2008
DOI: 10.1063/1.2887922
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High-current electron beam generation in a diode with a multicapillary dielectric cathode

Abstract: Articles you may be interested inEmittance of short-pulsed high-current ion beams formed from the plasma of the electron cyclotron resonance discharge sustained by high-power millimeter-wave gyrotron radiation Rev. Sci. Instrum. 85, 023307 (2014); 10.1063/1.4866651High-current long-duration uniform electron beam generation in a diode with multicapillary carbon-epoxy cathode

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Cited by 16 publications
(9 citation statements)
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“…Single carbon fibers, carbon fabric, and carbon fiber bundles have each been individually tested to confirm the plasma formation process coincides with electron emission and quantify the time delay associated with the applied electric field. 1, 12 Many varieties of non-fabric cathodes have also been diagnosed optically, these include ferroelectric materials, [13][14][15] multicapillary dielectric cathodes, 16 carbon nanotube cathodes, 10 and carbon-epoxy cathodes. 17,18 The emission of carbon-epoxy cathodes has been compared in detail to velvet, carbon, and aluminum cathodes 17 indicating longer lifetimes of the carbon-epoxy cathodes at higher current densities.…”
Section: Introductionmentioning
confidence: 99%
“…Single carbon fibers, carbon fabric, and carbon fiber bundles have each been individually tested to confirm the plasma formation process coincides with electron emission and quantify the time delay associated with the applied electric field. 1, 12 Many varieties of non-fabric cathodes have also been diagnosed optically, these include ferroelectric materials, [13][14][15] multicapillary dielectric cathodes, 16 carbon nanotube cathodes, 10 and carbon-epoxy cathodes. 17,18 The emission of carbon-epoxy cathodes has been compared in detail to velvet, carbon, and aluminum cathodes 17 indicating longer lifetimes of the carbon-epoxy cathodes at higher current densities.…”
Section: Introductionmentioning
confidence: 99%
“…Sistem iradiator elektron berbasis SEKP ini diharapkan dapat memberikan arus pulsa berkas elektron 50 -100 A dan dalam luasan keluaran 15  60 cm 2 . Iradiator elektron yang dapat menghasilkan keluaran berkas elektron dengan tampang-lintang luas dan arus berkas yang tinggi dapat diaplikasikan dalam teknologi radiasi, dalam modifikasi permukaan untuk struktur materi, dalam pemompaan media aktif gas laser dan dalam bidang-bidang lainnya (3)(4)(5)(6)(7) .…”
Section: Pendahuluanunclassified
“…Berdasarkan Plasma yang terbentuk di dalam sistem elektrode generator plasma berbentuk silinder dapat diketahui kerapatan elektron plasmanya jika nilai arus plasma lucutan busur dapat ditentukan. Berdasarkan persamaan (3) dapat ditentukan kerapatan elektron di dalam plasma yang terbentuk, dan dengan memasukkan nilai Q = ilb   = (103,15)(96  10 -6 ) = 9,902  10 -3 C, jari-jari silinder bejana generator plasma rs = 2,0  10 -2 m, panjang silinder bejana generator plasma ls = 48,75  10 -2 m, diperoleh nilai kerapatan elektron plasma dalam bejana generator plasma ne = 10,12  10 19 elektron/m 3 = 10,12  10 13 elektron/cm 3 . Menurut Oks (5) untuk plasma dalam suatu sumber elektron, pada umumnya kerapatannya sekitar 10 9 -10 12 cm -3 , karena sebagai persyaratan untuk terbentuknya berkas elektron yang baik.…”
Section: Hasil Dan Pembahasanunclassified
“…banyak digunakan dalam teknologi radiasi, modifikasi permukaan bahan struktural, dan dalam sistem pemompaan media aktif laser gas, serta juga dimanfaatkan di bidang-bidang lainnya (1)(2)(3)(4) .…”
unclassified