Investigation on current loss of high-power vacuum transmission lines with coaxial-disk transitions by particle-in-cell simulations

Wei LUO (罗伟); Jianwei ZHANG (张建威); Yongdong LI (李永东); Hongguang WANG (王洪广); Chunliang LIU (刘纯亮); Pengfei ZHANG (张鹏飞); Fan GUO (郭帆)

doi:10.1088/2058-6272/ac17e5

Plasma Science and Technology > 2021 > 23(11): 115601. > DOI: 10.1088/2058-6272/ac17e5

Wei LUO (罗伟), Jianwei ZHANG (张建威), Yongdong LI (李永东), Hongguang WANG (王洪广), Chunliang LIU (刘纯亮), Pengfei ZHANG (张鹏飞), Fan GUO (郭帆). Investigation on current loss of high-power vacuum transmission lines with coaxial-disk transitions by particle-in-cell simulations[J]. Plasma Science and Technology, 2021, 23(11): 115601. DOI: 10.1088/2058-6272/ac17e5

Citation:

PDF (1576 KB)

Investigation on current loss of high-power vacuum transmission lines with coaxial-disk transitions by particle-in-cell simulations

¹ Department of Applied Physics, Xi’an University of Technology, Xi’an 710048, People's Republic of China
² Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi’an 710049, People's Republic of China
³ State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, People's Republic of China
⁴ Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China

Funds: This work was supported by National Natural Science Foundation of China (Nos. U1530133 and 52007152), the Special Foundation of State Key Laboratory of Intense Pulsed Radiation Simulation and Effect (No. SKLIPR2005) and the Youth Innovation Team of Shaanxi Universities.

More Information

Received Date: January 11, 2021
Revised Date: July 21, 2021
Accepted Date: July 25, 2021

Graphical Abstract

Abstract

Abstract

Coaxial-disk transitions can generate non-uniform magnetic fields and abrupt impedance variations in magnetically insulated transmission lines (MITLs), resulting in disturbed electron flow and non-negligible current loss. In this paper, 3D particle-in-cell simulations are conducted with UNPIC-3d to investigate the current loss mechanism and the influence of the input parameters of the coaxial-disk transition on current loss in an MITL system. The results reveal that the magnetic field non-uniformity causes major current loss in the MITL after the coaxialdisk transition, and the non-uniformity decreases with the distance away from the transition. The uniformity of the magnetic field is improved when increasing the number of feed lines of a linear transformer driver-based accelerator with coaxial-disk transitions. The number of input feed lines should be no less than four in the azimuthal distribution to obtain acceptable uniformity of the magnetic field. To make the ratio of the current loss to the total current of the accelerator less than 2% at peak anode current, the ratio of the current in each feed line to the total current should be no less than 8%.
- magnetically insulated transmission line,
- coaxial-disk transition,
- current loss

FullText(HTML)

References (17)

References

[1]	Ruiz C L et al 2004 Phys. Rev. Lett. 93 015001
[2]	Gomez M R et al 2017 Phys. Rev. Accel. Beams 20 010401
[3]	Zou W K et al 2014 Phys. Rev. Accel. Beams 17 110401
[4]	Van Devender J P et al 2015 Phys. Rev. Accel. Beams 18 030401
[5]	Leckbee J J et al 2006 IEEE Trans. Plasma Sci. 34 1888
[6]	Mazarakis M G and Olson C L 2005 A new high current fast 100 ns LTD based driver for Z-pinch IFE at Sandia Proc.21st IEEE/NPS Symp. on Fusion Engineering SOFE 05 (Knoxville) (IEEE) 1–4
[7]	Langston W L and Pointon T D 2007 Reduction of electron flow current and localized anode energy deposition in transitions from coaxial feeds to a disk Proc. 2007 IEEE 34th Int. Conf. on Plasma Science (Albuquerque) (IEEE) 640–640
[8]	Zhou L et al 2016 Phys. Rev. Accel. Beams 19 030401
[9]	Chen L et al 2019 Phys. Rev. Accel. Beams 22 030401
[10]	Olson C L et al 2007 Recyclable transmission line (RTL) and linear transformer driver (LTD) development for Z-pinch inertial fusion energy (Z-IFE) and high yield Sandia Nat.Lab., Albuquerque, NM, Tech. Rep. SAND2007-0059
[11]	Zhang P F et al 2016 IEEE Trans. Plasma Sci. 44 1902
[12]	Luo W et al 2019 J. Appl. Phys. 125 163302
[13]	Mazarakis M G et al 1995 Design and code validation of the Jupiter inductive voltage adder (IVA) PRS driver Digest of Technical Papers. Tenth IEEE Int. Pulsed Power Conf.(Albuquerque) (IEEE) 528–33
[14]	Grabovski E V et al 2016 Plasma Phys. Rep. 42 773
[15]	Zou W K et al 2018 IEEE Trans. Plasma Sci. 46 1913
[16]	Wang J G et al 2010 Phys. Plasmas 17 073107
[17]	Rose D V et al 2015 Phys. Rev. ST Accel. Beams 18 030402

Cited By

Cited by

Periodical cited type(3)

1.	Luo, W., Wang, W., Qiang, L. et al. Theoretical Model and Particle-in-Cell Simulation of Vacuum Magnetically Insulated Electron Flow With Off-Centered Cross Section. IEEE Transactions on Electron Devices, 2023, 70(11): 5926-5933. DOI:10.1109/TED.2023.3316135
2.	Zhang, P., Lai, D., Yang, H. et al. Fast Time Response Full Absorption Faraday Cup and Its Application in the Measurement of Intensive Electron Beam Diodes. Energies, 2023, 16(2): 669. DOI:10.3390/en16020669
3.	Xu, M., Wang, Y., Liu, C. et al. Photoexcited carrier dynamics in a GaAs photoconductive switch under nJ excitation. Plasma Science and Technology, 2022, 24(7): 075503. DOI:10.1088/2058-6272/ac5af8

Other cited types(0)

Get Citation

PDF

XML

Article views (123) PDF downloads (116) Cited by(3)

Turn off MathJax

Article Contents

Abstract

References

Investigation on current loss of high-power vacuum transmission lines with coaxial-disk transitions by particle-in-cell simulations

Abstract

References

Cited by

Periodical cited type(3)

Other cited types(0)

Catalog

Export File

Citation

Format

Content