RESPONSE OF DOSEMETERS IN FIELDS GENERATED BY LASER-ACCELERATED PROTONS

Area of Science:

• Physics
• Radiation Detection
• Laser Technology

Background:

• Laser-driven acceleration generates intense, ultra-short pulsed ionizing radiation.
• Traditional dosemeters are inadequate for pulsed fields below 1 picosecond (ps).
• Accurate personal monitoring is crucial in laser laboratories.

Purpose of the Study:

• To evaluate the response of conventional dosemeters to pulsed proton beams.
• To assess the suitability of current dosimetry methods for laser laboratory environments.
• To provide data for developing new dosimetry techniques for pulsed radiation fields.

Main Methods:

• Monte Carlo simulations were employed to model radiation interactions.
• Experimental measurements were conducted using proton bunches up to 30 MeV.
• Responses of film, polyallyldiglycol carbonate, and electronic personal dosemeters were analyzed.

Main Results:

• The study investigated the performance of common dosemeters under specific pulsed radiation conditions.
• Both simulation and experimental data were used to characterize dosemeter responses.
• The findings highlight the challenges in accurately measuring radiation doses in single-shot to 1 kHz pulsed fields.

Conclusions:

• Conventional dosemeters show limitations in accurately measuring radiation from intense, ultra-short pulsed lasers.
• Further research is needed to develop and validate dosimetry systems for advanced laser facilities.
• Effective personal monitoring strategies are essential for radiation safety in high-intensity laser research.