Neutron time-of-flight spectrometry of high-energy proton bunches collectively accelerated in the Luce diode

Рыжков, В. А.; Pyatkov, I.N.; Ремнев, Г. Е.

doi:10.1016/j.nima.2021.166274

Cited by 2 publications

(3 citation statements)

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“…Here we report our recent results on a selective γand ToF spectrometry of neutrons generated by ions collectively accelerated with a Luce diode mode of TEMP-4M accelerator which was mostly described in [4][5][6][7][8][9][10]. Usually, two types of dielectric anode inserts with a hole diameter of 12 mm were used: polyethylene 8 mm thick and h-BN 2-4 mm thick.…”

Section: Methodsmentioning

confidence: 99%

“…Thus, to estimate number and energy of high-energy protons collectively accelerated in a Luce diode, we studied the threshold reaction 11 B(p,n) 11 C (3.02 MeV), which make it possible to estimate the number of protons with an energy of higher than 3.1 MeV in a single shot [6]. The nToF spectrometer is calibrated by measuring the 11 C radioactivity induced in the refractory B4C targets.…”

Section: Tof Of Neutrons From Threshold Nuclear Reactionsmentioning

confidence: 99%

“…Such a configuration later received the common name "Luce diode", although some workers argue that the configuration was principally similar to the one used by Plyutto [3]. Our approach to studying the model of collective ion acceleration is to use nuclear analysis methods to diagnose ion bunches accelerated by a Luce diode operated in the same configuration of electrodes at moderate voltage values of about 250 kV [4][5][6][7][8][9][10]. At such voltages, on the one hand, accelerated ions are already capable of generating nuclear reactions in targets made of light elements, but, on the other hand, it is still possible to selectively excite the required analytical reactions and generate selective signals that can be unambiguously attributed to one or another group of accelerated protons and heavy ions (mainly 12 C ions).…”

Section: Introductionmentioning

confidence: 99%

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Prompt γ and neutron spectrometry of intense nanosecond ion bunches collectively accelerated in a Luce diode

Рыжков¹,

Pyatkov²

2022

8th International Congress on Energy Fluxes and Radiation Effects

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Instantaneous time-of-flight spectrometry of neutrons (nToF) and γ‑spectrometry from nuclear reactions generated by nanosecond proton and 12C ion bunches collectively accelerated in a Luce diode at a voltage across the diode of 200–300 kV has been thoroughly researched. A two-channel γ‑spectrometer with time resolution of 2.5 ns enables a prompt control of number and energy of collectively accelerated protons in their separate bunches dumped into a sustainable and refractory B4C target. Combination of nuclear reactions 10B(p,αγ)7Be, 12C(p,γ)13N, and 11B(p,γ)12C was used to characterize the intense nanosecond proton bunches with energy and number per shot in excess of 500–750 keV and 6∙1014, respectively. The radioactivity of 7Be and 13N radionuclides was measured with a conventional HP Ge detector to calibrate the prompt technique. The threshold nuclear reaction 11B(p,n)11C was used to perform nToF spectrometry of high-energy protons bunches with energy higher than 3.02 MeV, while 12C(d,n)13N and 2H(12C,n)13N reactions were used to control deuteron and 12C ion bunches.

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