GMS595

Wide-Range Gamma Dose-Rate Monitor

Developed in partnership with AWE the GMS595 wide-range gamma dose rate monitor combines the measurement range of a suite of gas-filled detectors into a single hand-held instrument.

Capable of accurately measuring dose-rates from nSv/hr to Sv/hr, the GMS595 is simple to operate, quick to set up, environmentally stable and now the standard gamma dose-rate instrument across site at AWE.

Energy Range and Accuracy

The GMS595 boasts an impressive energy response from 32 keV to 7 MeV, covering the entire gamma radiation spectrum. Unlike conventional gas-filled detectors, which require warm-up time and are affected by temperature and pressure, the GMS595 operates seamlessly without delays. From nano Sieverts per hour (nSv/hr) to 1 Sievert per hour (Sv/hr), this instrument provides accurate measurements across the entire dose-rate spectrum.

Instant Detection Capability

Operators no longer need to wait minutes for their instruments to stabilise. With the GMS595, detection capability is instantaneous: just two seconds from power-on. This efficiency significantly enhances field operations, allowing professionals to focus on tasks without unnecessary delays.

Pulsed Gamma and X-ray Fields

The latest development in the GMS595’s capabilities is its ability to measure dose rates in pulsed gamma and x-ray fields. This breakthrough extends its applications beyond traditional gamma monitoring. Now, radiation protection professionals can confidently use the GMS595 for non-destructive testing (NDT) and shielding surveys, even in high-powered betatron and x-ray generator environments.

More information here >>>

  • Energy response 32keV to 7MeV
  • H*10 ambient dose equivalence
  • Integrated dose feature
  • Plastic scintillation detector
  • Dose-rate measurement range 100nSvh⁻¹ to 500mSvh⁻¹
  • Dose measurement range 100nSv to better than 1.75Sv
  • Linearity of ± 10%
  • 2 Modes of display: dose rate & total dose
  • Temperature-compensated
  • Operating temperature 0°C to +40°C
  • Calibration procedure in accordance with GPG No14

 

  • Radiation monitoring
  • Radiation Clean-up
  • Shielding Validation
  • Betatron & X-ray measurements
  • Non Destructive Testing
  • Waste Assay / Clearance
  • Research

 

The JCS GMS595 wide-range gamma dose-rate monitor
The JCS GMS595 wide-range gamma dose-rate monitor
The JCS GMS595 wide-range gamma dose-rate monitor.
The JCS GMS595 wide-range gamma dose-rate monitor.
The JCS GMS595 wide-range gamma dose-rate monitor
The JCS GMS595 wide-range gamma dose-rate monitor
The JCS GMS595 wide-range gamma dose-rate monitor.
The JCS GMS595 wide-range gamma dose-rate monitor.
Item Data
Range <0.10μSvh⁻¹ to 999mSvh⁻¹   
Energy Response 32keV (13% under reponse) to 7MeV
Linearity ± 10%
Detector Tissue Equivilant Plastic Scintillator
Response Time 2 seconds
Temperature Range 0°C to +40°C
Display 64x128 pixel LCD display. Single range in units of µSvh⁻¹
Power Requirements 2 x Durcell Industrial LR14 ‘C’ type alkaline cells
Battery Life Over 50  hours
Weight 1.58 kg
Dimensions L: 330mm x W: 90mm X H:145mm
Testing and Certification EMC & Full Type Test supplied on request
Case
Inc. GMS595 & Batteries 4.6 kg
Dimensions L:  410mm   W:  350mm     D: 200mm

The GMS595 has undergone several firmware updates, enhancing its functionality and compatibility:

v1.2 (Initial Release)

  • Met primary requirements.
  • Laid the foundation for subsequent improvements.

v2.04

  • Integrated dose feature.
  • Introduced bootloader functionality.

v2.09

  • Betatron compatible.
  • Updated hardware support.

v2.10 (available late 2024)

  • Support was added for beta detector measurements.
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