General Description
This is dual sensor dosimeter. SIRAD-TLD dosimeter offers the most desired properties SIRAD (instantly seeing the dose above 10 mSv) and TLD-dosimeter (measuring very low dose accurately). TLD - Thermo Luminescence Detector. SIRAD can monitor above ~10 mSv (+20%) visually and instantly. The TLD-dosimeter can monitor dose as low as 0.01 mSv (+7%) with a TLD reader. Both sensors (SIRAD/diacetylene and TLD/lithium fluoride chip) are tissue equivalent, light, rugged, can be carried 24/7, affordable and do not need a power source. The TLD-dosimeter can be reused many times and can be assigned to the user for a life time. Highly sensitive lithium fluoride (LiF) TLD sensors (LiF:Cu,Mg,P or LiF:Cu,Na,Si) are used for SIRAD-TLD as they do not require metal filters for energy corrections. The TLD materials have a negligible effect of ambient conditions and an almost linear response with energy & dose. The TLD-sensor is very sensitive (LLD = 10 micro Sievert/0.01 mSv), the most widely used worldwide and a field proven technology over several decades. TLD readers and certified facilities to the dose are available worldwide for reading the dose. The SIRAD and TLD sensors are small, pre-calibrated, rugged, sealed against moisture and contamination and further protected from ambient conditions in the pocket of the card. Each TLD-dosimeter and the RADTriage card have their own barcodes.
Technical Description
The second sensor is TLD, Thermo Luminescence detector. Radiated TLD emits light proportional to dose. A reader is required to read the dose. Highly sensitive lithium fluoride (LiF) TLD sensors (LiF:Cu,Mg,P or LiF:Cu,Na,Si) are used for SIRAD-TLD as they do not require metal filters for energy corrections. The TLD materials have a negligible effect of ambient conditions and an almost linear response with energy & dose. The TLD-sensor is very sensitive (LLD = 10 micro Sievert/0.01 mSv), the most widely used worldwide and a field proven technology over several decades. TLD readers and certified facilities to the dose are available worldwide for reading the dose.
Evaluation Criteria
THROUGHPUT:
- Detection is instantaneous
- Continuous operation with no defined runs
- 95-32 samples every 2 hours
- The system or device is currently semi-automated
- Device or system is intended for multiple detection assays
- 0-1 solutions, buffer, eluents, and/or reagents
- 0 components
- No set-up of the system is required
- Automatic detection
LOGISTICS:
- Very brief (minutes-hours) training and minimal technical skills
- This system is not capable of transmitting data
- There is no electrical requirement
OPERATIONS:
- Can be used from < -21°C to > 42°C (All temperatures)
- Performance is not influenced by relative humidity
- Between 1 to 3 years shelf life
- Results can be viewed in real-time
- The system or device is currently fully autonomous
DETECTION:
- This system does not test liquids
- System is used for personnel detection
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