Ponente
Abstract
The LINrem project aims to develop modern radiation sensors able to overcome the limitations of present market solutions in ambient dosimetry of continuous and pulsed neutron fields. Pulsed fields are created when the neutron intensity undergoes large variations in short periods of time. There are currently serious concerns about the reliability of commercial neutron dosimeters in pulsed fields. This is a major issue for the radiation protection in: 1) new particle accelerator technologies, for example synchrotrons and medical linacs, where either intended pulsed beams or beam losses produce short bursts of secondary neutron radiation; 2) pulsed facilities for basic research and applications, such as spallation and fusion sources, high intensity lasers, among others.
LINrem detectors are intended to provide a good dosimetric response in a lightweight detector format. Extended (En thermal to 10MeV) and non-extended (thermal to GeV) LINrem prototypes have been designed, constructed and tested in different facilities (including isotopic sources, spallation and fusion facilities, protontherapy). Sensitivity to pulsed fields is achieved in LINrem detectors by means of charge integration and digital electronics. The status of the LINrem project is discussed. The technical validation for dosimetry in pulsed fields has been achieved at the n_TOF facility and D-D fusion plasma neutron sources (plasma focus). Experimental results are presented. Possible applications for neutron dosimetry in laser driven sources and flash therapy are discussed.
