Investigation of Transverse Instability of a High-Current Relativistic Electron Beam in a Linear Induction Accelerator
E. S. Sandalov,
S. L. Sinitsky,
D. I. Skovorodin,
D. A. Nikiforov,
P. V. Logachev,
P. A. Bak,
K. I. Zhivankov,
E. K. Kenzhebulatov,
A. V. Petrenko,
O. A. Nikitin,
A. R. Akhmetov,
R. V. Protas,
S. D. Khrenkov,
I. A. Zhuravlev,
I. V. Penzin,
A. R. Don https://doi.org/10.25205/2541-9447-2022-17-1-5-22
Abstract
The article presents the results of studies on the transverse instability of a high-current relativistic electron beam developing in a linear induction accelerator LIA for 5 MeV electron energy, which is created at the BINP SB RAS together with RFNC VNIITF. These results were obtained using a software package that makes it possible to simulate the dynamics of the instability development, as well as to calculate the increment of this instability averaged over the accelerator length. The package consists of four main parts. The first of them, made on the base of a three-dimensional model of the accelerating module electrodynamic system of the LIA, allows calculating the main characteristics of electromagnetic dipole modes of such a module, the second and third parts are designed to find three-dimensional accelerating electric and focusing magnetic fields, respectively. In the last part of the package, a system of ordinary differential equations is solved that describes both the motion of beam macroparticles in electric and magnetic fields, including the eigenmode fields, and the excitation of the mode fields by the electron beam. The adequacy of the physical models used in the software package was tested by comparing the spectra of field oscillations in the accelerator modules obtained in calculations and recorded in the experiment. On the base of the data obtained, the main regularities of the transverse beam instability development in the frequency range ∆f = 0.3–1.1 GHz were revealed, and possible methods for suppressing this instability in the LIA were proposed.
Keywords
linear induction accelerator,
high-current relativistic electron beam,
beam transverse instability,
accelerator module,
dipole oscillations
Supporting agencies: The main part of the research was carried out at the Institute of Nuclear Physics SB RAS: the works described in sections 3.2 and 3.3 were supported by the Russian Science Foundation (project № 19-12-00212), and in other sections were supported by the Russian Foundation for Basic Research (project № 19-32-90057). Experiments with an electron beam at an energy of 5 MeV were carried out in collaboration with RFNC VNIITF
About the Authors
E. S. Sandalov
Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Russian Federation
Russian Federation
Evgeniy S. Sandalov, Post-Graduate Student
Novosibirsk
S. L. Sinitsky
Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Russian Federation
Russian Federation
Stanislav L. Sinitsky, Candidate of Sciences (Physics and Mathematics)
Novosibirsk
D. I. Skovorodin
Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Russian Federation
Russian Federation
Dmitry I. Skovorodin, Candidate of Sciences (Physics and Mathematics)
Novosibirsk
D. A. Nikiforov
Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Russian Federation
Russian Federation
Danila A. Nikiforov, Researcher
Novosibirsk
P. V. Logachev
Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Pavel V. Logachev, Doctor Sciences (Physics and Mathematics), Academician of the Russian Academy of Sciences
Novosibirsk
P. A. Bak
Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Petr A. Bak, Senior Researcher
Novosibirsk
K. I. Zhivankov
Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Kirill I. Zhivankov, Researcher
Novosibirsk
E. K. Kenzhebulatov
Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Ermek K. Kenzhebulatov, Researcher
Novosibirsk
A. V. Petrenko
Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Alexey V. Petrenko, Candidate of Sciences (Physics and Mathematics)
Novosibirsk
O. A. Nikitin
Federal State Unitary Enterprise “Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics”
Russian Federation
Russian Federation
Oleg A. Nikitin, Candidate of Sciences (Engineering)
Snezhinsk
A. R. Akhmetov
Federal State Unitary Enterprise “Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics”
Russian Federation
Russian Federation
Alexander R. Akhmetov, Senior Researcher
Snezhinsk
R. V. Protas
Federal State Unitary Enterprise “Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics”
Russian Federation
Russian Federation
Roman V. Protas, Candidate of Sciences (Physics and Mathematics)
Snezhinsk
S. D. Khrenkov
Federal State Unitary Enterprise “Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics”
Russian Federation
Russian Federation
Sergey D. Khrenkov, Researcher
Snezhinsk
I. A. Zhuravlev
Federal State Unitary Enterprise “Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics”
Russian Federation
Russian Federation
Igor A. Zhuravlev, Researcher
Snezhinsk
I. V. Penzin
Federal State Unitary Enterprise “Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics”
Russian Federation
Russian Federation
Iliya V. Penzin, Researcher
Snezhinsk
A. R. Don
Federal State Unitary Enterprise “Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics”
Russian Federation
Russian Federation
Anton R. Don, Researcher
Snezhinsk
References
1. Panofsky W. K. H., Bander M. Asymptotic theory of beam breakup in linear accelerators. Rev. Sci. Instrum., 1968, vol. 39, pp. 206–212.
2. Neil V. K., Hall L. S., Cooper R. K. Further theoretical studies of the beam breakup instability. Particle Accel., 1979, vol. 9, no. 4, pp. 213–222.
3. Ekdahl C., Coleman J. E., McCuistian B. T. Beam breakup in an advanced linear induction accelerator. IEEE Trans. Plasma Sci., 2016, vol. 44, no. 7, pp. 1094–1102. DOI 10.1109/TPS.2016.2571123
4. Logachev P., Kuznetsov G., Korepanov A. et al. LIU-2 linear induction accelerator. Instrum. Experim. Techn., 2013, vol. 56, no. 6, pp. 672–679. DOI 10.1134/S0020441213060195
5. Starostenko D. A., Logachev P. V., Akimov A. V. et al. Results of operating LIA-2 in radiograph mode. Phys. Particles Nuclei Lett., 2014, vol. 11, no. 5, pp. 660–664. DOI 10.1134/S1547477114050264
6. Nikiforov D. A., Blinov M. F., Fedorov V. V. et al. High-current electron-beam transport in the LIA5 linear induction accelerator. Phys. Particles Nuclei Lett., 2020, vol. 17, no. 2, pp. 197–203. DOI 10.1134/S1547477120020156
7. Sandalov E S., Sinitsky S. L., Burdakov A. V. et al. Electrodynamic System of the Linear Induction Accelerator Module. IEEE Trans. Plasma Sci., 2021, vol. 49, no. 2, pp. 718–728. DOI 10.1109/TPS.2020.3045345
8. Ekdahl C. Tuning the DARHT Long-Pulse Linear Induction Accelerator. IEEE Trans. Plasma Sci., 2013, vol. 41, no. 10, pp. 2774–2780. DOI 10.1109/TPS.2013.2256933
9. Ekdahl C. Electron-beam dynamics for an advanced flash-radiography accelerator. IEEE Trans. Plasma Sci., 2015, vol. 43, no. 12, pp. 4123–4129.
10. Ekdahl C., McCrady R. Suppression of Beam Breakup in Linear Induction Accelerators by Stagger Tuning. IEEE Trans. Plasma Sci., 2020, vol. 48, no. 10, pp. 3589–3599. DOI 10.1109/TPS.2020.3019999
11. Briggs R. J., Fawley W. Campaign to minimize the transverse impedance of the DARHT-2 induction linac cells. Lawence Berkeley Nat. Lab. Berkeley, CA, USA, 2002. Tech. Rep.LBNL-56796(Rev-1),
12. Walling L. et al. Transmission-line impedance measurements for an advanced hadron facility. Nucl. Instrum. Meth., 1989, vol. A281, pp. 433–447.
13. Flöttman K. ASTRA. Hamburg, DESY, 2000.
Review
For citations:
Sandalov E.S., Sinitsky S.L., Skovorodin D.I., Nikiforov D.A., Logachev P.V., Bak P.A., Zhivankov K.I., Kenzhebulatov E.K., Petrenko A.V., Nikitin O.A., Akhmetov A.R., Protas R.V., Khrenkov S.D., Zhuravlev I.A., Penzin I.V., Don A.R. Investigation of Transverse Instability of a High-Current Relativistic Electron Beam in a Linear Induction Accelerator. SIBERIAN JOURNAL OF PHYSICS. 2022;17(1):5-22. (In Russ.) https://doi.org/10.25205/2541-9447-2022-17-1-5-22
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