서지주요정보
특성 선 스펙트럼 세기비교를 이용한 플라즈마내 전자온도 측정 = Electron temperature determination by line spectrum intensity ratio
서명 / 저자 특성 선 스펙트럼 세기비교를 이용한 플라즈마내 전자온도 측정 = Electron temperature determination by line spectrum intensity ratio / 이효석.
저자명 이효석 ; Yi, Hyo-Seok
발행사항 [대전 : 한국과학기술원, 1999].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8009941

소장위치/청구기호

학술문화관(문화관) 보존서고

MPH 99019

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

A spectroscopic method was developed to diagnose electron temperature by neutral line spectrum ratio in various plasmas such as inductively coupled plasma (ICP), electron cyclotron resonance heated (ECH) plasma, and ohmic tokamak plasma. Detailed modeling work was performed for helium and hydrogen plasmas including complicated secondary processes such as imprisonment effect, excitation from metastable states, and excitation transfer. The modeling result shows that the two particular line spectrum intensity ratio is a function of electrondensity and temperature from which temperature information can be obtained as electron density is known. Line ratios were measured with four different types of hydrogen or helium plasmas. For a hydrogen plasma, $H_α$ and $H_β$ lines were used, and 388.9 nm and 501.6 nm lines were chosen for helium case. For comparison with other diagnostics, Langmuir probe was used at the same time. and the electron temperature determined by the line ratio measurement indicates a resonable agreement with probe data. This suggests that the line ratio method can be utilized to obtain temporal evolution of electron temperature in not only low temperature plasmas such as ICP but also higher temperature tokamak plasmas.

서지기타정보

서지기타정보
청구기호 {MPH 99019
형태사항 v, 35 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Hyo-Seok Yi
지도교수의 한글표기 : 최원호
지도교수의 영문표기 : Won-Ho Choe
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 수록
주제 플라즈마 진단
전자온도
광학 방사 분석
Plasma diagnostics
Electron temperature
Optical emission spectroscopy
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