IPAC2020 - List of Keywords (proton)

Paper	Title	Other Keywords	Page
TUVIR15	Long-Term Beam Position and Angle Stabilities for the J-Parc Main Ring Slow Extraction	extraction, septum, experiment, operation	31
	M. Tomizawa, Y. Arakaki, T. Kimura, Y. Komatsu, S. Murasugi, R. Muto, K. Okamura, Y. Shirakabe, E. Yanaoka KEK, Ibaraki, Japan
	A 30 GeV proton beam accelerated in the J-PARC Main Ring (MR) is slowly extracted by the third integer resonant extraction and delivered to the hadron experimental hall. One of the critical issues in slow extraction of a high intensity proton beam is an inevitable beam loss caused by the extraction process at septum devices. A unique dynamic bump scheme for the slow extraction has been applied to reduce the beam loss. We have achieved 51 kW stable operation at 5.2s cycle in the recent physics run. The extraction efficiency is very high, typically 99.5%. However, the dynamic bump scheme is sensitive to the beam orbit angle at the first electrostatic septum (ESS1). The orbit angle of the dynamic bump must be sometimes readjusted to keep such a high efficiency. In future, diffusers and/or a silicon bend crystal, which are more sensitive to the orbit angle fluctuation, would be introduced to achieve a further high slow extraction efficiency. A long-term stability of the beam position and angle at the ESS1 has been investigated. We observed the fluctuations synchronized with tides and estimated to be due to tunnel expansion.

DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2020-TUVIR15
About •	paper received ※ 09 June 2020 paper accepted ※ 11 June 2020 issue date ※ 30 July 2020
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THVIR12	FLASH Radiation Therapy: Accelerator Aspects	radiation, electron, linac, photon	71
	A. Patriarca, L. De Marzi, V. Favaudon, S.J. Meyroneinc Institut Curie - Centre de Protonthérapie d’Orsay, Orsay, France
	One of the new paradigms in radiation therapy (RT) is the FLASH dose delivery irradiation technique. The FLASH methodology consists in delivering millisecond pulses of radiation (total beam-on time < 100-500 ms) delivered at a high mean dose-rate (> 40-100 Gy/s) and pulse amplitude (> 1E6 Gy/s), over 2000 times faster than in conventional RT. New accelerator ideas are under development or are being tested to deliver this type of beam. In this paper we will report the accelerator technology used for the pre-clinical studies and the necessary developments to deliver this novel dose RT technique.

DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2020-THVIR12
About •	paper received ※ 01 June 2020 paper accepted ※ 12 June 2020 issue date ※ 28 September 2020
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THVIR13	CERN-MEDICIS: A Unique Facility for the Production of Non-Conventional Radionuclides for the Medical Research	target, ISOL, radiation, operation	75
	C. Duchemin, E. Barbero-Soto, A.P. Bernardes, R. Catherall, E. Chevallay, A. Dorsival, V.N. Fedosseev, P. Fernier, S.S. Gilardoni, J.L. Grenard, L. Lambert, G. Lilli, G. Lilli, G. Lunghi, B.A. Marsh, Y. Martinez Palenzuela, S. Marzari, F. Pozzi, J. Riegert, S. Rothe, T. Stora, J. Vollaire, N.-T. Vuong, S. Wilkins CERN, Meyrin, Switzerland T.E. Cocolios, R. Heinke KU Leuven, Leuven, Belgium F. Haddad Cyclotron ARRONAX, Saint-Herblain, France M.A. Khan PINSTECH, Islamabad, Pakistan N. Michel SUBATECH, Nantes, France J.P. Ramos SCK•CEN, Mol, Belgium Z. Talip, N.P. van der Meulen PSI, Villigen PSI, Switzerland K. Wendt Johannes Gutenberg University Mainz, Institut für Physik, Mainz, Germany K. Wendt Mainz University, Mainz, Germany
	The MEDICIS facility is a unique facility located at CERN dedicated to the production of non-conventional radionuclides for research and development in imaging, diagnostics and radiation therapy. It exploits in a Class A work sector, a dedicated isotope separator beam line, a target irradiation station at the 1.4 GeV Proton Synchroton Booster (PSB) and receives activated targets from external institutes during CERN Long Shut-Downs. The target is heated up at high temperatures to allow for the diffusion and effusion of the atoms out of the target that are subsequently ionized. The ions are accelerated and sent through an off-line mass separator. The radionuclide of interest is extracted through mass separation and implanted into a thin metallic collection foil. After collection, the batch is prepared to be dispatched to a research center. In the near-future, the radiochemistry process will also be performed in MEDICIS. Since its commissioning in December 2017, the facility has provided novel radionuclides such as Tb-149, Tb-155, Tm-165, Er-169 and Yb-175 with high specific activity, some for the first time, to European research institutes part of the collaboration.

DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2020-THVIR13
About •	paper received ※ 09 June 2020 paper accepted ※ 12 June 2020 issue date ※ 23 September 2020
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THVIR15	Accelerators for Applications in Energy and Nuclear Waste Transmutation	target, cavity, linac, cyclotron	86
	A. Fabich EBG MedAustron, Wr. Neustadt, Austria H. Aït Abderrahim, U. Dorda, D. Vandeplassche SCK•CEN, Mol, Belgium
	Accelerator Driven Systems (ADS) is a concept using high power proton accelerators in energy production and nuclear waste transmutation. Amongst typical beam performance requirements, the operational reliability of the accelerator is exceptionally demanding. The advantages and challenges of different driver options, like cyclotrons and linacs, are evaluated and worldwide design studies are summarized. The MYRRHA design is based on a 600 MeV superconducting proton linac. The first stage towards its realization was recently approved to be constructed by SCK•CEN in Belgium. The 100 MeV linac will serve as technology demonstrator for MYRRHA as well as driver for independent two target stations, one for fusion material research and one for research and medical isotope production. MYRRHA in its final implementation is envisaged as an international collaboration.

DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2020-THVIR15
About •	paper received ※ 29 May 2020 paper accepted ※ 25 July 2020 issue date ※ 09 October 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TUVIR15

Long-Term Beam Position and Angle Stabilities for the J-Parc Main Ring Slow Extraction

extraction, septum, experiment, operation

31

M. Tomizawa, Y. Arakaki, T. Kimura, Y. Komatsu, S. Murasugi, R. Muto, K. Okamura, Y. Shirakabe, E. Yanaoka
KEK, Ibaraki, Japan

A 30 GeV proton beam accelerated in the J-PARC Main Ring (MR) is slowly extracted by the third integer resonant extraction and delivered to the hadron experimental hall. One of the critical issues in slow extraction of a high intensity proton beam is an inevitable beam loss caused by the extraction process at septum devices. A unique dynamic bump scheme for the slow extraction has been applied to reduce the beam loss. We have achieved 51 kW stable operation at 5.2s cycle in the recent physics run. The extraction efficiency is very high, typically 99.5%. However, the dynamic bump scheme is sensitive to the beam orbit angle at the first electrostatic septum (ESS1). The orbit angle of the dynamic bump must be sometimes readjusted to keep such a high efficiency. In future, diffusers and/or a silicon bend crystal, which are more sensitive to the orbit angle fluctuation, would be introduced to achieve a further high slow extraction efficiency. A long-term stability of the beam position and angle at the ESS1 has been investigated. We observed the fluctuations synchronized with tides and estimated to be due to tunnel expansion.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2020-TUVIR15

About •

paper received ※ 09 June 2020 paper accepted ※ 11 June 2020 issue date ※ 30 July 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THVIR12

FLASH Radiation Therapy: Accelerator Aspects

radiation, electron, linac, photon

71

A. Patriarca, L. De Marzi, V. Favaudon, S.J. Meyroneinc
Institut Curie - Centre de Protonthérapie d’Orsay, Orsay, France

One of the new paradigms in radiation therapy (RT) is the FLASH dose delivery irradiation technique. The FLASH methodology consists in delivering millisecond pulses of radiation (total beam-on time < 100-500 ms) delivered at a high mean dose-rate (> 40-100 Gy/s) and pulse amplitude (> 1E6 Gy/s), over 2000 times faster than in conventional RT. New accelerator ideas are under development or are being tested to deliver this type of beam. In this paper we will report the accelerator technology used for the pre-clinical studies and the necessary developments to deliver this novel dose RT technique.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2020-THVIR12

About •

paper received ※ 01 June 2020 paper accepted ※ 12 June 2020 issue date ※ 28 September 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THVIR13

CERN-MEDICIS: A Unique Facility for the Production of Non-Conventional Radionuclides for the Medical Research

target, ISOL, radiation, operation

75

C. Duchemin, E. Barbero-Soto, A.P. Bernardes, R. Catherall, E. Chevallay, A. Dorsival, V.N. Fedosseev, P. Fernier, S.S. Gilardoni, J.L. Grenard, L. Lambert, G. Lilli, G. Lilli, G. Lunghi, B.A. Marsh, Y. Martinez Palenzuela, S. Marzari, F. Pozzi, J. Riegert, S. Rothe, T. Stora, J. Vollaire, N.-T. Vuong, S. Wilkins
CERN, Meyrin, Switzerland
T.E. Cocolios, R. Heinke
KU Leuven, Leuven, Belgium
F. Haddad
Cyclotron ARRONAX, Saint-Herblain, France
M.A. Khan
PINSTECH, Islamabad, Pakistan
N. Michel
SUBATECH, Nantes, France
J.P. Ramos
SCK•CEN, Mol, Belgium
Z. Talip, N.P. van der Meulen
PSI, Villigen PSI, Switzerland
K. Wendt
Johannes Gutenberg University Mainz, Institut für Physik, Mainz, Germany
K. Wendt
Mainz University, Mainz, Germany

The MEDICIS facility is a unique facility located at CERN dedicated to the production of non-conventional radionuclides for research and development in imaging, diagnostics and radiation therapy. It exploits in a Class A work sector, a dedicated isotope separator beam line, a target irradiation station at the 1.4 GeV Proton Synchroton Booster (PSB) and receives activated targets from external institutes during CERN Long Shut-Downs. The target is heated up at high temperatures to allow for the diffusion and effusion of the atoms out of the target that are subsequently ionized. The ions are accelerated and sent through an off-line mass separator. The radionuclide of interest is extracted through mass separation and implanted into a thin metallic collection foil. After collection, the batch is prepared to be dispatched to a research center. In the near-future, the radiochemistry process will also be performed in MEDICIS. Since its commissioning in December 2017, the facility has provided novel radionuclides such as Tb-149, Tb-155, Tm-165, Er-169 and Yb-175 with high specific activity, some for the first time, to European research institutes part of the collaboration.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2020-THVIR13

About •

paper received ※ 09 June 2020 paper accepted ※ 12 June 2020 issue date ※ 23 September 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THVIR15

Accelerators for Applications in Energy and Nuclear Waste Transmutation

target, cavity, linac, cyclotron

86

A. Fabich
EBG MedAustron, Wr. Neustadt, Austria
H. Aït Abderrahim, U. Dorda, D. Vandeplassche
SCK•CEN, Mol, Belgium

Accelerator Driven Systems (ADS) is a concept using high power proton accelerators in energy production and nuclear waste transmutation. Amongst typical beam performance requirements, the operational reliability of the accelerator is exceptionally demanding. The advantages and challenges of different driver options, like cyclotrons and linacs, are evaluated and worldwide design studies are summarized. The MYRRHA design is based on a 600 MeV superconducting proton linac. The first stage towards its realization was recently approved to be constructed by SCK•CEN in Belgium. The 100 MeV linac will serve as technology demonstrator for MYRRHA as well as driver for independent two target stations, one for fusion material research and one for research and medical isotope production. MYRRHA in its final implementation is envisaged as an international collaboration.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2020-THVIR15

About •

paper received ※ 29 May 2020 paper accepted ※ 25 July 2020 issue date ※ 09 October 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)