The 8th International Conference on Matter and Radiation at Extremes (ICMRE2025)

67 / 2025-03-10 10:41:07

Time of flight for diagnosing α particles in Proton boron fusion

Proton-boron,Time of flight,Calibration

High-intensity lasers enable the generation of intense particle beams and plasma environments, offering unique opportunities to study nuclear reaction dynamics in dense plasma.A pulsed alpha particle detector based on a scintillator detector was developed, and the time-of-flight principle was utilized to design a time-of-flight spectrometer that can be used to operate in a strongly disturbed environment.Experiments have been conducted on the Proton-Boron nuclear reaction between an ultra-intense laser-accelerated proton beam and a dense boron-containing plasma. The energy spectral data of the nuclear reaction products has been obtained. In addition, The time-flight spectrometer has been calibrated in the low-energy region using the 320 keV device in Lanzhou.  Calibration curves have been obtained in the low-energy region based on the semi-empirical equations.