Improved []ammonia yield from the proton irradiation of water using methane gas
1999
Abstract 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.
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