AI Article Synopsis
- A compact neutron spectrometer using BC-501A liquid scintillator was tested at the TUMAN-3M tokamak to measure neutron spectra during plasma discharges.
- The spectrometer was calibrated with data from a cyclotron accelerator, which helped in accurately analyzing neutron energy distributions.
- This led to important results, such as calculating the 2.45 MeV neutron yield and understanding the dynamics of deuterium slowing down in the plasma during neutral beam injection heating.
Article Abstract
A compact neutron spectrometer based on the BC-501A liquid organic scintillator was applied to neutron measurements at the TUMAN-3M tokamak. The spectrometer was calibrated using measurements from the ion beam of the cyclotron accelerator. Neutron spectra were measured during discharges using a neutral deuterium beam injection into the TUMAN-3M D-plasma. An energy distribution of the neutrons from the plasma that hit the spectrometer was obtained from the measured BC-501A instrumental spectra by the DeGaSum code using detector response functions obtained in the course of the calibration. This allowed for the estimation of the 2.45 MeV neutron yield and the evaluation of both the time evolution of the DD fusion rate and the characteristic time of the injected deuterium slowing down in discharges with neutral beam injection heating.
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| http://dx.doi.org/10.1063/5.0040667 | DOI Listing |
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