Generation of pulsed proton beams in a vacuum diode with a passive anode; Vacuum; Vol. 216
| Parent link: | Vacuum.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 216.— 2023.— Artical number 112400, 8 p. |
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| Institution som forfatter: | |
| Andre forfattere: | , , , , |
| Summary: | Title screen The paper presents the results of a study of a pulsed proton beam generated of in a diode with a metal anode (stainless steel, titanium, and copper) operating in bipolar-pulse mode. The experiments were carried out on the TEMP-6 accelerator (250–300 kV, 120 ns) with a focusing diode geometry in a mode of self-magnetic insulation of electrons. For analysis of the ion beam parameters, we used the infrared imaging diagnostics of the beam energy density (spatial resolution of 2 mm) and the time-of-flight diagnostics of the beam compositions (time resolution 1 ns). It was found that with continuous supply of hydrogen into a hollow anode (with holes on the working surface) and a hydrogen pressure in the diode chamber of 30–80 mPa, the proton content in the beam exceeds 80%. An increase in the first pulse duration leads to an increase in the ion current density up to 100 A/cm2 and the energy density at the focus up to 3 J/cm2. We analyzed various mechanisms of proton beam generation: ions acceleration from the gas plasma in the plasma erosion mode; ions acceleration from the explosive emission plasma of a metal anode the near-surface layer of which is saturated with metal hydrides (anode material). It was found that hydrogen embrittlement of the near-surface layer of the anode occurs during the injection of hydrogen, and during the explosive emission of electrons, part of the material is sprayed in the form of finely dispersed clusters Текстовый файл |
| Sprog: | engelsk |
| Udgivet: |
2023
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| Fag: | |
| Online adgang: | https://doi.org/10.1016/j.vacuum.2023.112400 |
| Format: | Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=672744 |
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| 200 | 1 | |a Generation of pulsed proton beams in a vacuum diode with a passive anode |f A. I. Pushkarev. Zhu Xiaopeng, Yu. I. Egorova [et al.] | |
| 203 | |a Текст |b визуальный |c электронный | ||
| 283 | |a online_resource |2 RDAcarrier | ||
| 300 | |a Title screen | ||
| 320 | |a References: 26 tit | ||
| 330 | |a The paper presents the results of a study of a pulsed proton beam generated of in a diode with a metal anode (stainless steel, titanium, and copper) operating in bipolar-pulse mode. The experiments were carried out on the TEMP-6 accelerator (250–300 kV, 120 ns) with a focusing diode geometry in a mode of self-magnetic insulation of electrons. For analysis of the ion beam parameters, we used the infrared imaging diagnostics of the beam energy density (spatial resolution of 2 mm) and the time-of-flight diagnostics of the beam compositions (time resolution 1 ns). It was found that with continuous supply of hydrogen into a hollow anode (with holes on the working surface) and a hydrogen pressure in the diode chamber of 30–80 mPa, the proton content in the beam exceeds 80%. An increase in the first pulse duration leads to an increase in the ion current density up to 100 A/cm2 and the energy density at the focus up to 3 J/cm2. We analyzed various mechanisms of proton beam generation: ions acceleration from the gas plasma in the plasma erosion mode; ions acceleration from the explosive emission plasma of a metal anode the near-surface layer of which is saturated with metal hydrides (anode material). It was found that hydrogen embrittlement of the near-surface layer of the anode occurs during the injection of hydrogen, and during the explosive emission of electrons, part of the material is sprayed in the form of finely dispersed clusters | ||
| 336 | |a Текстовый файл | ||
| 461 | 1 | |t Vacuum |c Amsterdam |n Elsevier Science Publishing Company Inc. | |
| 463 | 1 | |t Vol. 216 |v Artical number 112400, 8 p. |d 2023 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a pulsed protons beam | |
| 610 | 1 | |a metal anode | |
| 610 | 1 | |a explosive electron emission | |
| 610 | 1 | |a self-magnetic insulation | |
| 610 | 1 | |a time-of-flight diagnostics | |
| 610 | 1 | |a infrared imaging diagnostics | |
| 701 | 1 | |a Pushkarev |b A. I. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Senior researcher |f 1954- |g Aleksandr Ivanovich |9 16587 | |
| 701 | 0 | |a Zhu Xiaopeng | |
| 701 | 1 | |a Egorova |b Yu. I. |c physicist |c Associate Professor of Tomsk Polytechnic University, Candidate of Technical Sciences |f 1988- |g Yulia Ivanovna |9 21788 | |
| 701 | 1 | |a Polisadov |b S. S. |c specialist in the field of materials science |c research engineer at Tomsk Polytechnic Universit |f 1995- |g Svyatoslav Sergeevich |9 23066 | |
| 701 | 0 | |a Lei Ming Kai | |
| 712 | 0 | 2 | |a National Research Tomsk Polytechnic University |c (2009- ) |9 27197 |
| 801 | 0 | |a RU |b 63413507 |c 20240527 | |
| 850 | |a 63413507 | ||
| 856 | 4 | |u https://doi.org/10.1016/j.vacuum.2023.112400 |z https://doi.org/10.1016/j.vacuum.2023.112400 | |
| 942 | |c CR | ||