IPAC'25 - the 16th International Particle Accelerator Conference

Using TLDs for radiation passive detection in NSRRC

THPS025

5 Jun 2025, 15:30

2h

Exhibiton Hall A _Salmon (TWTC)

Poster Presentation MC6.T18 Radiation Monitoring and Safety Thursday Poster Session

Speaker

Sy-Yu Lin (National Synchrotron Radiation Research Center)

Description

The NSRRC currently operates two accelerators: the Taiwan Light Source (TLS), featuring a beam energy of 1.5 GeV and a circumference of 120 meters, and the Taiwan Photon Source (TPS), with a beam energy of 3 GeV and a circumference of 518.4 meters. The horizontal planes of the TPS and TLS beamlines are separated by approximately four floors.
The Thermo-Luminescent Dosimeter (TLD) is a compact and well-established detection technology. To ensure that personnel working at NSRRC operate in an environment as close to background radiation levels as possible, we have deployed approximately 200 TLDs across the two accelerator rings. For each beamline, three points are detectived: the optical hutch, the user experimental area, and the beamline endpoint. Additional TLDs are strategically placed around the accelerator's surroundings, including the outer surface of the shielding tunnel, downstream of the injection section, the inner surface of the shielding tunnel, the roof of the RF cavities, and their downstream regions.
In this paper, we will present the detection data collected at NSRRC over the past several years.