Title

Effects of admixture gas on the production of 18F radioisotope in plasma focus devices

Document Type

Article

Journal/Book Title/Conference

Applied Radiation and Isotopes

Volume

68

Issue

12

Publication Date

12-2010

First Page

2218

Last Page

2222

DOI

10.1016/j.apradiso.2010.06.012

Abstract

In this article, the effect of admixture gas on the heating and cooling of pinched plasma directly related to the enhancement or reduction of 18F production through the 16O(3He, p)18F is considered in the plasma focus devices. It is shown that by controlling the velocity of added Oxygen particles mixed with the working helium gas into the plasma focus chamber, one can increase the current and decrease the confinement time (plasma heating) or vice verse (plasma cooling). The highest level of nuclear activities of 18F was found around 16% of the Oxygen admixture participation and was about 0.35 MBq in the conditions of 20 kJ, 0.1 Hz and after 2 min operating of Dena PF. However, in the same condition, but for the frequency of 1 Hz, the level of activity increased up to 3.4 MBq.

Comments

Published by Elsevier in Applied Radiation and Isotopes. Publisher version requires subscripton to access and is available through link above.