NDLI: Initiation of explosive emission centers assisted by laser ablation plasma

Content Provider	IEEE Xplore Digital Library
Author	Popov, S. Nefyodtsev, E. Proskurovsky, D. Uimanov, I.
Copyright Year	2010
Description	Author affiliation: Institute of High-Current Electronics SB RAS, Akademichesky Avenue 2/3, Tomsk 634055, Russia (Popov, S.; Nefyodtsev, E.; Proskurovsky, D.) \|\| Institute of Electrophysics, Ural Division, RAS, 620016, Ekaterinburg, Russia (Uimanov, I.)
Abstract	Ignition of explosive electron emission centers (ectons) is a great problem if operating voltages are rather low and vacuum conditions are clean. However, dense enough plasma adjoining directly to the cathode surface promotes new ectons to be ignited. The idea of the present work is an attempt of using laser ablation plasma to stimulate ignition of ectons. For tests, a gap formed by the ring anode and a single-wire cathode was located at the distance of about 1 cm from a target. High-voltage rectangular pulses of the amplitude 25–40 kV and the rise time about 3–4 ns were applied to the cathode synchronously with laser pulses. The paper presents results of experiments that are the ablation plasma parameters near the cathode and the statistics of successful ignition of ectons. As well, theoretical analysis of ecton initiation under actual experimental conditions is made and presented.
Starting Page	80
Ending Page	83
File Size	1378525
Page Count	4
File Format	PDF
ISBN	9781424483679
ISSN	10932941
e-ISBN	9781424483686
e-ISBN	9781424483662
DOI	10.1109/DEIV.2010.5625753
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-08-30
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cathodes Laser ablation Electric fields Discharges Anodes Plasma density
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Plasma initiation of an explosive emission center - ecton

Recycling of centers of explosive emission in a cathode spot of a vacuum arc

Nonself-sustaining arc discharge in anode material vapors

Fast switch with laser initiation

Control of the thermionic vacuum arc plasma

The high-current electron gun with plasma anode based on a combined discharge

Hybrid plasma source based simultaneously on laser ablation and vacuum arc discharge for plasma propulsion

The motion of cathode spot in self magnetic field of high current arc discharge

Plasma density decay of vacuum discharges after current zero

Initiation of explosive emission centers assisted by laser ablation plasma

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Plasma initiation of an explosive emission center - ecton

Recycling of centers of explosive emission in a cathode spot of a vacuum arc

Nonself-sustaining arc discharge in anode material vapors

Fast switch with laser initiation

Control of the thermionic vacuum arc plasma

The high-current electron gun with plasma anode based on a combined discharge

Hybrid plasma source based simultaneously on laser ablation and vacuum arc discharge for plasma propulsion

The motion of cathode spot in self magnetic field of high current arc discharge

Plasma density decay of vacuum discharges after current zero

Initiation of explosive emission centers assisted by laser ablation plasma