Development of medicine-intended isotope production technologies at Yerevan Physics Institute

Abstract

and natural Xe, respectively. The production method has been developed and shown to be successful. The current activity is devoted to creation and development of the technology of direct production 99mTc on the 100 Mo as target materials using the proton beam from an IBA C18/18 cyclotron. The proton cyclotron C18/18 (producer -IBA, Belgium) was purchased and will be installed nearby AANL (YerPhI) till end 2014. The 18 MeV protons will be used to investigate accelerator-based schemes for the direct production of Tc extraction from irradiated materials, development of target preparation technology, development of target material recovery methods for multiple use and others.

Theoretical justification of the possibility of cryocooling of a solid target at irradiation with proton beam from cyclotron C18

“…The calculations were made for different distributions of cyclotron beam, materials of target disk and cooling regime of target. In each case we found the beam current, at which the maximum target temperature was within 600°C (the value, at which the molybdenum metal begins to oxidize) [10]. The results of calculations of temperature distribution on the target surface in case of the miobium target disk and of cooling regime of the back side with liquid nitrogen for different distributions of beam are seen in Figure 4.…”

“…In Alikhanian National Science Laboratory a technique of 99m Tc isotope preparation [3] is under development using the method of irradiation of 100 Mo molybdenum target embedded into a titanium-base by a proton beam of C18 cyclotron [4]. One of the restrictive factors of this technique is the removal of heat released in the target as a result of proton scattering.…”