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Title: Production and test of {sup 18}F samples in the SNICS ion source

Abstract

For experiments with {sup 18}F beams the output of the SNICS ion source for fluorine ions was investigated. {sup 18}F, which is a well-studied PET isotope, is generated at the medical cyclotron of the University of Wisconsin. Aqueous [{sup 18}F] fluoride ions are produced via the {sup 18}O(p,n){sup 18}F reaction using a 30-{mu}A, 11.4-MeV proton beam bombarding a 95% enriched [{sup 18}O] water target. In order to minimize the {sup 18}O component of the {sup 18}F material the [{sup 18}F] fluoride must be separated from the [{sup 18}O] water. For this purpose the aqueous [{sup 18}F] fluoride solution ({approximately} 0.5-1 ml) is removed from the production target and placed in a glassy carbon vessel. The vessel is heated to 115{degrees}C with He bubbling through the solution, evaporating the water while the {sup 18}F adheres to the vessel walls. When dry, the vessel is filled with 1 ml {sup 18}O-depleted 99.98% [{sup 16}O] water which is again evaporated. After this step is repeated once more the vessel is filled with 1.5 ml [{sup 16}O] water and 200-300 mole of natural KF as carrier material.

Authors:
;  [1]; ;  [2]
  1. Hebrew Univ., Jerusalem (Israel)
  2. Univ. of Wisconsin, Madison, MO (United States)
Publication Date:
Research Org.:
Argonne National Lab., IL (United States)
OSTI Identifier:
166348
Report Number(s):
ANL-95/14
ON: DE96000985; TRN: 95:007970-0061
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Aug 1995; Related Information: Is Part Of Physics Division Annual Report, April 1, 1994--March 31, 1995; Henning, W.F.; PB: 207 p.
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 66 PHYSICS; FLUORINE 18; ISOTOPE PRODUCTION; FLUORINE IONS; ION SOURCES; OXYGEN 18 TARGET; PROTON REACTIONS; PROGRESS REPORT; TESTING; RADIOACTIVE ION BEAMS

Citation Formats

Rehm, K.E., Paul, M., Roberts, A., and Nickels, J. Production and test of {sup 18}F samples in the SNICS ion source. United States: N. p., 1995. Web. doi:10.2172/166348.
Rehm, K.E., Paul, M., Roberts, A., & Nickels, J. Production and test of {sup 18}F samples in the SNICS ion source. United States. doi:10.2172/166348.
Rehm, K.E., Paul, M., Roberts, A., and Nickels, J. Tue . "Production and test of {sup 18}F samples in the SNICS ion source". United States. doi:10.2172/166348. https://www.osti.gov/servlets/purl/166348.
@article{osti_166348,
title = {Production and test of {sup 18}F samples in the SNICS ion source},
author = {Rehm, K.E. and Paul, M. and Roberts, A. and Nickels, J.},
abstractNote = {For experiments with {sup 18}F beams the output of the SNICS ion source for fluorine ions was investigated. {sup 18}F, which is a well-studied PET isotope, is generated at the medical cyclotron of the University of Wisconsin. Aqueous [{sup 18}F] fluoride ions are produced via the {sup 18}O(p,n){sup 18}F reaction using a 30-{mu}A, 11.4-MeV proton beam bombarding a 95% enriched [{sup 18}O] water target. In order to minimize the {sup 18}O component of the {sup 18}F material the [{sup 18}F] fluoride must be separated from the [{sup 18}O] water. For this purpose the aqueous [{sup 18}F] fluoride solution ({approximately} 0.5-1 ml) is removed from the production target and placed in a glassy carbon vessel. The vessel is heated to 115{degrees}C with He bubbling through the solution, evaporating the water while the {sup 18}F adheres to the vessel walls. When dry, the vessel is filled with 1 ml {sup 18}O-depleted 99.98% [{sup 16}O] water which is again evaporated. After this step is repeated once more the vessel is filled with 1.5 ml [{sup 16}O] water and 200-300 mole of natural KF as carrier material.},
doi = {10.2172/166348},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {8}
}