光谱学与光谱分析
光譜學與光譜分析
광보학여광보분석
SPECTROSCOPY AND SPECTRAL ANALYSIS
2009年
12期
3208-3211
,共4页
冉俊霞%李霞%张少朋%董丽芳
冉俊霞%李霞%張少朋%董麗芳
염준하%리하%장소붕%동려방
光谱学%Stark加宽%微场分布晒数%光谱诊断
光譜學%Stark加寬%微場分佈曬數%光譜診斷
광보학%Stark가관%미장분포쇄수%광보진단
Spectroscopy%Stark Broadening%Microfield distribution function%Spectral diagnosis
分别采用Holtsmark,Neutral Point,Nearest-Neighbor和Mayer模犁微场分布函数对Stark线型进行了研究,进而得到相应微场函数下的Stark加宽和频移,研究了4种不同的微场分布函数对Stark加宽和频移的影响.研究结果表明,在电子加宽参数不变时,4种微场分布函数对stark加宽和频移的影响随离子加宽参数的增加而增加;在离子加宽参数不变时,4种微场分布甬数对Stark加宽和频移的影响随电子加宽参数的增加而增加;特别是,当离子加宽参数较大时,Mayer模型微场分布函数对Stark加宽和频移的影响异常明显.这说明,微场分布函数对谱线的加宽和频移的影响在离子与离子碰撞剧烈的等离子体环境中尤其显著,在这样的等离子体环境中,进行等离子体诊断时,选择合适的微场分布函数非常重要.结果对等离子体诊断有一定参考价值.
分彆採用Holtsmark,Neutral Point,Nearest-Neighbor和Mayer模犛微場分佈函數對Stark線型進行瞭研究,進而得到相應微場函數下的Stark加寬和頻移,研究瞭4種不同的微場分佈函數對Stark加寬和頻移的影響.研究結果錶明,在電子加寬參數不變時,4種微場分佈函數對stark加寬和頻移的影響隨離子加寬參數的增加而增加;在離子加寬參數不變時,4種微場分佈甬數對Stark加寬和頻移的影響隨電子加寬參數的增加而增加;特彆是,噹離子加寬參數較大時,Mayer模型微場分佈函數對Stark加寬和頻移的影響異常明顯.這說明,微場分佈函數對譜線的加寬和頻移的影響在離子與離子踫撞劇烈的等離子體環境中尤其顯著,在這樣的等離子體環境中,進行等離子體診斷時,選擇閤適的微場分佈函數非常重要.結果對等離子體診斷有一定參攷價值.
분별채용Holtsmark,Neutral Point,Nearest-Neighbor화Mayer모리미장분포함수대Stark선형진행료연구,진이득도상응미장함수하적Stark가관화빈이,연구료4충불동적미장분포함수대Stark가관화빈이적영향.연구결과표명,재전자가관삼수불변시,4충미장분포함수대stark가관화빈이적영향수리자가관삼수적증가이증가;재리자가관삼수불변시,4충미장분포용수대Stark가관화빈이적영향수전자가관삼수적증가이증가;특별시,당리자가관삼수교대시,Mayer모형미장분포함수대Stark가관화빈이적영향이상명현.저설명,미장분포함수대보선적가관화빈이적영향재리자여리자팽당극렬적등리자체배경중우기현저,재저양적등리자체배경중,진행등리자체진단시,선택합괄적미장분포함수비상중요.결과대등리자체진단유일정삼고개치.
The Stark broadening and Stark shift were described with different electric microfield distribution functions. These microfield distribution functions include Holtsmark, Neutral Point, Nearest-Neighbor and Mayer model microfield distribution function. The Stark profiles with four microfield distribution functions were studied and the Stark broadening and Stark shift were obtained from the Stark profiles to study the influence of different electric microfield distribution functions on Stark broade-ning and Stark shift. The results show that the influence of different electric microfield distribution functions on Stark broadening and Stark shift increases with the plasma ions impact parameter with the same electrons impact broadening parameter. With the increase in the plasma electrons impact parameter the influence of different electric microfield distribution functions increases with the same ion impact broadening parameter. Especially, the influence of Mayer model electric microfield distribution function is very distinct when the ion impact broadening parameter is larger. It is illuminated that the plasma ions intense impact has great influence on the spectral line profile. It is very important for the plasma diagnosis to select appropriate electric microfield distri-bution function. The results have important reference for the plasma diagnosis.