https://scholar.dgist.ac.kr/handle/20.500.11750/10190 Sat, 04 Apr 2026 14:20:22 GMT 2026-04-04T14:20:22Z https://scholar.dgist.ac.kr/handle/20.500.11750/56817 Title: STRONG DISCHARGE PROCESSES BY ATMOSPHERIC PLASMA JET A AY WITHOUT EXTERNAL GROUND ELECTRODE Author(s): Kim, Jae Young; Lee, Sun Young; Shin, Mi Hyang; Moon, Dae Won; Tae, Heung-Sik Abstract: We previously reported an intense plasma emission formed by plasma jet-to-jet coupling from various circular array configurations at atmospheric pressure 1,2 . To achieve an intense plasma emission using plasma jet-to-jet coupling, the plasma array device required a single electrode configuration and external ground electrode located several centimeters apart from the array 1 . In spite of an intense plasma plume with a lot of reactive radicals in ambient air, the requirement of precise adjustment of the discharge distance between the plasma array and the counter electrode would be a drawback of the plasma jet array for various surface treatments at atmospheric pressure. To generate an intense plasma plume with a good stability regardless of the discharge distance, we now propose two different plasma array structures to eliminate a counter ground electrode.The first plasma array device consists of a central glass tube encircled by an array of hollow glass tubes with side openings. The device configuration forces the individual plasma jets emanating from the side openings of the outer tubes to merge with the central plasma plume. As a result, a high intensity plasma emission is stably produced from the plasma jet-to-jet coupling of the ten glass tubes regardless of the distance between the plasma array and the external ground electrode, thereby eliminating the need for an external ground electrode. The second proposed plasma array structure consisting of two plasma jet arrays with an appropriate angle and a double electrode configuration is used as an ambient plasma source. Since these proposed plasma devices are able to generate an intense plasma emission without external ground electrode, they are promising tools for surface treatments and modifications that require a strong discharge process such as an ambient ionization mass spectrometry, regardless of the dielectric property of the target material. Sat, 23 May 2015 15:00:00 GMT https://scholar.dgist.ac.kr/handle/20.500.11750/56817 2015-05-23T15:00:00Z https://scholar.dgist.ac.kr/handle/20.500.11750/47276 Title: 대기압 질량분석 이미징 기술을 위한 나노입자를 이용한 레이저 탈착 성능 향상 Author(s): 김재영; 서은석; 문대원 Tue, 14 Feb 2017 15:00:00 GMT https://scholar.dgist.ac.kr/handle/20.500.11750/47276 2017-02-14T15:00:00Z