A comparison of different recombination methods in mixed radiation fields at high energy accelerators

Area of Science:

• Physics
• Radiation Dosimetry
• Accelerator Physics

Background:

• Recombination chambers have been utilized for over 40 years in mixed radiation fields at high-energy accelerators.
• Accurate dosimetry is critical for radiation protection in these environments.

Purpose of the Study:

• To provide an overview of 11 selected recombination methods for determining H*(10) in mixed radiation fields.
• To introduce a novel correction factor for enhancing the accuracy of dosimetry measurements.

Main Methods:

• Review of 11 established recombination methods for H*(10) determination.
• Development and proposal of a new correction factor accounting for radiation quality dependence.
• Calibration of the correction factor using a reference neutron radiation field.

Main Results:

• All 11 reviewed methods yielded consistent H*(10) values within a 20% accuracy.
• The proposed correction factor effectively addresses the chamber sensitivity variation with radiation quality.
• The methods are suitable for monitoring complex mixed radiation fields at workplaces.

Conclusions:

• Established recombination methods are reliable for H*(10) dosimetry at high-energy accelerators.
• The new correction factor enhances measurement accuracy by considering radiation quality.
• These dosimetry techniques are vital for ensuring safety in high-energy accelerator workplaces.