CERN Accelerating science

Article
Title	Slow Extraction Modelling for NIMMS Hadron Therapy Synchrotrons
Author(s)	Taylor, Rebecca (CERN) ; Benedetto, Elena (Geneva Observ.) ; Pasternak, Jaroslaw (Imperial Coll., London) ; Sapinski, Mariusz (U. Geneva (main))
Publication	2022
Number of pages	4
In:	JACoW IPAC 2022 (2022) 2988-2991
In:	13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2988-2991
DOI	10.18429/JACoW-IPAC2022-THPOMS019
Subject category	Accelerators and Storage Rings
Abstract	The Next Ion Medical Machine Study (NIMMS) is an umbrella R&D programme for CERN accelerator technologies targeting advanced accelerator options for proton and light ion therapy. In collaboration with the European program HITRIplus, one area of study is slow extraction which is required to deliver a uniform beam spill for radiotherapy treatment. Several techniques use the third-order resonance to extract hadrons; these include betatron core driven extraction and radiofrequency knock-out. Flexible simulations tools using these techniques were prepared and initially benchmarked with results from the literature that used the Proton-Ion Medical Machine Study (PIMMS) design. The limits of the current PIMMS design were then pushed to evaluate its compatibility to deliver >10x higher intensity ion beams, and using increased extraction rates.
Copyright/License	CC-BY-3.0

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