Design of electron gun for electron beam irradiation of vertical graphene

Zhang Xiaoning; He Jialong; Zhao Wei; Qin Zhen; Shi JinShui

doi:10.11884/HPLPB202537.240284

Volume 37 Issue 4

Mar. 2025

Turn off MathJax

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2025 > 37(4): 045005

Zhang Xiaoning, He Jialong, Zhao Wei, et al. Design of electron gun for electron beam irradiation of vertical graphene[J]. High Power Laser and Particle Beams, 2025, 37: 045005. doi: 10.11884/HPLPB202537.240284

Citation:

Zhang Xiaoning, He Jialong, Zhao Wei, et al. Design of electron gun for electron beam irradiation of vertical graphene[J]. High Power Laser and Particle Beams, 2025, 37: 045005. doi: 10.11884/HPLPB202537.240284

Citation:

PDF( 7234 KB)

Design of electron gun for electron beam irradiation of vertical graphene

doi: 10.11884/HPLPB202537.240284

Zhang Xiaoning^{1, 2
,},
He Jialong^{2
,
,},
Zhao Wei²,
Qin Zhen²,
Shi JinShui²

1.
Department of Radiotherapy, Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu 610041, China
2.
Institute of Fluid Physics, CAEP, Mianyang 621900, China

Received Date: 2024-08-27
Accepted Date: 2025-03-26
Rev Recd Date: 2025-03-26

Available Online: 2025-04-02

Publish Date: 2025-04-15

Abstract

Abstract

Numerous studies have demonstrated that vertical graphene coatings on material surfaces can significantly reduce the secondary electron yield, with the maximum secondary electron yield typically occurring at incident electron energies in the range of hundreds of electron volts. Under actual electron beam irradiation conditions, the microstructure of vertical graphene undergoes complex dynamic evolution processes. These structural changes exhibit diverse characteristic patterns, leading to varying degrees of alteration in secondary electron emission properties, with distinct underlying mechanisms. To systematically investigate the influence of electron beam irradiation parameters on the microstructural evolution of vertical graphene and its secondary electron emission characteristics, employing a combined approach of theoretical simulation and experimental verification, this study has independently designed and developed a dedicated electron beam irradiation system specifically for vertical graphene research.
- electron beam irradiation,
- electron gun,
- hot cathode,
- beam spot test,
- vertical graphene

FullText(HTML)

References(16)

References

[1]	Cimino R, Collins I R, Furman M A, et al. Can low-energy electrons affect high-energy physics accelerators?[J]. Physical Review Letters, 2004, 93: 014801. doi: 10.1103/PhysRevLett.93.014801
[2]	何佳龙, 陈思富, 张篁, 等. 神龙二号加速器绝缘环真空沿面闪络[J]. 强激光与粒子束, 2016, 28:095101 doi: 10.11884/HPLPB201628.150950 He Jialong, Chen Sifu, Zhang Huang, et al. Vacuum flashover of Dragon-Ⅱ accelerator insulator ring[J]. High Power Laser and Particle Beams, 2016, 28: 095101 doi: 10.11884/HPLPB201628.150950
[3]	Ecoffet R. Overview of In-orbit radiation induced spacecraft anomalies[J]. IEEE Transactions on Nuclear Science, 2013, 60(3): 1791-1815.
[4]	何友辉, 陈洪斌, 李飞, 等. 固体绝缘子的真空沿面闪络研究[J]. 强激光与粒子束, 2023, 35:035004 doi: 10.11884/HPLPB202335.220214 He Youhui, Chen Hongbin, Li Fei, et al. Review of surface flashover and surface charge behavior of vacuum insulators[J]. High Power Laser and Particle Beams, 2023, 35: 035004 doi: 10.11884/HPLPB202335.220214
[5]	Montero I, Aguilera L, Dávila M E, et al. Secondary electron emission under electron bombardment from graphene nanoplatelets[J]. Applied Surface Science, 2014, 291: 74-77.
[6]	He Jialong, Yang Jie, Peng Yufei, et al. Measurement of yield and spectrum of secondary electron emission and their characteristics under modification of conductive materials[J]. Review of Scientific Instruments, 2019, 90: 063304.
[7]	Lee S W, Baik Y J, Kang C J, et al. Suppression of secondary electrons from diamond by whisker formation[J]. Applied Surface Science, 2003, 215(1/4): 265-268.
[8]	Patino M, Raitses Y, Wirz R. Secondary electron emission from plasma-generated nanostructured tungsten fuzz[J]. Applied Physics Letters, 2016, 109: 201602.
[9]	Zhou Yangbo, Jadwiszczak J, Keane D, et al. Programmable graphene doping via electron beam irradiation[J]. Nanoscale, 2017, 9(25): 8657-8664.
[10]	Teweldebrhan D, Balandin A A. Modification of graphene properties due to electron-beam irradiation[J]. Applied Physics Letters, 2009, 94: 013101. doi: 10.1063/1.3062851
[11]	Childres I, Jauregui L A, Foxe M, et al. Effect of electron-beam irradiation on graphene field effect devices[J]. Applied Physics Letters, 2010, 97: 173109. doi: 10.1063/1.3502610
[12]	Hossain Z, Rumyantsev S, Shur M S, et al. Reduction of 1/f noise in graphene after electron-beam irradiation[J]. Applied Physics Letters, 2013, 102: 153512. doi: 10.1063/1.4802759
[13]	Liu Guanxiong, Teweldebrhan D, Balandin A A. Tuning of graphene properties via controlled exposure to electron beams[J]. IEEE Transactions on Nanotechnology, 2011, 10(4): 865-870. doi: 10.1109/TNANO.2010.2087391
[14]	Kim H, Park W, Nam K, et al. Effects of electron beam irradiation on the friction and work function of the wrinkled graphene[J]. Current Applied Physics, 2019, 19(11): 1172-1176. doi: 10.1016/j.cap.2019.07.013
[15]	He Y H, Wang L, Chen X L, et al. Modifying electronic transport properties of graphene by electron beam irradiation[J]. Applied Physics Letters, 2011, 99: 033109. doi: 10.1063/1.3615294
[16]	Thiele C, Felten A, Echtermeyer T J, et al. Electron-beam-induced direct etching of graphene[J]. Carbon, 2013, 64: 84-91. doi: 10.1016/j.carbon.2013.07.038