H- production in a small multicusp ion source with addition of barium

Walther, S. R.; Leung, K. N.; Kunkel, W. B.
January 1989
Applied Physics Letters;1/16/1989, Vol. 54 Issue 3, p210
Academic Journal
The effect on H- production by adding barium to a hydrogen discharge, in a small magnetically filtered multicusp ion source, has been investigated. It is found that the addition of barium can increase the H- output by a factor of 30. A strong dependence of H- output on the temperature of the ion source wall has also been observed.


Related Articles

  • Mechanism for the influence of the geometric parameters on the electrical characteristics of Penning ion sources. Babertsyan, R. P.; Badalyan, É. S.; Egiazaryan, G. A.; Ter-Gevorkyan, É. I. // Technical Physics;Sep98, Vol. 43 Issue 9, p1035 

    A steady-state Penning ion source is studied experimentally. Depending on the geometric parameter l[sub a] (the anode length to diameter ratio) and pressure, maxima are observed in the discharge current and in the ion beam current extracted from an aperture at the center of the cathode. It is...

  • Antenna coupling study for ICWC plasma characterization in TEXTOR. PAUL, MANASH; LYSSOIVAN, A; KOCH, R; WASSENHOVE, G; VERVIER, M; BERTSCHINGER, G; LAENGNER, R; UNTERBERG, B; SERGIENKO, G; PHILIPPS, V; WAUTERS, T // Pramana: Journal of Physics;Jan2013, Vol. 80 Issue 1, p121 

    Ion cyclotron wall conditioning (ICWC) discharges, in pulsed-mode operation, were carried out in the limiter tokamak TEXTOR to explore safe operational regimes for the experimental parameters for possible ICWC-discharge cleaning in International Thermonuclear Experimental Reactor (ITER) at half...

  • Diagnostics of a negative hydrogen ion source based on a planar-coil inductively-driven discharge. Lishev, Stiliyan St.; Shivarova, Antonia P.; Iordanov, Dimitar I.; Todorov, Dimitar T.; Demerdzhiev, Angel P. // AIP Conference Proceedings;Feb2013, Vol. 1515 Issue 1, p270 

    Recent activity on a volume-production negative-hydrogen-ion source with the design of a matrix of small-radius discharges inductively driven by a planar coil is reported. A single discharge of the matrix has been studied by employing probe-and laser-photodetachment diagnostics. The measurements...

  • High power hydrogen neutral beam injector with focusing for plasma heating. Deichuli, P. P.; Davydenko, V. I.; Ivanov, A. A.; Korepanov, S. A.; Mishagin, V. V.; Sorokin, A. V.; Stupishin, N. V.; Shulzhenko, G. I. // Review of Scientific Instruments;May2004, Vol. 75 Issue 5, p1816 

    High power neutral beam injector has been developed with particle energy of 25 keV, a current of 60 A, and several milliseconds pulse duration. Six of these injectors are planned to be used for the upgrade of the neutral beam system of a gas dynamic trap device. The injector ion source is based...

  • New type audio frequency ion source. Ragheb, M. S.; Zakhary, S. G. // Review of Scientific Instruments;Nov2002, Vol. 73 Issue 11, p3764 

    In this work, a new miniature type audio frequency (AF) (10 up to 100 kHz) of capacitive discharge type ion source has been constructed. The source is featured with its high output intensity and its small size. The optimized working condition of the source is defined at certain discharge...

  • Production of H- ions with addition of cesium or xenon to a hydrogen discharge in a small multicusp ion source. Walther, S. R.; Leung, K. N.; Kunkel, W. B. // Journal of Applied Physics;10/1/1988, Vol. 64 Issue 7, p3424 

    Discusses a study which investigated the effect on H ion production by adding cesium or xenon on a hydrogen discharge in a small magnetically filtered multicusp ion source. Result of the addition of cesium vapor to the hydrogen discharge; Requirement for sources of H and D ions; Benefits from...

  • Cusp width and power flow study at a high power magnetic multipole ion source. Horiike, Hiroshi; Akiba, Masato; Ohara, Yoshihiro; Okumura, Yoshikazu; Tanaka, Shigeru // Physics of Fluids (00319171);Oct87, Vol. 30 Issue 10, p3268 

    Power flow of the arc discharge on a high power magnetic multipole ion source is studied experimentally. Power flux distribution across line cusps is obtained using a probe made of a thermocouple. This confirms the fact that the full-width leakage is almost twice the size of the ion Larmor...

  • A filamentless ion source for materials processing. Anders, Andre; Vizir, Alexey; MacGill, Robert A.; Brown, Ian G. // Review of Scientific Instruments;Feb1998, Vol. 69 Issue 2, p880 

    Describes a multi-aperture gridded ion source for materials processing. Injection of a plasma stream into a discharge cavity in the constricted glow discharge; Simplification of the electrical setup; Operation of the source with grounded power supplies.

  • Ion source with rf autogenerating beam-plasma discharge. Vizgalov, I. V.; Dimitrov, S. K.; Chernyatjev, Yu. V. // Review of Scientific Instruments;Apr92, Vol. 63 Issue 4, p2575 

    An ion source was developed to meet such contradictory requirements as a high-perveance at a low-beam energy, ion selection, and a possibility to produce metal and multicharged ions. An electron beam in a magnetic field is used to produce and heat plasma in a discharge chamber to form an ion...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics