Powell J, O'Neil J P
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Appl Radiat Isot. 2006 Jul;64(7):755-9. doi: 10.1016/j.apradiso.2006.02.096. Epub 2006 Apr 17.
We report a simple system for producing [15O]H2O from 15N in a nitrogen/hydrogen gas target with recycling of the target nitrogen, allowing production on low-energy proton-only accelerators with minimal consumption of isotopically enriched 15N. The radiolabeled water is separated from the target gas and radiolytically produced ammonia by temporary freezing in a small trap at -40 degrees C.
