CERN Accelerating science

Preprint
Report number	JINR-P12-2004-210 ; P12-2004-210
Title	Production of $^{99}$?? and $^{99m}$Tc in the $^{100}$Mo($\gamma, n$) Photonuclear Reaction at the Electron Accelerator - MT-25 Microtron
Author(s)	Sabelnikov, A V ; Molokanova, L G ; Gustova, M V ; Dmitriev, S N
Affiliation	(Flerov Laboratory of Nuclear Reactions, Dubna)
Publication	2004
Imprint	27 Dec 2004
Number of pages	8
Subject category	General Theoretical Physics
Abstract	$^{99}$Mo was obtained in the $^{100}$Mo($\gamma, n$) reaction at the electron accelerator - MT-25 microtron of the LNR. A foil of $^{\rm nat}$Mo(9.6{\%} $^{100}$Mo) and $^{100}$MoO$_{3}$ powder (100{\%} ^{100}$Mo) were used as targets. The $^{99}$Mo radiation yield under experimental conditions amounted to 3.2 kBq/$\mu $A$\cdot $h$\cdot $mg of $^{100}$Mo. The $^{99m}$Tc isolation from the target material and other radioactive impurities was realized by means of ion exchange. A possibility of use of the $^{99}$Mo/$^{99m}$Tc generator based on molybdenumcarbonyl was investigated. The radioactive impurity content in the final $^{99m}$Tc preparations did not exceed 10$^{-5}$ Bq/Bq.
Submitted by	[email protected]