From: hionsolar@aol.com (Hion solar)
Newsgroups: sci.physics.plasma
References: <889g7i$k60$1@jupiter.cs.uml.edu>
Organization: AOL http://www.aol.com
Subject: Re: Plasma Quench Technology



Louis,

Thanks for the lead on M. Bacal's work. I did a search with Yahoo and Google
search-engines. The latter engine gave 10 pages of "hits". I found two papers
that appeared to be primarily about H^(-) ion production and H^(-) detection
using probes and laser photo-detachment:

M. Bacal, C. Michaut, L.I. Elizarov, F. El Balghiti-Sube. "Basic Processes of
Hydrogen Negative Ion Production and Destruction in Sources and Beams",
Rev.Sci.Instrum, 1996, vol.67(3) p.1138-1143.

M.Hamabe, Y.Oka, O.Tsumori, T.Kurdora, M.Bacal, "Time Resolved Study of the
Negative Ion Density in a Volume H-Ion Source by Photodetachment",
Rev.Sci.Instrum Rapport PMI 3425

A.G. Nitikin, F. El Balghiti, M.Bacal, "Comparison of Negative Ion Density
Measurements by Probes and Photodetachment", Plasma Sources Sci.& Technol.,
No.1, 37 (1996).

I will try to obtain these and see if there is enough information to proceed
with an instrument for measuring H^(-) ions in our reactor.

Thanks again Louis.....Walt Pyle

>Subject: Re: Plasma Quench Technology
>From: "Louis St-Onge" louis.st-onge@nrc.ca
>Date: 02/14/2000 1:06 PM EST
>Message-id: <889g7i$k60$1@jupiter.cs.uml.edu>
>
>
>To detect H^- ions, I would suggest laser-induced photodetachment. This
>technique has been extensively used in studies of H^- ion sources. See in
>particular the many papers by M. Bacal and collaborators.
>
>L.S.
>
>"Hion solar" <hionsolar@aol.com> wrote in message
>news:887qfu$dqa$1@jupiter.cs.uml.edu...
>>
>> I am particularly interested in your comments about the H(-) ion and
>postulated
>> chain reactions using this ion to dissociate water in the excited state by
>> electron donation. We would like to have a way to "see" this ion in the
>> reaction flow-field and in the "afterglow" region where the separation
>occurs.
>>
>> Thanks and Regards....Walt Pyle