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Open AccessArticle

Enhancement and Validation of a 3D-Printed Solid Target Holder at a Cyclotron Facility in Perth, Australia

by Sun Chan 1,*, David Cryer 1 and Roger I. Price 1,2
1
Sir Charles Gairdner Hospital, Department of Medical Technology and Physics, Nedlands 6009, Australia
2
Department of Physics, University of Western Australia, Nedlands 6009, Australia
*
Author to whom correspondence should be addressed.
Instruments 2019, 3(1), 12; https://doi.org/10.3390/instruments3010012
Received: 31 December 2018 / Revised: 25 January 2019 / Accepted: 30 January 2019 / Published: 2 February 2019
(This article belongs to the Special Issue Instruments and Methods for Cyclotron Produced Radioisotopes)
A 3D-printed metal solid target using additive manufacturing process is a cost-effective production solution to complex and intricate target design. The initial proof-of-concept prototype solid target holder was 3D-printed in cast alloy, Al–7Si–0.6Mg (A357). However, given the relatively low thermal conductivity for A357 (κmax, 160 W/m·K), replication of the solid target holder in sterling silver (SS925) with higher thermal conductivity (κmax, 361 W/m·K) was investigated. The SS925 target holder enhances the cooling efficiency of the target design, thus achieving higher target current during irradiation. A validation production of 64Cu using the 3D-printed SS925 target holder indicated no loss of enriched 64Ni from proton bombardment above 80 µA, at 11.5 MeV. View Full-Text
Keywords: cyclotron; targetry; solid target; metal 3D-printing; target temperature; radiometals; radionuclides cyclotron; targetry; solid target; metal 3D-printing; target temperature; radiometals; radionuclides
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Chan, S.; Cryer, D.; Price, R.I. Enhancement and Validation of a 3D-Printed Solid Target Holder at a Cyclotron Facility in Perth, Australia. Instruments 2019, 3, 12.

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