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Title	Feasibility Study for Converting the CS-30 Into a Variable Energy Cyclotron for Isotopes Production Using the Internal Target System
Authors	H.A. Kassim KSU, Riyadh, Kingdom of Saudi Arabia H.F. Akhdar Al-Imam Mohammad Ibn Saud University, Riyadh, Kingdom of Saudi Arabia F.M. Alrumayanpresenter, A.M. Hendy King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Kingdom of Saudi Arabia
Abstract	This paper reports a method to reduce the beam energy of the CS-30 cyclotron from 26.5 up to 10 MeV using the internal target system in CS-30 cyclotrons for isotopes production. Irradiation of solid targets, in this type of cyclotrons, take place when the target is positioned horizontally inside the cyclotron tank. In its final position, the target plate interrupts the beam from completing its orbit and nuclear reactions take place. Calculations are made to determine the beam energy as a function of radius. Verification of the new method was achieved by producing pure Ga-68 at an energy level of 11.5 MeV.
Footnotes & References	[1] Gordon, M. M., Calculation of isochronous fields for sector-focused cyclotrons, Part. Accel., 13 (1983) 67-84 [2] Smith, Lloyd, ORBIT DYNAMICS IN THE SPIRAL-RIDGED CYCLOTRON, (2010) [3] Kleeven, W. J. G. M., Theory of accelerated orbits and space charge effects in an AVF cyclotron Eindhoven: Technische Universiteit Eindhoven, (1988)DOI: 10.6100/IR288492
Funding	This project was supported by the NSTIP Strategic Technologies Program in the Kingdom of Saudi Arabia, award no. 14-MAT-1233-20.
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Conference	Cyclotrons2019
Series	International Conference on Cyclotrons and their Applications (22nd)
Location	Cape Town, South Africa
Date	23-27 September 2019
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	Lowry Conradie (iThemba LABS, Somerset West, South Africa); John Garrett De Villiers (iThemba LABS, Somerset West, South Africa); Volker RW Schaa (GSI, Darmstadt, Germany)
Online ISBN	978-3-95450-205-9
Received	13 September 2019
Accepted	25 September 2019
Issue Date	20 June 2020
DOI	doi:10.18429/JACoW-Cyclotrons2019-TUP025
Pages	212-214
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.