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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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Minimising Transverse Multipoles in Accelerating RF Cavities via Azimuthally Modulated Designs
/ Wroe, Laurence (JAI, UK) ; Apsimon, Robert (Lancaster U. (main)) ; Dosanjh, Manjit (CERN) ; Sheehy, Suzanne (Melbourne U.)
In this paper, we build upon previous work of designing RF structures that support modes with tailored multipolar fields by applying the concept to negate the transverse multipoles in accelerating RF cavities caused by the incorporation of waveguide slots and tuning deformations. We outline a systematic method for designing structures that minimise these transverse multipoles and present analysis of simulations of two different minimisation designs..
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 610-613
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.610-613
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Industry and Accelerator Science, Technology, and Engineering - the Need to Integrate (Building Bridges)
/ Geometrante, Raffaella (Trieste U.) ; Biedron, Sandra (Chicago U.) ; Braidotti, Enrico (Trieste U.) ; Priem, Johannes (Eindhoven, Tech. U.) ; Rugsancharoenphol, J (Chulalongkorn U.) ; Sheehy, Suzanne (U. Melbourne (main)) ; Vretenar, Maurizio (CERN)
Finally, after two years of many virtual-only events, IPAC22, the International Particle Accelerator Conference 2022, could be held in person in Bangkok, Thailand, from June 12-17, 2022. Following up on the conclusions reached in the Industrial Session of IPAC21, remotely hosted by the Laboratories Nacional de Luz Synchrotron (LNLS) in Campinas, Brazil, the industrial session of IPAC22 had the opportunity to renew the discussions along with new ideas and opportunities [...]
2022 - 5 p.
- Published in : JACoW IPAC 2022 (2022) 1644-1648
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1644-1648
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Radiation Shielding Design for the X-Band Laboratory for Radio-Frequency Test Facility - X-Lab - at the University of Melbourne
/ Volpi, Matteo (Melbourne U.) ; Banon-Caballero, David (Valencia U., IFIC) ; Boronat, Marça (CERN) ; Catalán Lasheras, Nuria (CERN) ; Dowd, Rohan (ANSTO, Menai) ; Rassool, Roger (Melbourne U.) ; Sheehy, Suzanne (Melbourne U.) ; Taylor, Geoffrey (Melbourne U.) ; Williams, Scott (Melbourne U.)
Here we report radiation dose estimates calculated for the X-band Laboratory for Accelerators and Beams (X-LAB) under construction at the University of Melbourne (UoM). The lab will host a CERN X-band test stand containing two 12 GHz 6 MW klystron amplifiers. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 724-727
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.724-727
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Performance Study of the NIMMS Superconducting Compact Synchrotron for Ion Therapy with Strongly Curved Magnets
/ Norman, Hannah (U. Manchester (main)) ; Appleby, Robert (U. Manchester (main)) ; Benedetto, Elena (U. Geneva (main)) ; Karppinen, Mikko (CERN) ; Owen, Hywel (Daresbury) ; Sheehy, Suzanne (Melbourne U.)
Delivery of heavy ion therapy currently utilises normal conducting synchrotrons. For the future generation of clini- cal facilities, the accelerator footprint must be reduced while adopting beam intensities above 1 × 10¹⁰ particles per spill for more efficient, effective treatment. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 3014-3017
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.3014-3017
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Review of Technologies for Ion Therapy Accelerators
/ Norman, H X Q (Manchester U. ; RMIT U.) ; Appleby, Robert (Manchester U. ; Daresbury) ; Benedetto, Elena (IBM, Geneva) ; Owen, Hywel (Manchester U. ; RMIT U.) ; Sapinski, Mariusz (IBM, Geneva) ; Sheehy, Suzanne (Melbourne U.) ; Steinberg, A F (Manchester U. ; RMIT U.)
Cancer therapy using protons and heavier ions such as carbon has demonstrated advantages over other radiotherapy treatments. To bring about the next generation of clinical facilities, the requirements are likely to reduce the footprint, obtain beam intensities above 1E10 particles per spill, and achieve faster extraction for more rapid, flexible treatment. [...]
arXiv:2105.08103.-
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 2465-2468
Fulltext: 2105.08103 - PDF; document - PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.2465-2468
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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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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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Collaborative strategies for meeting the global need for cancer radiation therapy treatment systems
/ Dosanjh, Manjit (CERN) ; Aggarwal, Ajay (King's Coll. London) ; Angal-Kalinin, Deepa (Daresbury) ; Apsimon, Robert (Lancaster U. (main)) ; Boogert, Stewart (Royal Holloway, U. of London) ; Burt, Graeme (Lancaster U. (main)) ; Coleman, Norman (Unlisted, US, DC) ; Collier, Paul (CERN) ; Cross, Adrian (Strathclyde U.) ; Konoplev, Ivan (JAI, UK) et al.
The idea of designing affordable equipment and developing sustainable infrastructures for delivering radiation treatment for patients with cancer in countries that lack resources and expertise stimulated a first International Cancer Expert Corps (ICEC) championed, CERN-hosted workshop in Geneva in November 2016. Which has since been followed by three additional workshops involving the sponsorship and support from UK Science and Technology Facilities Council (STFC). [...]
CERN-ACC-2019-228.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-THPMP038
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPMP038
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