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TY - CONF AU - Casolaro, P. AU - Braccini, S. AU - Dellepiane, G. AU - Häffner, P. AU - Mateu, I. AU - Scampoli, P. AU - Voeten, N. AU - Zyaee, E. ED - Kim, Changbum ED - Schaa, Volker R. W. ED - Kim, Dong-Eon ED - Lee, Jaeyu TI - An Automatic Focalization System for Enhanced Radioisotope Production with Solid Targets J2 - Proc. of IBIC2021, Pohang, Rep. of Korea, 24-28 May 2021 CY - Pohang, Rep. of Korea T2 - International Beam Instrumentation Conference T3 - 10 LA - english AB - A research program aimed at the production of novel radioisotopes for theranostics is ongoing at the 18 MeV cyclotron laboratory in operation at the Bern University Hospital (Inselspital). A method based on the bombardment of isotope enriched materials in form of compressed 6 mm diameter pellets was developed. To accomplish this challenging goal, accurate knowledge of beam energy, positioning and focusing as well as production cross sections are crucial. Investigations are carried on to assess all these items. In particular, an automatic compact focalization system was conceived and constructed to optimize the irradiation procedure. It is based on a 0.5 m long magnetic system, embedding two quadrupoles and two steering magnets, and a non-destructive beam monitoring detector located in front of the target. The profiles measured by a fiber detector are elaborated by a feedback optimization algorithm that acts on the magnets and keeps the beam focused on target to enhance the production yield. Following the first successful functional tests, the preliminary results on the production of medical radioisotopes are presented. PB - JACoW Publishing CP - Geneva, Switzerland SP - 150 EP - 153 KW - target KW - cyclotron KW - detector KW - radiation KW - isotope-production DA - 2021/10 PY - 2021 SN - 2673-5350 SN - 978-3-95450-230-1 DO - doi:10.18429/JACoW-IBIC2021-MOPP38 UR - https://jacow.org/ibic2021/papers/mopp38.pdf ER -