Charge-exchange neutral-atom filling of ion diodes: Its effect on diode performance and A - K shorting
We present a model, supported by experimental evidence, showing how high-density charge-exchange neutral atoms (
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| Veröffentlicht in: | J. Appl. Phys.; (United States) 1981-04, Vol.52 (4), p.3004-3011 |
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| container_title | J. Appl. Phys.; (United States) |
| container_volume | 52 |
| creator | Prono, D. S. Ishizuka, H. Lee, E. P. Stallard, B. W. Turner, W. C. |
| description | We present a model, supported by experimental evidence, showing how high-density charge-exchange neutral atoms ( |
| doi_str_mv | 10.1063/1.329045 |
| format | Article |
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S. ; Ishizuka, H. ; Lee, E. P. ; Stallard, B. W. ; Turner, W. C.</creator><creatorcontrib>Prono, D. S. ; Ishizuka, H. ; Lee, E. P. ; Stallard, B. W. ; Turner, W. C. ; Lawrence Livermore National Laboratory, Livermore, California 94550</creatorcontrib><description>We present a model, supported by experimental evidence, showing how high-density charge-exchange neutral atoms (<10 keV) are created in a partially ionized anode plasma and flow into an ion-diode, anode-cathode (A-K) gap. The buildup of the neutral atoms in the A-K gap and their ionization can cause early A-K shorting which limits high-power and/or long-pulse, ion-diode operation. Ways to avoid the charge-exchange phenomena are mentioned. The ability to produce large-pulsed fluxes of energetic neutrals may have unique applications of its own. For example, high rep-rate spark gaps could benefit from the reduced gas load of an injected short pulse of high-density neutral atoms. Also discussed is the possibility of using an ion-diode geometry to fill a spark-gap cavity with neutrals and then initiate total volume breakdown by ion-impact ionization, thereby avoiding inductive electron filaments.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.329045</identifier><language>eng</language><publisher>United States</publisher><subject>640301 - Atomic, Molecular & Chemical Physics- Beams & their Reactions ; ANODES ; ATOMS ; CATHODES ; CHARGE DENSITY ; CHARGE EXCHANGE ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; DIODE TUBES ; ELECTRODES ; ELECTRON TUBES ; ENERGY RANGE ; ION SOURCES ; IONIZATION ; KEV RANGE ; MATHEMATICAL MODELS ; PLASMA ; PULSES</subject><ispartof>J. Appl. 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C.</creatorcontrib><creatorcontrib>Lawrence Livermore National Laboratory, Livermore, California 94550</creatorcontrib><title>Charge-exchange neutral-atom filling of ion diodes: Its effect on diode performance and A - K shorting</title><title>J. Appl. Phys.; (United States)</title><description>We present a model, supported by experimental evidence, showing how high-density charge-exchange neutral atoms (<10 keV) are created in a partially ionized anode plasma and flow into an ion-diode, anode-cathode (A-K) gap. The buildup of the neutral atoms in the A-K gap and their ionization can cause early A-K shorting which limits high-power and/or long-pulse, ion-diode operation. Ways to avoid the charge-exchange phenomena are mentioned. The ability to produce large-pulsed fluxes of energetic neutrals may have unique applications of its own. For example, high rep-rate spark gaps could benefit from the reduced gas load of an injected short pulse of high-density neutral atoms. 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Phys.; (United States)</jtitle><date>1981-04-01</date><risdate>1981</risdate><volume>52</volume><issue>4</issue><spage>3004</spage><epage>3011</epage><pages>3004-3011</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><abstract>We present a model, supported by experimental evidence, showing how high-density charge-exchange neutral atoms (<10 keV) are created in a partially ionized anode plasma and flow into an ion-diode, anode-cathode (A-K) gap. The buildup of the neutral atoms in the A-K gap and their ionization can cause early A-K shorting which limits high-power and/or long-pulse, ion-diode operation. Ways to avoid the charge-exchange phenomena are mentioned. The ability to produce large-pulsed fluxes of energetic neutrals may have unique applications of its own. For example, high rep-rate spark gaps could benefit from the reduced gas load of an injected short pulse of high-density neutral atoms. Also discussed is the possibility of using an ion-diode geometry to fill a spark-gap cavity with neutrals and then initiate total volume breakdown by ion-impact ionization, thereby avoiding inductive electron filaments.</abstract><cop>United States</cop><doi>10.1063/1.329045</doi><tpages>8</tpages></addata></record> |
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| identifier | ISSN: 0021-8979 |
| ispartof | J. Appl. Phys.; (United States), 1981-04, Vol.52 (4), p.3004-3011 |
| issn | 0021-8979 1089-7550 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_329045 |
| source | AIP Digital Archive |
| subjects | 640301 - Atomic, Molecular & Chemical Physics- Beams & their Reactions ANODES ATOMS CATHODES CHARGE DENSITY CHARGE EXCHANGE CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS DIODE TUBES ELECTRODES ELECTRON TUBES ENERGY RANGE ION SOURCES IONIZATION KEV RANGE MATHEMATICAL MODELS PLASMA PULSES |
| title | Charge-exchange neutral-atom filling of ion diodes: Its effect on diode performance and A - K shorting |
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