스파크 유도 플라즈마 분광 시스템을 이용한 우주탐사용 암석 분석연구

국문 초록 (Abstract)

스파크 유도 플라즈마 분광법 (SIBS)은 전기 스파크를 사용하여 강력한 플라즈마를 유도한 후 원자 방출 스펙트럼 신호를 수집하는 방법이다. 이 연구는 우주 탐사에 활용되는 기존의 레이저 유도 분해 분광법 (LIBS) 대신 SIBS를 사용할 수 있는지의 잠재력을 보기 위해 진행되었다. 과거에는 SIBS를 사용하여 부피가 큰 고체 샘플을 대상으로 실험하는 것이 성공적이지 않았기 때문에, 본 연구에서는 전극 위치 및 전극 재료의 SIBS의 최적화 연구가 수행되었다. LIBS를 사용할 때에 비해 SIBS의 검출 한계 (LOD)가 78에서 20ppm으로 최대 4배 향상되어 있음을 볼 수 있었다. 생성된 플라즈마의 더 높은 에너지로 인해, SIBS에 의한 신호 세기는 동일한 분광계 설정에서 LIBS보다 3배 정도 높았다.

다국어 초록 (Multilingual Abstract)

Spark-induced breakdown spectroscopy (SIBS) utilizes an electric spark to induce a strong plasma for collecting atomic emissions. This study analyses the potential for usinga compact SIBS instead of conventional laser-induced breakdown spectroscopy (LIBS) in discriminating rocks and soils for planetary missions. Targeting bulky solids using SIBS has not been successful in the past, and therefore a series of optimizations of electrode positioning and electrode materials were performed in this work. The limit of detection (LOD) was enhanced up to four times compared to when LIBS was used, showing a change from 78 to 20 ppm from LIBS to SIBS. Because of the higher energy of plasma generated, the signal intensity by SIBS was higher than LIBS in three orders of magnitude with the same spectrometer setup. Changing the electrode material and locating the optimum position of the electrodes were considered for optimizing the current SIBS setup being tested for samples of planetary origin.

목차 (Table of Contents)

• ABSTRACT
• 초록
• Ⅰ. 서론
• Ⅱ. 스파크 유도 분광법 분석 원리 및 방법
• Ⅲ. 결론
• References

참고문헌 (Reference)

1 Dong, D. M., "Ultrasensitive nanoparticle enhanced laserinduced breakdown spectroscopy using a super-hydrophobic substrate coupled with magnetic confinement" 53 : 4546-4549, 2017

2 Wang, Y., "Triggered parallel discharge in laser-ablation spark-induced breakdown spectroscopy and studied on its analytical performance for aluminum and brass sample" 150 : 9-17, 2018

3 Boumans, P. W., "Theory of Spectrochemical Excitation" Springer 1966

4 Liu, P., "Study of spark discharge assisted to enhancement of laser-induced breakdown spectroscopic detection for metal materials" 38 : 803-816, 2018

5 Popov, A. M., "Spatial confinement of laser-induced plasma to enhance LIBS sensitivity for trace elements determination in soils" 25 : 837-848, 2010

6 Kammermann, T., "Spark-induced breakdown spectroscopy of methane/ air and hydrogen-enriched methane/air mixtures at engine relevant conditions" 148 : 152-164, 2018

7 Hunter, A. J. R., "Spark-induced breakdown spectroscopy : a new technique for monitoring heavy metals" 54 (54): 575-582, 2000

8 Huner, A. J. R., "Spark-induced breakdown psectroscopy: a description of an electrically generated LIBS-like process for elemental analysis of airborne parti- culates and solid samples" Cambridge University Press 585-614, 2006

9 Yao, S., "Real-time measurement of constituents in solid materials using particle flow spark induced break-down spectroscopy" 33 : 986-991, 2018

10 Hunter, A. J. R., "Rapid field screening of soils for heavy metals with spark induced breakdown spectroscopy" 42 (42): 2102-2109, 2003

11 Catling, D. C., "On Earth, as it is on Mars?" 429 : 707-708, 2004

12 Choi, S. J., "Laser-induced plasma peculiarity at low pressures from the elemental lifetime perspective" 19 (19): 23097-23103, 2011

13 Hahn, D. W., "Laser-induced breakdown spectroscopy(LIBS), part I review of basic diagnostics and plasma-particle interactions : still-challenging issues within the analytical plasma community" 64 (64): 333-366, 2010

14 Miziolek, A, "Laser-induced Breakdown Spectroscopy (LIBS): Fundamentals and Applications" Cambridge University Press 2006

15 Mussazzi, S. Z., "Laser- induced Breakdown Spectroscopy: Theory and Applications" Springer 377-410, 2014

16 He, X. B., "Femtosecond laser-ablation spark-induce breakdown spectroscopy and its application to the elemental analysis of aluminum alloys" (12) : 2018

17 Vega, C. G., "Evaluation of the temporal profiles and the analytical features of a laser ablation-pulsed glow discharge coupling for optical emission spectrometry" 121 : 47-54, 2016

18 Scaffidi, J., "Emission enhancement mechanisms in dualpulse LIBS" 78 : 24-32, 2006

19 Yang, J. H., "Double-pulse laser synchronization aimed at simultaneous detection of enhanced atomic and molecular signals at low pressure conditions" 157 : 2019

20 Rosenwasser, S., "Development of a method for automated quanti-tative analysis of ores using LIBS" 56 (56): 707-714, 2001

21 Taefi, N., "Determination of elemental composition of cement powder by Spark induced breakdown spectroscopy" 40 (40): 1114-1119, 2010

22 Srungaram, P. K., "Comparison of laser induced breakdown spectroscopy and spark induced breakdown spectroscopy for determination of mercury in soils" 87 : 108-113, 2013

23 Letty, C., "Comparison of electrical and laser spark emision spectroscopy for fuel concentration measurements" 34 (34): 338-345, 2010

24 Maurice, S., "ChemCam activities and discoveries during the nominal mission of the Mars science Laboratory in Gale crater, Mars" 31 : 863-889, 2016

25 Christensenm, P. R., "A thermal emission spectral library of rock-forming minerals" 105 : E4-, 2000

26 Hassanimatin, M. M., "A combination of electrical spark and laswer-induced breakdown spectroscopy on a headed sample" 26 (26): 033-303, 2019