Cyclotrons2019 - List of Keywords (injection)

Paper	Title	Other Keywords	Page
MOA02	Operation Status and Upgrading of Cyclotron in Lanzhou	linac, experiment, operation, heavy-ion	5
	W.Q. Yang, L.J. Mao, L.T. Sun, J.W. Xia, J.C. Yang IMP/CAS, Lanzhou, People’s Republic of China
	IMP operates the Heavy Ion Research Facility in Lan-zhou (HIRFL), which consists of the Sector Focusing Cyclotron, the Separated Sector Cyclotron, the Cooler Storage Ring, and a number of experimental terminals. The HIRFL is mainly used in fundamental research of nuclear physics, atomic physics, irradiation material and biology, and accelerator technology. This paper mainly introduces the operation status and upgrading of HIRFL. So far, HIRFL achieves all-ion acceleration from proton to uranium. In addition, in order to improve the efficiency of HIRFL, we will build two new Linac injectors for SSC and CSR, respectively.
	Slides MOA02 [14.507 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOA02
About •	paper received ※ 14 September 2019 paper accepted ※ 24 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOP007	The Design and Calculation on the Injection and Central Region for CYCIAE-50	cyclotron, ion-source, MMI, solenoid	39
	L.Y. Ji, S. An, F.P. Guan, P. Huang, X.L. Jia, Y.L. Lv, C. Wang, S.L. Wang, T.J. Zhang, X. Zheng CIAE, Beijing, People’s Republic of China
	A 50 MeV cyclotron (CYCIAE-50) is been building at China Institute of Atomic Energy. CYCIAE-50 is a compact H⁻ cyclotron with the proton beam energy of 30 MeV to 50 MeV and the beam current of 10 uA. A multi-cusp H⁻ ion source with the beam current of 3 mA will be used for this machine. The design on the injection and central region of CYCIAE-50 has been finished. The way of matching the beam from ion source to central region and the design of central region will be present in this paper. In addition, some significant problems in central region will be discussed, including radial alignment, axial focusing, longitudinal focusing and energy gain, etc.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP007
About •	paper received ※ 15 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOP018	Simulation of the Axial Injection Beam Line of DC140 Cyclotron of FLNR JINR	cyclotron, ECR, simulation, radiation	66
	N.Yu. Kazarinov, J. Franko, G.G. Gulbekyan, I.A. Ivanenko, I.V. Kalagin JINR, Dubna, Moscow Region, Russia
	Flerov Laboratory of Nuclear Reaction of Joint Institute for Nuclear Research carries out the works under creating FLNR JINR Irradiation Facility based on the cyclotron DC140. The facility is intended for SEE testing of microchip, for production of track membranes and for solving of applied physics problems. The main systems of DC140 are based on the DC72 cyclotron ones that now are under reconstruction. The DC140 cyclotron is intended for acceleration of heavy ions with mass-to-charge ratio A/Z within interval from 5 to 5.5 up to two fixed energies 2.136 and 4.8 MeV per unit mass. The intensity of the accelerated ions will be about 1 pµAmps for light ions (A<86) and about 0.1 pµAmps for heavier ions (A>132). The injection into cyclotron will be realized from the external room temperature 18 GHz ECR ion source. The simulation of the axial injection system of the cyclotron is presented in this report.
	Poster MOP018 [1.331 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP018
About •	paper received ※ 29 August 2019 paper accepted ※ 24 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUP006	The Injection and Chopper-Based System at Arronax C70XP Cyclotron	experiment, cyclotron, solenoid, simulation	159
	F. Poirier, F. Bulteau-harel, T. Durand, X. Goiziou, C. Koumeir, A. Sengar, H. Trichet Cyclotron ARRONAX, Saint-Herblain, France G. Blain, M. Fattahi, F. Haddad, J. Vandenborre SUBATECH, Nantes, France S. Chiavassa, G. Delpon ICO, Saint - Herblain, France F. Poirier CNRS - DR17, RENNES, France
	Funding: This work has been, in part, supported by grants from the French National Agency for Research, Arronax-Plus n°ANR-11-EQPX-0004, IRON n°ANR-11-LABX-18-01 and Next n°ANR-16-IDEX-0007. The multi-particle cyclotron of the Arronax Public Interest Group (GIP) is used to perform irradiation up to hundreds of µA on various experiments and targets. To support low and high average intensity usage and adapt the beam time structure required for high peak intensity operation and experiments such as pulsed experiments studies, it has been devised a pulsing system in the injection of the cyclotron. This system combines the use of a chopper, low frequency switch, and a control system based on the new extended EPICS network. This paper details the pulsing system adopted at Arronax, updates and results for various intensity experimental studies performed with alpha and proton beams. Updated work on the simulation of the injection is also shown, specifically towards high intensity future irradiation.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP006
About •	paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUP010	Buncher for the Optimization of the Injection of a 70 MeV Cyclotron	emittance, cyclotron, simulation, ion-source	173
	P. Antonini, A. Lombardi, M. Maggiore, L. Pranovi INFN/LNL, Legnaro (PD), Italy L. Buriola Univ. degli Studi di Padova, Padova, Italy
	The design of an injection buncher for the 70 MeV cyclotron in use at LNL labs of INFN is under way. This buncher is to be installed between the ion source and the injection, to match the injected beam to the acceptance angle of the injection. The planned design is a 3/2 beta-λ double-gap driven with one or two harmonics of the 56 MHz RF frequency. Remotely-driven variable capacitors will be used for easy tuning of the matching box from the control system. The mechanical layout and simulations will be presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP010
About •	paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUP011	Upgrade of the Central Region of the Superconducting Cyclotron at INFN-LNS	cyclotron, extraction, simulation, acceleration	177
	G. D’Agostino, L. Calabretta, D. Rifuggiato INFN/LNS, Catania, Italy W.J.G.M. Kleeven IBA, Louvain-la-Neuve, Belgium
	The Superconducting Cyclotron (CS) at INFN-LNS is regularly operated with beam power up to 100 W. The present efforts in upgrading the cyclotron are directed towards an increase of beam power up to 10 kW for ions with mass number A < 40 and energies between 15 and 70 AMeV by means of increase of beam intensity. Moreover, a beam energy resolution of 0.1% is requested by the NUMEN project at INFN-LNS. We plan to achieve high beam power by increasing the efficiency of the injection and extraction processes. The current extraction efficiency is lower than 60%. We expect to increase it to a value close to 100% by extracting the specific ion beams by stripping and no longer by electrostatic deflectors. A spiral inflector is used to bent onto the median plane the ion beams produced by the two ECR ion sources. Including the effect of a drift buncher placed in the axial injection line, the current injection efficiency is about 15%. The study of an upgraded CS central region is ongoing at INFN-LNS. First results of simulation study aimed to increase the injection efficiency are presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP011
About •	paper received ※ 14 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUP029	A 15-Mev/nucleon Iso-Cyclotron for Security and Radioisotope Production	cyclotron, extraction, cavity, acceleration	223
	C. Johnstone PAC, Batavia, Illinois, USA R.B. Agustsson, S. Boucher, S.V. Kutsaev, A.Yu. Smirnov RadiaBeam, Marina del Rey, California, USA R.C. Lanza MIT, Cambridge, Massachusetts, USA
	Funding: Work supported by US Dept of Energy under a Small Business Innovation Research Grant Cargo inspection systems exploit the broad bremsstrahlung spectrum from a 6-10 MeV, low-duty cycle electron accelerator which in the presence of significant backgrounds presents challenges in image and material identification. An alternative approach is to use ions which can excite nuclear states either directly, or through generation of secondary high-energy signature gammas produced from nuclear interactions in a target. RadiaBeam is designing a compact sector isocyclotron 1.25 m in radius, with high-gradient cavities to accelerate multi-ion species up to 15-20 MeV/u with large turn-to turn, centimeter-level separation for low-loss extraction without lossy foil stripping. A strong-focusing radial field profile will be optimized in a separated-sector format for control over machine tune simultaneous with isochronous orbist requirements for high-current (~0.5 milliamp) operation. Innovation in injection will be introduced to replace the high-loss central region. Non-security applications of the cyclotron include medical isotope production, ion radiobiology, as well as material science research and ion instrumentation development.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP029
About •	paper received ※ 19 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEC01	Conceptual Design of Central Region for High-Temperature Superconducting Skeleton Cyclotron (HTS-SC)	cyclotron, space-charge, extraction, neutron	279
	H.W. Koay, M. Fukuda, H. Kanda, M. Nakao, T. Yorita RCNP, Osaka, Japan
	A compact high-current accelerator is highly desirable for short and effective Boron Neutron Capture Therapy (BNCT) as well as radioisotopes production in a hospital environment. In accordance with this, a compact high-temperature superconducting skeleton cyclotron (HTS-SC) was proposed. HTS-SC is an air-core K-80 cyclotron with a relatively small extraction radius of 40 cm for a 50 MeV H⁺ and 40 MeV D⁺ beam. Owing to its compactness, a relatively high central magnetic field (>2.4 T) remains as a significant challenge for high current injection. This work describes a preliminary study of the injection using a spiral inflector and the central region design of the HTS-SC. Besides, the transverse beam dynamics are also discussed in order to investigate the upper limit of injection current.
	Slides WEC01 [3.191 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-WEC01
About •	paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THC02	First Beams Produced by the Texas A&M University Radioactive-Beam Upgrade	ECR, ECRIS, target, cyclotron	310
	D.P. May, J.E. Ärje, B.T. Roeder, A. Saastamoinen Texas A&M University Cyclotron Institute, College Station, Texas, USA F.P. Abegglen, H.L. Clark, G.J. Kim, G. Tabacaru Texas A&M University, Cyclotron Institute, College Station, Texas, USA
	Funding: United States Department of Energy, Grant DE-FG02-93ER40773 The first test beams of radioactive ions produced by the ion-guide-on-line (IGOL) system coupled to the charge-breeding electron-cyclotron-resonance ion source (CB-ECRIS) have been accelerated to high energy by the Texas A&M K500 cyclotron. The radioactive ions were first produced by energetic protons, provided by the K150 cyclotron, impinging on foil targets. Low charge-state ions were then swept by a flow of helium gas into an rf-only sextupole ion guide (SPIG) which transports them into the plasma of the CB-ECRIS. The K500 cyclotron and beam-line transport were tuned with analog beam before tuning the radioactive beam.
	Slides THC02 [2.782 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THC02
About •	paper received ※ 13 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THD02	Central Region Upgrade for the Jyväskylä K130 Cyclotron	cyclotron, ECR, ECRIS, emittance	326
	T. Kalvas, P.M.T. Heikkinen, H.A. Koivisto JYFL, Jyväskylä, Finland E. Forton, W.J.G.M. Kleeven, J. Mandrillon, V. Nuttens IBA, Louvain-la-Neuve, Belgium
	The Jyväskylä K130 cyclotron has been in operation for more than 25 years providing beams from H to Au with energies ranging from 1 to 80 MeV/u for nuclear physics research and applications. At the typical energies around 5 MeV/u used for the nuclear physics program the injection voltage used is about 10 kV. The low voltage limits the beam intensity especially from the 18 GHz ECRIS HIISI. To increase the beam intensities the central region of the K130 cyclotron is being upgraded by increasing the injection voltage by a factor of 2. The new central region with spiral inflectors for harmonics 1-3 has been designed. The new central region shows better transmission in simulations than the original one for all harmonics and especially for h=2 typically used for nuclear physics. The engineering design for the new central region is being done.
	Slides THD02 [12.967 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THD02
About •	paper received ※ 15 September 2019 paper accepted ※ 27 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

FRB01	Designing Cyclotrons and Fixed Field Accelerators From Their Orbits	cyclotron, closed-orbit, FFAG, status	353
	T. Planche TRIUMF, Vancouver, Canada
	Funding: TRIUMF receives funding via a contribution agreement with the National Research Council of Canada. The transverse motion of particles in fixed field accelerators with mid-plane symmetry is entirely determined by the properties of the closed orbits. In this study I exploit this property to produce a variety of isochronous magnetic distributions. All the results presented in this paper are verified using cyclops simulations
	Slides FRB01 [1.367 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-FRB01
About •	paper received ※ 23 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

MOA02

Operation Status and Upgrading of Cyclotron in Lanzhou

linac, experiment, operation, heavy-ion

5

W.Q. Yang, L.J. Mao, L.T. Sun, J.W. Xia, J.C. Yang
IMP/CAS, Lanzhou, People’s Republic of China

IMP operates the Heavy Ion Research Facility in Lan-zhou (HIRFL), which consists of the Sector Focusing Cyclotron, the Separated Sector Cyclotron, the Cooler Storage Ring, and a number of experimental terminals. The HIRFL is mainly used in fundamental research of nuclear physics, atomic physics, irradiation material and biology, and accelerator technology. This paper mainly introduces the operation status and upgrading of HIRFL. So far, HIRFL achieves all-ion acceleration from proton to uranium. In addition, in order to improve the efficiency of HIRFL, we will build two new Linac injectors for SSC and CSR, respectively.

Slides MOA02 [14.507 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOA02

About •

paper received ※ 14 September 2019 paper accepted ※ 24 September 2019 issue date ※ 20 June 2020

Export •

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

MOP007

The Design and Calculation on the Injection and Central Region for CYCIAE-50

cyclotron, ion-source, MMI, solenoid

39

L.Y. Ji, S. An, F.P. Guan, P. Huang, X.L. Jia, Y.L. Lv, C. Wang, S.L. Wang, T.J. Zhang, X. Zheng
CIAE, Beijing, People’s Republic of China

A 50 MeV cyclotron (CYCIAE-50) is been building at China Institute of Atomic Energy. CYCIAE-50 is a compact H⁻ cyclotron with the proton beam energy of 30 MeV to 50 MeV and the beam current of 10 uA. A multi-cusp H⁻ ion source with the beam current of 3 mA will be used for this machine. The design on the injection and central region of CYCIAE-50 has been finished. The way of matching the beam from ion source to central region and the design of central region will be present in this paper. In addition, some significant problems in central region will be discussed, including radial alignment, axial focusing, longitudinal focusing and energy gain, etc.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP007

About •

paper received ※ 15 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020

Export •

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

MOP018

Simulation of the Axial Injection Beam Line of DC140 Cyclotron of FLNR JINR

cyclotron, ECR, simulation, radiation

66

N.Yu. Kazarinov, J. Franko, G.G. Gulbekyan, I.A. Ivanenko, I.V. Kalagin
JINR, Dubna, Moscow Region, Russia

Flerov Laboratory of Nuclear Reaction of Joint Institute for Nuclear Research carries out the works under creating FLNR JINR Irradiation Facility based on the cyclotron DC140. The facility is intended for SEE testing of microchip, for production of track membranes and for solving of applied physics problems. The main systems of DC140 are based on the DC72 cyclotron ones that now are under reconstruction. The DC140 cyclotron is intended for acceleration of heavy ions with mass-to-charge ratio A/Z within interval from 5 to 5.5 up to two fixed energies 2.136 and 4.8 MeV per unit mass. The intensity of the accelerated ions will be about 1 pµAmps for light ions (A<86) and about 0.1 pµAmps for heavier ions (A>132). The injection into cyclotron will be realized from the external room temperature 18 GHz ECR ion source. The simulation of the axial injection system of the cyclotron is presented in this report.

Poster MOP018 [1.331 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP018

About •

paper received ※ 29 August 2019 paper accepted ※ 24 September 2019 issue date ※ 20 June 2020

Export •

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

TUP006

The Injection and Chopper-Based System at Arronax C70XP Cyclotron

experiment, cyclotron, solenoid, simulation

159

F. Poirier, F. Bulteau-harel, T. Durand, X. Goiziou, C. Koumeir, A. Sengar, H. Trichet
Cyclotron ARRONAX, Saint-Herblain, France
G. Blain, M. Fattahi, F. Haddad, J. Vandenborre
SUBATECH, Nantes, France
S. Chiavassa, G. Delpon
ICO, Saint - Herblain, France
F. Poirier
CNRS - DR17, RENNES, France

Funding: This work has been, in part, supported by grants from the French National Agency for Research, Arronax-Plus n°ANR-11-EQPX-0004, IRON n°ANR-11-LABX-18-01 and Next n°ANR-16-IDEX-0007.
The multi-particle cyclotron of the Arronax Public Interest Group (GIP) is used to perform irradiation up to hundreds of µA on various experiments and targets. To support low and high average intensity usage and adapt the beam time structure required for high peak intensity operation and experiments such as pulsed experiments studies, it has been devised a pulsing system in the injection of the cyclotron. This system combines the use of a chopper, low frequency switch, and a control system based on the new extended EPICS network. This paper details the pulsing system adopted at Arronax, updates and results for various intensity experimental studies performed with alpha and proton beams. Updated work on the simulation of the injection is also shown, specifically towards high intensity future irradiation.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP006

About •

paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020

Export •

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

TUP010

Buncher for the Optimization of the Injection of a 70 MeV Cyclotron

emittance, cyclotron, simulation, ion-source

173

P. Antonini, A. Lombardi, M. Maggiore, L. Pranovi
INFN/LNL, Legnaro (PD), Italy
L. Buriola
Univ. degli Studi di Padova, Padova, Italy

The design of an injection buncher for the 70 MeV cyclotron in use at LNL labs of INFN is under way. This buncher is to be installed between the ion source and the injection, to match the injected beam to the acceptance angle of the injection. The planned design is a 3/2 beta-λ double-gap driven with one or two harmonics of the 56 MHz RF frequency. Remotely-driven variable capacitors will be used for easy tuning of the matching box from the control system. The mechanical layout and simulations will be presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP010

About •

paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020

Export •

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

TUP011

Upgrade of the Central Region of the Superconducting Cyclotron at INFN-LNS

cyclotron, extraction, simulation, acceleration

177

G. D’Agostino, L. Calabretta, D. Rifuggiato
INFN/LNS, Catania, Italy
W.J.G.M. Kleeven
IBA, Louvain-la-Neuve, Belgium

The Superconducting Cyclotron (CS) at INFN-LNS is regularly operated with beam power up to 100 W. The present efforts in upgrading the cyclotron are directed towards an increase of beam power up to 10 kW for ions with mass number A < 40 and energies between 15 and 70 AMeV by means of increase of beam intensity. Moreover, a beam energy resolution of 0.1% is requested by the NUMEN project at INFN-LNS. We plan to achieve high beam power by increasing the efficiency of the injection and extraction processes. The current extraction efficiency is lower than 60%. We expect to increase it to a value close to 100% by extracting the specific ion beams by stripping and no longer by electrostatic deflectors. A spiral inflector is used to bent onto the median plane the ion beams produced by the two ECR ion sources. Including the effect of a drift buncher placed in the axial injection line, the current injection efficiency is about 15%. The study of an upgraded CS central region is ongoing at INFN-LNS. First results of simulation study aimed to increase the injection efficiency are presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP011

About •

paper received ※ 14 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020

Export •

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

TUP029

A 15-Mev/nucleon Iso-Cyclotron for Security and Radioisotope Production

cyclotron, extraction, cavity, acceleration

223

C. Johnstone
PAC, Batavia, Illinois, USA
R.B. Agustsson, S. Boucher, S.V. Kutsaev, A.Yu. Smirnov
RadiaBeam, Marina del Rey, California, USA
R.C. Lanza
MIT, Cambridge, Massachusetts, USA

Funding: Work supported by US Dept of Energy under a Small Business Innovation Research Grant
Cargo inspection systems exploit the broad bremsstrahlung spectrum from a 6-10 MeV, low-duty cycle electron accelerator which in the presence of significant backgrounds presents challenges in image and material identification. An alternative approach is to use ions which can excite nuclear states either directly, or through generation of secondary high-energy signature gammas produced from nuclear interactions in a target. RadiaBeam is designing a compact sector isocyclotron 1.25 m in radius, with high-gradient cavities to accelerate multi-ion species up to 15-20 MeV/u with large turn-to turn, centimeter-level separation for low-loss extraction without lossy foil stripping. A strong-focusing radial field profile will be optimized in a separated-sector format for control over machine tune simultaneous with isochronous orbist requirements for high-current (~0.5 milliamp) operation. Innovation in injection will be introduced to replace the high-loss central region. Non-security applications of the cyclotron include medical isotope production, ion radiobiology, as well as material science research and ion instrumentation development.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP029

About •

paper received ※ 19 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020

Export •

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

WEC01

Conceptual Design of Central Region for High-Temperature Superconducting Skeleton Cyclotron (HTS-SC)

cyclotron, space-charge, extraction, neutron

279

H.W. Koay, M. Fukuda, H. Kanda, M. Nakao, T. Yorita
RCNP, Osaka, Japan

A compact high-current accelerator is highly desirable for short and effective Boron Neutron Capture Therapy (BNCT) as well as radioisotopes production in a hospital environment. In accordance with this, a compact high-temperature superconducting skeleton cyclotron (HTS-SC) was proposed. HTS-SC is an air-core K-80 cyclotron with a relatively small extraction radius of 40 cm for a 50 MeV H⁺ and 40 MeV D⁺ beam. Owing to its compactness, a relatively high central magnetic field (>2.4 T) remains as a significant challenge for high current injection. This work describes a preliminary study of the injection using a spiral inflector and the central region design of the HTS-SC. Besides, the transverse beam dynamics are also discussed in order to investigate the upper limit of injection current.

Slides WEC01 [3.191 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-WEC01

About •

paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020

Export •

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

THC02

First Beams Produced by the Texas A&M University Radioactive-Beam Upgrade

ECR, ECRIS, target, cyclotron

310

D.P. May, J.E. Ärje, B.T. Roeder, A. Saastamoinen
Texas A&M University Cyclotron Institute, College Station, Texas, USA
F.P. Abegglen, H.L. Clark, G.J. Kim, G. Tabacaru
Texas A&M University, Cyclotron Institute, College Station, Texas, USA

Funding: United States Department of Energy, Grant DE-FG02-93ER40773
The first test beams of radioactive ions produced by the ion-guide-on-line (IGOL) system coupled to the charge-breeding electron-cyclotron-resonance ion source (CB-ECRIS) have been accelerated to high energy by the Texas A&M K500 cyclotron. The radioactive ions were first produced by energetic protons, provided by the K150 cyclotron, impinging on foil targets. Low charge-state ions were then swept by a flow of helium gas into an rf-only sextupole ion guide (SPIG) which transports them into the plasma of the CB-ECRIS. The K500 cyclotron and beam-line transport were tuned with analog beam before tuning the radioactive beam.

Slides THC02 [2.782 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THC02

About •

paper received ※ 13 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020

Export •

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

THD02

Central Region Upgrade for the Jyväskylä K130 Cyclotron

cyclotron, ECR, ECRIS, emittance

326

T. Kalvas, P.M.T. Heikkinen, H.A. Koivisto
JYFL, Jyväskylä, Finland
E. Forton, W.J.G.M. Kleeven, J. Mandrillon, V. Nuttens
IBA, Louvain-la-Neuve, Belgium

The Jyväskylä K130 cyclotron has been in operation for more than 25 years providing beams from H to Au with energies ranging from 1 to 80 MeV/u for nuclear physics research and applications. At the typical energies around 5 MeV/u used for the nuclear physics program the injection voltage used is about 10 kV. The low voltage limits the beam intensity especially from the 18 GHz ECRIS HIISI. To increase the beam intensities the central region of the K130 cyclotron is being upgraded by increasing the injection voltage by a factor of 2. The new central region with spiral inflectors for harmonics 1-3 has been designed. The new central region shows better transmission in simulations than the original one for all harmonics and especially for h=2 typically used for nuclear physics. The engineering design for the new central region is being done.

Slides THD02 [12.967 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THD02

About •

paper received ※ 15 September 2019 paper accepted ※ 27 September 2019 issue date ※ 20 June 2020

Export •

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

FRB01

Designing Cyclotrons and Fixed Field Accelerators From Their Orbits

cyclotron, closed-orbit, FFAG, status

353

T. Planche
TRIUMF, Vancouver, Canada

Funding: TRIUMF receives funding via a contribution agreement with the National Research Council of Canada.
The transverse motion of particles in fixed field accelerators with mid-plane symmetry is entirely determined by the properties of the closed orbits. In this study I exploit this property to produce a variety of isochronous magnetic distributions. All the results presented in this paper are verified using cyclops simulations

Slides FRB01 [1.367 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-FRB01

About •

paper received ※ 23 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020

Export •

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