Author: Braccini, S.
Paper Title Page
TUPAB408 A Novel Automatic Focusing System for the Production of Radioisotopes for Theranostics 2480
 
  • P. Häffner, C. Belver-Aguilar, S. Braccini, P. Casolaro, G. Dellepiane, I. Mateu, P. Scampoli, M. Schmid
    AEC, Bern, Switzerland
  • P. Scampoli
    Naples University Federico II, Napoli, Italy
 
  Funding: This research was partially funded by the Swiss National Science Foundation (SNSF). Grants:200021175749, CRSII5180352, CR23I2156852.
A research program on the production of novel radioisotopes for theranostics is ongoing at the 18 MeV Bern medical cyclotron laboratory equipped with a solid target station. Targets are made of rare and expensive isotope enriched materials in form of compressed 6 mm diameter pellets. The irradiation of such a small target is challenging. A specific capsule has been developed made of two aluminum halves kept together by permanent magnets. Since the beam extracted from a medical cyclotron is about 12 mm FWHM, an automatic compact focusing system was conceived and constructed to optimise 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 the detector are elaborated by a specific software that, through a feedback optimisation algorithm, acts on the magnets and keeps the beam focused on target. Being about 1 m long, it can be installed in any existing medical cyclotron facility. The design of the first prototype together with the results of the first beam tests are presented.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB408  
About • paper received ※ 17 May 2021       paper accepted ※ 24 June 2021       issue date ※ 19 August 2021  
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