TY - GEN
T1 - Measurement of ion flux as a function of background gas pressure in a Hot Refractory Anode Vacuum Arc
AU - Beilis, I. I.
AU - Shashurin, A.
AU - Boxman, R. L.
PY - 2006
Y1 - 2006
N2 - The fraction of the ion flux in the radially expanding plasma flux was obtained in Hot Refractory Anode Vacuum Arc by measuring the ion current and the film deposition characteristics. Experiments were conducted with an arc current of 200 A, a molybdenum anode and an electrodes separation of about 10 mm. It was found that the collected ion current in vacuum increased about twice from the beginning of the arc (t<30 s) to developed HRAVA stage (t>50-60 s). The measured ion current in argon, nitrogen, and helium environments remained approximately constant with background gas pressure up to some critical pressure (15, 30, and 75 mTorr for argon, nitrogen and helium respectively), and then decreased with pressure eventually reaching zero. The ion fraction in total deposition flux was 0.6 in vacuum and decreased with nitrogen pressure except pressure range 10-100 mTorr where the local maximum about 0.8 was observed.
AB - The fraction of the ion flux in the radially expanding plasma flux was obtained in Hot Refractory Anode Vacuum Arc by measuring the ion current and the film deposition characteristics. Experiments were conducted with an arc current of 200 A, a molybdenum anode and an electrodes separation of about 10 mm. It was found that the collected ion current in vacuum increased about twice from the beginning of the arc (t<30 s) to developed HRAVA stage (t>50-60 s). The measured ion current in argon, nitrogen, and helium environments remained approximately constant with background gas pressure up to some critical pressure (15, 30, and 75 mTorr for argon, nitrogen and helium respectively), and then decreased with pressure eventually reaching zero. The ion fraction in total deposition flux was 0.6 in vacuum and decreased with nitrogen pressure except pressure range 10-100 mTorr where the local maximum about 0.8 was observed.
UR - http://www.scopus.com/inward/record.url?scp=46649098911&partnerID=8YFLogxK
U2 - 10.1109/DEIV.2006.357307
DO - 10.1109/DEIV.2006.357307
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AN - SCOPUS:46649098911
SN - 1424401925
SN - 9781424401925
T3 - Proceedings - International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
SP - 364
EP - 367
BT - Proceedings of the 22nd International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
T2 - 22nd International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
Y2 - 25 September 2006 through 29 September 2006
ER -