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INTENSE THERMAL NEUTRON FIELDS FROM A MEDICAL-TYPE LINAC: THE E_LIBANS PROJECT
Radiation Protection Dosimetry
|January 9, 2018
Summary
The e_LiBANS project generates intense thermal neutron fields using a medical electron LINAC and a novel photo-converter. New detectors accurately measure these neutron fields for interdisciplinary applications.
Area of Science:
- Nuclear Physics
- Materials Science
- Accelerator Technology
Background:
- The e_LiBANS project addresses the need for intense thermal neutron fields for various research and industrial applications.
- Existing methods for generating such fields can be limited in intensity or scope.
Purpose of the Study:
- To establish a novel source of intense thermal neutron fields using a reconditioned medical electron LINAC.
- To develop and implement advanced thermal neutron detectors for real-time characterization of the generated fields.
- To perform a benchmark experiment to validate the e_LiBANS system's performance.
Main Methods:
- Utilizing a reconditioned medical electron LINAC coupled with a custom-designed photo-converter.
- Employing the (γ,n) reaction in high Z targets to produce neutrons.
- Moderating produced neutrons to thermal energies and concentrating them in an irradiation volume.
- Designing and implementing new thermal neutron detectors with high radiation resistance, low noise, and excellent neutron-to-photon discrimination.
Main Results:
- Successful generation of intense thermal neutron fields.
- Development of novel detectors capable of real-time measurement and characterization.
- Demonstration of high neutron-to-photon discrimination, crucial for accurate measurements.
- Validation of the e_LiBANS system through a benchmark experiment.
Conclusions:
- The e_LiBANS project successfully established a versatile source of intense thermal neutron fields.
- The developed detectors provide reliable real-time characterization of neutron fields.
- This technology opens new avenues for interdisciplinary research requiring high-intensity neutron irradiation.
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