Control of nanosecond proton bunches in a magnetically insulated ion diode by resonant nuclear reactions of radiative proton capture

V. A. Ryzhkov, A. V. Stepanov

Tomsk Polytechnic University, Tomsk, Russia

Abstract: To calibrate the detection efficiency of a plastic scintillator that detects prompt gamma quanta from the $^{19}$F$(p,\alpha\gamma)^{16}$O resonant reaction of radiative proton capture and is used to control the dynamics of the arrival of protons with an energy of about 340 keV accelerated by a magnetically isolated pulsed ion diode, a change the polarity of the diode electrodes to the reverse was used, at which electron bunches were accelerated in the geometry of the Luce diode, forming virtual cathodes. The virtual cathodes in the Luce diode collectively accelerated protons to an energy of about 500 keV, the value of which was determined from the drift velocity of these virtual cathodes, while the number of such protons was determined from the activity of the $^{13}$N radionuclide induced by the 457 keV resonance of the $^{12}$C$(p,\gamma)^{13}$N reaction.

Keywords: intense pulsed ion beam, organic scintillator, prompt gamma spectrometry.

Received: 28.12.2022
Revised: 19.01.2023
Accepted: 19.01.2023

DOI: 10.21883/PJTF.2023.07.54917.19470

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