Emission Spectroscopy of the 4X Source Discharge With and Without N₂ Gas

Technical Report · Thu Jan 14 00:00:00 EST 2016

DOI:https://doi.org/10.2172/1235221· OSTI ID:1235221

Smith, Horace Vernon ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

This tech note summarizes the December, 1988 emission spectroscopy measurements made on the 4X source discharge with and without N₂ gas added to the H + Cs discharge. This study is motivated by the desire to understand why small amounts of N₂ gas added to the source discharge results in a reduction in the H⁻ beam noise. The beneficial effect of N₂ gas on H⁻ beam noise was first discovered by Bill Ingalls and Stu Orbesen on the ATS SAS source. For the 4X source the observed effect is that when N2 gas is added to the discharge the H⁻ beam noise is reduced about a factor of 2.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1235221
• Report Number(s): LA-UR-16-20173
• Country of Publication: United States
• Language: English

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