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@inproceedings{haeffner:ipac2021-tupab408,
author = {P. Häffner and C. Belver-Aguilar and S. Braccini and P. Casolaro and G. Dellepiane and I. Mateu and P. Scampoli and M. Schmid},
% author = {P. Häffner and C. Belver-Aguilar and S. Braccini and P. Casolaro and G. Dellepiane and I. Mateu and others},
% author = {P. Häffner and others},
title = {{A Novel Automatic Focusing System for the Production of Radioisotopes for Theranostics}},
booktitle = {Proc. IPAC'21},
pages = {2480--2482},
eid = {TUPAB408},
language = {english},
keywords = {target, cyclotron, detector, radiation, focusing},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-TUPAB408},
url = {https://jacow.org/ipac2021/papers/tupab408.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-TUPAB408},
abstract = {{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.}},
}