) separates gamma radiation from neutron radiation, so the neutron background count rate contains true neutron events only and very sensitive neutron alarm levels can be set. Gain is continuously referenced to the cosmic background neutron peak in the spectrum, without a check source.
The instrument can be worn in a holster or on a standard service belt and guides the user through the next steps after an alarm. Spectra are downloaded and viewed in a single step with the included software, as ANSI N42.42-2012 compliant files for local review and reachback.
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| Radiation detected | Gamma and neutron |
|---|---|
| Detector | CLYC (Cs₂LiYCl₆) |
| Energy resolution (662 keV) | 7.0 % |
| Sensitivity (662 keV) | 110 cps per µSv/h |
| NBR (Natural Background Rejection) | Advanced with 6 energy windows |
| Dose rate range | 1 µR/h – 25 mR/h (10 nSv/h – 250 µSv/h) |
| Energy range (±30 %) | 60 keV – 3 MeV |
| Typical ID time @ 1 µSv/h (100 µR/h) | ~ 5 minutes |
| Neutron verification | Thermal neutrons and fast neutrons |
| Neutron alarm response | < 2 s vs. ANSI N42.48 2008; 1 s vs. ANSI N42.32 2016 |
| Thermal neutron sensitivity | 4 cps/nv |
| Alarm notification | Display, LED, sounder, vibe |
| Battery | AAA × 2, estimated battery life ~ 120 h |
| Weight | 175 g including batteries and rubber sleeve |
| Water/dust rating | IP65 |
| Drop distance onto concrete | 1.5 m |
| Communications | Wired: USB to IR; wireless: BT4 optional |
Source: Thermo Fisher Scientific, RadEye SPRD-GN brochure (2017) and product page 4250813. Full specifications are available in the documents.
