Improved [ [formula omitted]]ammonia yield from the proton irradiation of water using methane gas

Production of N-13 ammonia directly in the cyclotron target has previously been accomplished by use of hydrogen pressurization or by addition of organic compounds, chiefly ethanol. All methods enjoy limited success and then either fail to produce ammonia at high beam dose, or require very high press...

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Bibliographic Details
Published in:	Applied radiation and isotopes Vol. 51; no. 4; pp. 395 - 401
Main Authors:	Krasikova, R.N, Fedorova, O.S, Korsakov, M.V, Landmeier Bennington, B, Berridge, M.S
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01-10-1999
Subjects:	Ammonia Methane Nitrogen-13 Production Target Methane Ammonia Target Nitrogen-13 Production
Online Access:	Get full text
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Summary:	Production of N-13 ammonia directly in the cyclotron target has previously been accomplished by use of hydrogen pressurization or by addition of organic compounds, chiefly ethanol. All methods enjoy limited success and then either fail to produce ammonia at high beam dose, or require very high pressures to maintain ammonia production. We report that low-pressure methane gas in the target results in production of radiochemically pure ammonia throughout the feasible range of target irradiation conditions.
ISSN:	0969-8043 1872-9800
DOI:	10.1016/S0969-8043(99)00062-7