- Battery operated dose rate warning device for the detection of γ- and X-radiation in the measurand Ḣ*(10) ambient dose equivalent rate.
- The gamma warning light is preferably used to determine shut-off areas when a predefined dose rate is reached
- The device has four warning thresholds that trigger visual and audible alarms when exceeded
- The acoustic alarm can be switched off
- Designed for rugged use
- The housing is splashproof
- Operating time with fully charged battery in ambient radiation approx. 48 hours without warnings
- Stable tripod
- Motion detector for triggering the acoustic warning when a person approaches the hazardous area in the case of increased radiation
 Datasheet |
- The GammaSmart two device is a very robust, pocket-sized, battery-operated dose rate warning device for personal radiation protection
- It detects gamma and X-ray radiation and reports these with clear optical and acoustic single pulses, which increase in the pulse sequence as the dose rate increases
- The splash-proof aluminum housing (IP54) provides shielding against electromagnetic influence, an optical battery control indicates the operational readiness of the device
- A plastic clip is used to attach the dose rate warner to clothing
- GammaSmart two V40 with a dose rate warning threshold at 40 µSv/h for use in non-destructive testing (NDT) radiographic testing. For mobile handling, the local dose rate must not exceed 40 µSv/h.
| Datasheet |
- The GammaTest C is a lightweight, rugged, battery-operated dose rate warning device for radiation protection for the detection of gamma and X-ray radiation in the measurand Ḣ*(10) ambient dose equivalent rate.
- The GammaTest C has four warning thresholds that trigger audible and visual alarms when exceeded
- Below the warning threshold, the GammaTest C indicates readiness for operation via the red LED and signals increases or decreases in dose rate as an optical single-pulse display by changing the flashing frequency
- The dose rate warning threshold 25 µSv/h is used in fire department operations to determine the limit of a danger zone according to FwDV 500
- The dose rate warning threshold 40 µSv/h is required in the field of non-destructive testing (NDT) for radiographic testing: For mobile handling, the local dose rate must not be higher than 40 µSv/h
- The splash-proof, anodized aluminum housing provides shielding against electromagnetic influences
- Operating time with one set of batteries at ambient radiation approx. 250 hours in 24 h operation
| Datasheet |
- GammaFlash is a lightweight, rugged, battery-powered dose rate warning device for the detection of gamma and X-rays in the Ḣ*(10) ambient dose equivalent rate measurand.
- Detector: Geiger-Müller counter tube with energy filter
- It has a fixed warning threshold that triggers a visual and audible alarm when exceeded
- The audible alarm can be acknowledged via a pushbutton on the housing perimeter
- Below the preset warning threshold, the GammaFlash indicates the functional readiness and battery status via a red LED
- By changing the blinking frequency of the optical single pulse display, an increase or decrease of the dose rate is indicated
- Customized warning threshold between 7.5 µSv/h and 10 mSv/h can be implemented ex works
- Easy to operate even with firefighter gloves on
- The plastic housing is jet-proof, oil and petrol resistant
- Thanks to a built-in magnet, the gamma radiation warning light can be attached to suitable metal surfaces if required
- Possibility of individual labeling of the housing cover
Notice:
- In the firefighter version, the GammaFlash is preset to the dose rate warning threshold of 25 µSv/h for determining the limit of a hazardous area
| Datasheet |
Dose rate warning devices are crucial tools in radiation protection, designed to alert individuals in real-time before exceeding safe levels of radiation. These devices are widely used in areas with potential radiation exposure risks, such as in the nuclear industry, medical applications, research facilities, and during the cleanup of contaminated sites. They play a vital role in protecting the health of workers and the public by issuing immediate warnings when the radiation dose rate surpasses predefined limits.
Function and Importance
The primary goal of dose rate warning devices is early warning. They are designed to continuously measure environmental radiation and trigger alarms as soon as the dose rate reaches or exceeds a set threshold. This immediate feedback allows affected individuals to quickly take protective actions, such as retreating from the radiation-affected area or applying further protective measures to minimize radiation exposure.
Types and Features
- Portable warning devices: Compact and lightweight, designed for personal use. They offer the advantage of informing each individual about their personal radiation exposure.
- Fixed installation warning devices: Permanently installed in areas with potential radiation hazards. They continuously monitor radiation levels and issue centralized warnings audible to everyone in the vicinity.
- Audible and visual alarms: Most devices feature audible (e.g., beeps) and visual (e.g., flashing lights) alarms to ensure the warning is perceived in noisy or visually distracting environments.
- Adjustable thresholds: Many models allow for the adjustment of alarm thresholds to tailor them to specific safety requirements.
Application Areas
The application areas of dose rate warning devices are diverse and include:
- Nuclear facilities: Protecting personnel from unintended radiation exposure.
- Medical field: Monitoring radiation dose rates in radiology and radiotherapy departments to protect patients and medical staff.
- Research laboratories: Ensuring the safety of scientists working with radioactive materials.
- Emergency intervention: Used in nuclear accidents or terrorist threats to quickly assess radiation safety.
Dose rate warning devices are indispensable tools in radiation protection, contributing to the safety and health protection of individuals by providing early warnings of high radiation doses. Their ability to issue immediate alerts allows for rapid response to potential hazards, effectively minimizing the risks associated with radiation exposure.