RadWatch Dosimetry & RadLight Reader

RadWatch ready-to-wear dosimeters are designed to offer superior performance to enhance accurate monitoring of radiological incidents and threats in the field.

It is designed to be read out on the RadLight Reader; both are engineered to withstand combat and other extreme environmental conditions experienced by firefighters and emergency responders.


Tactical/Field Radiation Monitoring

The RadWatch dosimeter is designed to operate under field conditions and is sophisticated enough to measure low-level radiation dangers. Worn on the wrist or chest, it measures whole-body dose due to photons and neutrons. The RadWatch dosimeter has both a primary and secondary detector. The secondary sensor serves as backup for the primary sensor should the primary sensor be rendered inoperable under combat conditions. A built-in RFID chip, which holds identification sensor calibration data, stores dose results from the most recent analysis.

The RadWatch features OSL technology, trusted to monitor workers with exposure to ionizing radiation. All analytical data is stored in the RadLight Reader for later download to a computer via a USB connection facilitating additional analysis and reporting. Dosimeters to be read are simply inserted into the reader’s drawer assembly, which automatically positions their built-in sensors for analysis by the photo-optical engine. The RadWatch and RadLight solution provides a legal dose of record useful for dose reconstruction, risk mitigation and legal defense.


Radwatch Assembly

  • RadWatch consists of three parts as shown.
  • The slide ID is engraved on the slide and cover for easy reading and also encoded in the RFID that accompanies every slide.
  • When assembled, the serial numbers on the three pieces will match.

RadLight Reader’s Simple Operation

  • Push-button start powers on the unit, initiating a startup protocol that correctly positions the slide puller.
  • Visual cues ensure proper orientation when watch is placed in the drawer.
  • When drawer is pushed in, reader automatically removes the slide from the watch base and positions each sensor to be read.
  • Integrated screen displays key identification information, along with the total radiation dose and analytical results (photon and neutron dose), which are also written to the RadWatch RFID chip.


Performance Specifications

Radiations Measured :

  • Gamma and x rays with energies above 50 keV
  • Neutrons with energies above 0.5 MeV using OSL
  • Neutrons with energies above thermal using Fluorescent Nuclear Track Detector (FNTD)

Detection Range :

  • Photons: 0.005 cGy at a depletion of ~0.5% to 3,000 cGy (est.)
  • Neutrons: 0.3 cGy (est.) to 3,000 cGy (est.) with OSL
  • FNTD neutrons: 0.005 cGy (est.) to 5 cGy (est.)