ELSE NUCLEAR
ELSE NUCLEAR
HERMES
Rugged portable units for radiation survey and emergency response
- Detector type
- HERMES NAI: NaI(Tl) 3 × 3 in with SiPM
- Spectrum channels
- HERMES NAI: up to 2,048
- Energy range
- HERMES NAI: 30 keV–3 MeV
15 referenced values
Bild: ELSE NUCLEAR
HERMES UW
Submersible gamma spectrometer and dose-rate meter for pools
System for underwater radiological characterisation, for example in fuel storage and segmentation pools. A LaBr₃ spectrometer and a wide-range GM tube sit in an IP68 stainless-steel probe lowered by hand or by crane, and the system gives accurate spectrometry even at very high count rates. The control unit is in a case on a stainless-steel frame with wheels.
- Detector type
- LaBr₃(Ce³⁺) scintillator with SiPM for spectrometry; wide-range GM tube for dose rate1
- Energy range
- 30 keV–2 MeV1
- Weight
- Support frame <40 kg; probe <5 kg1
Download product sheet (PDF)All values with references – for tender documents
Specifications checked against the manufacturer’s documents on 2026-10-17
Overview
Key features
- Real-time isotope identification and spectra
- Decontaminable stainless-steel probe and frame
- Radiation-tolerant camera and inspection pole on request
Specifications
The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.
Detector
| Detector type | LaBr₃(Ce³⁺) scintillator with SiPM for spectrometry; wide-range GM tube for dose rate1 |
|---|
Performance
| Energy resolution at 662 keV | 3.3% FWHM1 |
|---|
Measuring range
| Energy range | 30 keV–2 MeV1 |
|---|---|
| Spectrometry range | 100 nSv/h–20 mSv/h1 |
| Dose-rate range | 0.1 µSv/h–1 Sv/h; up to 100 Sv/h on request1 |
Connectivity & interface
| Communication | RS-232, USB and Ethernet1 |
|---|
Power & battery
| Battery life | Up to 10 hours continuous operation (internal rechargeable battery)1 |
|---|---|
| Power supply | Rechargeable battery, >10 h1 |
Mechanical
| Dimensions | Support frame 68 × 50 × 115 cm (W × D × H); probe Ø8 × 35 cm1 |
|---|---|
| Weight | Support frame <40 kg; probe <5 kg1 |
Environment & ratings
| IP rating | IP68, decontaminable stainless-steel probe1 |
|---|---|
| Operating temperature | 0–40 °C1 |
Ordering & accessories
| Accessories | Radiation-tolerant camera for visual inspection, adjustable inspection pole, disposable protective sleeve against contaminated water and warranty extension (24 months) on request1 |
|---|
General
| Use | Underwater radiological surveys, hot-spot mapping in nuclear pools, decommissioning and segmentation in reactor basins, and radiological control of waste handling and storage1 |
|---|
The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.
Documents
Sources
The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.
- 1
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- Detector type
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- Total weight
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11 referenced values
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Gamma spectrometry and radiation mapping payload for drones
- Detector type
- NaI(Tl) scintillator with crystal sizes up to 3 × 3 in and digital MCA with up to 2,048 channels; optional MERCURY dose-rate detector (energy-compensated dual GM)
- Energy range
- 40 keV–3 MeV; 50 keV–3 MeV with 2 × 2 in NaI(Tl)
- Weight
- About 2.5 kg (2 × 2 in NaI(Tl))
11 referenced values
ELSE NUCLEAR
B-RAD
Gamma spectrometry meter
- Detector type
- 0.6 × 0.6 inch LaBr₃(Ce³⁺), SiPM
- Energy range
- 30 keV–2 MeV
- Energy resolution
- 3.3% FWHM at 662 keV
12 referenced values
Contact us
Questions about this product?
We help you choose the right configuration, detector and accessories for your measurement task.
Oscar ÅgerstamFounder & CEO