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Evaluating two extremity dosemeters based on LiF:Mg,Ti or LiF:Mg,Cu,P
L Z Luo1, K J Velbeck, J E Rotunda
1Saint-Gobain Crystals and Detector, Solon, OH 44139, USA. Ling.Z.Luo@Saint-gobain.com
Radiation Protection Dosimetry
|October 18, 2002
Summary
A new extremity dosemeter was evaluated for its performance. This passive device, featuring automatic TLD reader and database software, demonstrated accurate dosimetric performance meeting industry standards.
Area of Science:
- Medical Physics
- Radiation Detection and Measurement
Background:
- Extremity dosemeters are crucial for monitoring occupational radiation exposure.
- Existing passive dosemeters require evaluation for enhanced features and accuracy.
Purpose of the Study:
- To evaluate the performance of a new passive extremity dosemeter.
- To assess its suitability for routine occupational radiation monitoring.
Main Methods:
- Two types of dosemeters utilizing LiF:Mg,Ti (TLD-700) and LiF:Mg,Cu,P (TLD-700H) were tested.
- Key dosimetric properties including sensitivity, repeatability, and energy/angular responses were measured.
- A dose calculation algorithm was developed and validated against ANSI N13.32-1995 standards.
Main Results:
- The new extremity dosemeter demonstrated reliable sensitivity and repeatability.
- Angular and energy response evaluations confirmed its suitability for diverse radiation fields.
- The developed dose calculation algorithm achieved high accuracy, meeting performance testing standards.
Conclusions:
- The evaluated passive extremity dosemeter offers a reliable and accurate solution for occupational radiation monitoring.
- Its design incorporates features like automatic TLD reading and database management for efficient use.
- The dosemeter's performance aligns with established industry standards for extremity dosimetry.