{"title":"多脉冲N/sub / 2激光瞬态等离子体的云纹偏转诊断","authors":"B. Moosman, V. Bystritskii, F. Wessel","doi":"10.1109/PPC.1995.599727","DOIUrl":null,"url":null,"abstract":"The authors have designed a multi-pulse laser system to measure nanosecond timescale, plasma-density gradients by moire/spl acute/ deflectometry. The complete system consists of four, transverse-excited, atmospheric pressure (TEA) N/sub 2/ laser oscillators and two low-pressure N/sub 2/ laser amplifiers; two oscillator pulses are injected into a single amplifier. The amplified pulses are less than a nanosecond in duration, with a variable, inter-pulse time of 4-10 nanoseconds. Described here, two TEA oscillators and a single amplifier were used to image air-density gradients in an expanding air-shock wave produced by a spark discharge.","PeriodicalId":11163,"journal":{"name":"Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference","volume":"8 1","pages":"903-910 vol.2"},"PeriodicalIF":0.0000,"publicationDate":"1995-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Moire deflectometry diagnostic for transient plasma using a multi-pulse N/sub 2/ laser\",\"authors\":\"B. Moosman, V. Bystritskii, F. Wessel\",\"doi\":\"10.1109/PPC.1995.599727\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The authors have designed a multi-pulse laser system to measure nanosecond timescale, plasma-density gradients by moire/spl acute/ deflectometry. The complete system consists of four, transverse-excited, atmospheric pressure (TEA) N/sub 2/ laser oscillators and two low-pressure N/sub 2/ laser amplifiers; two oscillator pulses are injected into a single amplifier. The amplified pulses are less than a nanosecond in duration, with a variable, inter-pulse time of 4-10 nanoseconds. Described here, two TEA oscillators and a single amplifier were used to image air-density gradients in an expanding air-shock wave produced by a spark discharge.\",\"PeriodicalId\":11163,\"journal\":{\"name\":\"Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference\",\"volume\":\"8 1\",\"pages\":\"903-910 vol.2\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1995-07-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PPC.1995.599727\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PPC.1995.599727","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Moire deflectometry diagnostic for transient plasma using a multi-pulse N/sub 2/ laser
The authors have designed a multi-pulse laser system to measure nanosecond timescale, plasma-density gradients by moire/spl acute/ deflectometry. The complete system consists of four, transverse-excited, atmospheric pressure (TEA) N/sub 2/ laser oscillators and two low-pressure N/sub 2/ laser amplifiers; two oscillator pulses are injected into a single amplifier. The amplified pulses are less than a nanosecond in duration, with a variable, inter-pulse time of 4-10 nanoseconds. Described here, two TEA oscillators and a single amplifier were used to image air-density gradients in an expanding air-shock wave produced by a spark discharge.
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