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Commissioning of X-LAB: a very high-capacity X-band RF test stand facility at the University of Melbourne
/ Volpi, Matteo (Melbourne U.) ; Giansiracusa, P J (Melbourne U.) ; Sheehy, S L (Melbourne U. ; ANSTO, Menai) ; Williams, S D (Melbourne U.) ; Rassool, R P (Melbourne U.) ; Taylor, G (Melbourne U.) ; Pushkarna, P (Melbourne U.) ; Dowd, R T (ANSTO, Menai) ; Zingre, K (ANSTO, Menai) ; Boronat, M (CERN) et al.
The Compact Linear Collider (CLIC) beam-based acceleration baseline uses high-gradient travelling wave accelerating structures at a frequency of 12 GHz. In order to prove the performance of these structures at high peak power and short pulse width RF, two klystron-based test facilities will been put in operation this year. [...]
2024 - 5 p.
- Published in : J. Phys. : Conf. Ser.: 2687 (2024) , no. 7, pp. 072001
- Published in : JACoW IPAC: 2023 (2023) , pp. THOGA1
Fulltext: PublicationJACoW - PDF; PublicationIOP - PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.072001
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Comparative Analysis of Radiotherapy Linear Accelerator Downtime and Failure Modes in the UK, Nigeria and Botswana
/ Wroe, Laurence M. (Oxford U.) ; Ige, Taofeeq A. ; Asogwa, Obinna C. ; Aruah, Simeon C. (Unlisted, NG) ; Grover, Surbhi (Botswana U.) ; Makufa, Remigio (Botswana U.) ; Fitz-Gibbon, Matthew (U. Oxford (main)) ; Coleman, N. (Unlisted, US, DC) ; Dosanjh, M. (Oxford U. ; CERN) ; Van den Heuvel, F. (Unlisted, UK ; U. Oxford (main)) et al.
The lack of radiotherapy linear accelerators (LINACs) in Low- and Middle- Income Countries (LMICs) has been recognised as a major barrier to providing quality cancer care in these regions, along with a shortfall in the number of highly qualified personnel. It is expected that additional challenges will be faced in operating precise, high tech radiotherapy equipment in these environments, and anecdotal evidence suggests that LINACs have greater downtime and higher failure rates of components than their counterparts in High-Income Countries. [...]
arXiv:1905.03447.-
2020-03-01 - 8 p.
- Published in : Clinical Oncology: 32 (2020) , pp. e111-e118
- Published in : Clinical Oncology: 35 (2023) , no. 5, pp. e347
Fulltext: 1905.03447 - PDF; Publication - PDF; Erratum - PDF;
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Slow Extraction Techniques from Fixed Field Accelerators
/ Taylor, R (Imperial Coll., London ; CERN) ; Steinberg, A F (Manchester U. ; Melbourne U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Pasternak, J (Imperial Coll., London) ; Appleby, R B (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Sheehy, S L (Melbourne U. ; ANSTO, Menai) ; Benedetto, E (Unlisted, CH ; CERN)
Fixed Field Accelerators are a candidate for future hadron cancer therapy facilities as their high repetition rate and large energy acceptance enables novel treatment modalities such as high dose rate FLASH. However, conventional dose delivery mechanisms are still necessary, requiring continuous beam delivery over 1--30s. [...]
2023
- Published in : JACoW IPAC 2023 (2023) MOPL176
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL176
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4.
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IMPACTS OF STRONGLY CURVED MAGNETIC MULTIPOLES ON COMPACT SYNCHROTRON DYNAMICS
/ Norman, H X Q (University of Manchester, Manchester, UK and Cockcroft Institute, Warrington, UK and University of Melbourne, Melbourne, Australia) ; Appleby, R B (Univrsity of Manchester, Manchester, UK and Cockcroft Institute, Warrington, UK) ; Sheehy, S L (Australian Nuclear Science and Technology Organisation (ANSTO), Australia) ; Benedetto, Elena (SEEIIST Association (CH))
Superconducting curved magnets can reduce accelerator footprints by producing strong fields (>3 T) for applications such as carbon ion therapy, however the effect of strongly curved magnetic multipoles and fringe fields on accelerator beam dynamics is not fully understood. [...]
CERN-ACC-NOTE-2023-0009 ; CERN-NIMMS-015.
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2023. - 6 p.
Access to fulltext
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5.
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The Southern Hemisphere’s First X-Band Radio-Frequency Test Facility at the University of Melbourne
/ Volpi, Matteo (Melbourne U.) ; Boland, Mark J (Saskatchewan U., CLS) ; Catalán Lasheras, Nuria (CERN) ; Dowd, Rohan (ASP, Melbourne) ; González Antón, Sergio (CERN) ; McMonagle, Gerard (CERN) ; Rassool, Roger P (Melbourne U.) ; Sheehy, Suzanne L (Melbourne U.) ; Stapnes, Steinar (CERN) ; Taylor, Geoffrey N (Melbourne U.) et al.
The first Southern Hemisphere X-band Laboratory for Accelerators and Beams (X-LAB) is under construction at the University of Melbourne, and it will operate CERN X-band test stand containing two 12GHz 6MW klystron amplifiers. By power combination through hybrid couplers and the use of pulse compressors, up to 50 MW of peak power can be sent to any of 2 test slots at pulse repetition rates up to 400 Hz. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC '21 (2021) 3588-3591
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3588-3591
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6.
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Creating Exact Multipolar Fields in Accelerating RF Cavities via an Azimuthally Modulated Design
/ Wroe, Laurence M (JAI, UK) ; Apsimon, Robert J (Cockcroft Inst. Accel. Sci. Tech.) ; Dosanjh, Manjit (JAI, UK ; CERN) ; Sheehy, Suzanne L (JAI, UK ; Melbourne U.)
In this paper, we present a novel method for designing RF structures with specifically tailored multipolar field contributions. This has a range of applications, including the suppression of unwanted multipolar fields or the introduction of wanted terms, such as for quadrupole focusing. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 1154-1157
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.1154-1157
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7.
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Conceptual design of a non scaling fixed field alternating gradient accelerator for protons and carbon ions for charged particle therapy
/ Peach, K. J. (John Adams Institute) ; Aslaninejad, M. (Imperial College, London) ; Barlow, R. J. (University of Huddersfield) ; Beard, C. D. (STFC Daresbury Laboratory) ; Bliss, N. (STFC Daresbury Laboratory) ; Cobb, J. H. (John Adams Institute) ; Easton, M. J. (Imperial College, London) ; Edgecock, T. R. (STFC Rutherford Appleton Laboratory, University of Huddersfield) ; Fenning, R. (Brunei University) ; Gardner, I. S. K. (STFC Rutherford Appleton Laboratory) et al.
The conceptual design is presented for a particle accelerator for medical applications (PAMELA), an accelerator facility to deliver protons and carbon ions efficiently for charged particle therapy (CPT). The design uses the novel features of nonscaling fixed field alternating gradient (ns-FFAG) technology to improve performance over existing facilities. [...]
CERN-ACC-2013-0319.-
Geneva : CERN, 2013
- Published in : 10.1103/PhysRevSTAB.16.030101
Fulltext: PDF;
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8.
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9.
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A Low Energy Recycling Non-scaling FFAG for Security and Medicine
/ Barlow, R J (Huddersfield U.) ; Edgecock, T R (Huddersfield U.) ; Johnstone, C (Fermilab) ; Owen, H (Manchester U.) ; Sheehy, S L (Rutherford)
Barlow R J: Huddersfield University
Edgecock, T R: Huddersfield University
Johnstone, C: FNAL
Owen, H: Manchester University
Sheehy, S L: STFC
CERN-ACC-2014-0256.-
Geneva : CERN, 2014
Fulltext: PDF;
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10.
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Acceleration in the linear non-scaling fixed-field alternating-gradient accelerator EMMA
/ Machida, S ; Barlow, R ; Berg, J S ; Bliss, N ; Buckley, R K ; Clarke, J A ; Craddock, M K ; D'Arcy, R ; Edgecock, R ; Garland, J M et al.
FERMILAB-PUB-12-308-AD.-
2012
- Published in : Nature Phys. 8 (2012) 243-247
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