RADIOPROTECTION SURVEILLANCE OF THE TJ-II OPERATION BY TLD

Area of Science:

• Nuclear Fusion Science
• Radiation Physics
• Radiological Protection

Background:

• The TJ-II stellarator requires radiological surveillance per Spanish Nuclear Regulation.
• Radiation sources include hard X-rays from runaway electrons, soft X-rays from thermalized electrons, plasma heating systems, and active diagnostics.
• Auxiliary systems, like high-voltage power supplies, also necessitate radiological assessment.

Purpose of the Study:

• To verify the radiological classification of working areas within the TJ-II facility.
• To determine the range of radiological influence from stellarator operations.
• To analyze integrated dose equivalents from 2015-2020.

Main Methods:

• Deployment of 15 dosemeters in controlled and public areas within the TJ-II building.
• Monitoring of integrated dose equivalents over the period 2015-2020.
• Analysis of dosimetry data to assess radiological impact.

Main Results:

• Integrated dose equivalent measurements were collected from multiple locations.
• Data analysis aimed to define the extent of radiological influence from the stellarator.
• Results from 2015-20 were presented and analyzed to inform safety protocols.

Conclusions:

• The radiological surveillance program ensures compliance with safety regulations.
• Dosimetry data provides a basis for understanding and managing radiation exposure.
• The findings contribute to the safe operation of the TJ-II stellarator.