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- W54596579 abstract "1879 Objectives 124I can be produced by dry distillation of irradiated Al2Te3 (J.A. Nye – 5ISR–2004). Advantages of Al2Te3 compared to the more common TeO2 are clear (low Z partner, higher Te mass percentage,better thermal conductivity=higher beam current).The purpose of an automated system for halogen isotopes production are:-reduction of dose exposure of the operator-high production rate-process reproducibility -product quality and purity Methods In order to achieve such goals the study has considered:-bidirectional pneumatic transfer system between the cyclotron and the dry distillation module-specific “Irradiation Module” for the automated target positioning-application of an industrial HF heating system on the distillation device-study of an automated purification processThe tests performed on the system have focused on:-synthesis of the Al2Te3 compound-optimization of the distillation procedure-improvement of the purification procedure Results The integrated system lends itself naturally to the production of radioisotopes as: -18F as gas phase HF, following adsorption on an Inconel target liner following the proton irradiation and cryo-reclamation of 18O2, -34mCl out of Al234S3 -76Br out of Al276Se3 -211At out of alpha-irradiated bismuth targets Conclusions The key to the technique is the fast thermal ballistics of RF induction heating of target fixtures, which can reach temperatures up to 1200oC in seconds. Key variables include heat extraction during irradiation, the adhesion of aluminum chalconide target materials to the target fixture substrate, sweep gas and trapping." @default.
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- W54596579 date "2009-05-01" @default.
- W54596579 modified "2023-09-22" @default.
- W54596579 title "Automated procedure for 124I and other halogens using 16-18MeV cyclotrons" @default.
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