CYCLOTRONS2022 - List of Keywords (operation)

Paper	Title	Other Keywords	Page
MOAI02	Upgrade and Current Status of High-Frequency Systems for RIKEN Ring Cyclotron	cyclotron, cavity, acceleration, heavy-ion	6
	K. Yamada RIKEN Nishina Center, Wako, Japan
	The high-frequency systems for the RIKEN Ring Cyclotron (RRC) was upgraded in order to increase the acceleration voltage at 18.25 MHz operation by remodeling its cavity resonators and rf controllers. As a result, the maximum gap voltage at 18.25 MHz improved from about 80 kV to more than 150 kV. The beam intensity of 238U for the RI Beam Factory was increased up to 117 pnA in the fiscal 2020 by overcoming the beam intensity limitation of RRC due to the space charge effect. In this talk, I will present the details of upgrade as well as the current status of high-frequency systems for the RRC.
	Slides MOAI02 [7.420 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOAI02
About •	Received ※ 27 January 2023 — Revised ※ 28 January 2023 — Accepted ※ 30 January 2023 — Issue date ※ 13 February 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOBO02	IMPACT: A Substantial Upgrade to the HIPA Infrastructure at PSI	target, proton, experiment, cyclotron	34
	D.C. Kiselev, R. Eichler, M. Haj Tahar, M. Hartmann, K. Kirch, A. Knecht, A. Koschik, D. Laube, T. Rauber, D. Reggiani, R. Schibli, J. Snuverink, U. Wellenkamp, H. Zhang, N.P. van der Meulen PSI, Villigen PSI, Switzerland K. Kirch ETH, Zurich, Switzerland
	The High Intensity Proton Accelerator complex (HIPA) at the Paul Scherrer Institute (PSI), Switzerland, delivers a 590 MeV CW proton beam with currents of up to 2.4 mA (1.4 MW) to several user facilities and experimental stations. Other than the two spallation targets for thermal/cold neutrons (SINQ) and for ultracold neutrons (UCN), the beam feeds two meson production targets, Target M and Target E, serving particle physics experiments and material research via seven secondary beam lines. IMPACT (Isotope and Muon Production with Advanced Cyclotron and Target technology) aims to expand the infrastructure at HIPA in two ways: by HIMB (High-Intensity Muon Beams), increasing the surface muon rate by a factor 100, and TATTOOS (Targeted Alpha Tumour Therapy and Other Oncological Solutions), producing promising radionuclides for simultaneous diagnosis and therapy of cancer in doses sufficient for clinical studies. HIMB and TATTOOS are located close to each other. HIMB has to fit into the existing main proton beam line towards Target E and SINQ, while TATTOOS will occupy an area in a new, adjacent building using 100 µA protons split from the main beam. TATTOOS will be a perfect complement to the existing radionuclide production at 72 MeV, adding a variety of difficult to produce nuclides at a large scale. For HIMB, the current Target M will be replaced by a four-fold thicker target (Target H) consisting of a graphite wheel optimized for surface muon production. In addition, both muon beam lines are improved regarding their transmission from target to experiment. Care is taken to reduce the losses to an acceptable level in the main existing proton beam line. Installation towards the implementation of IMPACT as new user facility is foreseen from 2027.
	Slides MOBO02 [6.877 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOBO02
About •	Received ※ 14 January 2023 — Revised ※ 17 January 2023 — Accepted ※ 30 January 2023 — Issue date ※ 10 February 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPO003	Sawtooth Wave Buncher Upgrade for SFC Cyclotron	cyclotron, ECR, bunching, injection	51
	R. Zhang, X.M. Su, X.W. Wang, Z. Xu IMP/CAS, Lanzhou, People’s Republic of China
	To increase extracted beam intensity, the SFC cyclotron requires that the sawtooth wave buncher on its injection line provide the effective voltage up to 2.5kV and cover a wide frequency range of six times. We develope a multi-harmonic synthesis method by combining a broadband amplifier and impedance transformer, which provide a high-voltage single-gap buncher at limited space and cost. With this method, the maximum voltage of the new buncher exceeds 2.5kV and the beam intensity increases by a factor of 6.7.
	Poster MOPO003 [1.092 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO003
About •	Received ※ 04 December 2022 — Revised ※ 12 February 2023 — Accepted ※ 22 February 2023 — Issue date ※ 25 August 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPO006	Development of High Temperature Superconducting ECR Ion Source Using REBCO Coils	ECR, plasma, solenoid, sextupole	62
	T.H. Chong, M. Fukuda, T. Hara, H. Kanda, M. Kittaka, S. Matsui, K. Takeda, Y. Yasuda, T. Yorita, H. Zhao RCNP, Osaka, Japan S. Fukui Niigata University, Niigata, Japan T. Hirayama, Y. Matsubara, Y. Mikami, T. Takahashi, J. Yoshida SHI, Kanagawa, Japan A. Ishiyama Waseda University, Tokyo, Japan S. Noguchi Hokkaido University, Sapporo, Japan H. Ueda Okayama University, Okayama, Japan T. Watabe Chuba, Aichi, Japan
	A high temperature superconducting ECR ion source (HTS-ECR) using REBCO coils is under development in Research Center for Nuclear Physics(RCNP), Osaka University. REBCO tapes are the second-generation high temperature superconductor, which maintains a high critical current even being placed in a strong external magnetic field. Using this REBCO coils as electromagnets, the HTS-ECR was designed to operate at microwave frequencies of 2.45 GHz and 10 GHz, for the purpose of producing high intensity proton, deuteron and helium beams. In this work, the low-temperature performance test results of the REBCO coils will be presented. The coil system and plasma chamber designed for the HTS-ECR will also be discussed. Results yielded in this research will also be made the best use of the development of a skeleton cyclotron, a compact air-core cyclotron which is under development in RCNP, Osaka University.
	Poster MOPO006 [3.590 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO006
About •	Received ※ 21 December 2022 — Revised ※ 11 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 26 May 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUAO01	History and Prospectives of GANIL	cyclotron, target, cavity, linac	115
	A. Savalle, O. Kamalou GANIL, Caen, France
	The first beam of the GANIL facility (Grand Accélérateur National d’Ions Lourds) at Caen was ejected from the second separated sector cyclotron forty years ago (November 19th, 1982). Since then, several evolutions occurred. In 2001 the first exotic beam produced by the Isotope Separation On-Line method at the SPIRAL1 facility, was delivered to physics. The GANIL team realized an upgrade of this facility in order to extend the range of post-accelerated radioactive ions in years 2013-2017, with first radioactive beams delivered in 2018. In 2019 GANIL became also a LINAC facility with the first beam accelerated in the SPIRAL2 facility. The DESIR facility is aimed at using beams from SPIRAL2 and from SPIRAL1 facility, otivating a major renovation plan of the cyclotron facility. Parts of ancient and recent history of GANIL will be presented as well as its future.
	Slides TUAO01 [7.157 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-TUAO01
About •	Received ※ 20 December 2022 — Revised ※ 11 January 2023 — Accepted ※ 17 February 2023 — Issue date ※ 03 April 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEAO04	Status of the HZB Cyclotron	radiation, cyclotron, proton, experiment	159
	A. Denker, J. Bundesmann, T. Damerow, A. Dittwald, T. Fanselow, D. Hildebrand, U. Hiller, G. Kourkafas, S. Ozierenski, J. Röhrich, D. Rössink HZB, Berlin, Germany D. Cordini, J. Heufelder, S. Seidel, R. Stark, A. Weber Charite, Berlin, Germany
	For more than 20 years eye tumours are treated in collaboration with the Charité - Universitätsmedizin Berlin. The close co-operation between Charité and HZB permits joint interdisciplinary research. Irradiations with either a sharp, well focused or a broad beam, either in vacuum or in air are possible with a proton beam of 68 MeV maximum energy, or a helium beam of 90 MeV. In the past few years, we concentrated on beam delivery for FLASH experiments and the related dosimetry. Artificial lenses have been irradiated under normal and FLASH conditions to investigate possible changes in the transparency. Furthermore, radiation hardness tests solar of cells for space have been performed. A modernization project has been started in order to secure a long term and sustainable operation of our accelerator complex for therapy and research. The accelerator operation for therapy as well as on-going experiments and results will be presented.
	Slides WEAO04 [3.928 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-WEAO04
About •	Received ※ 30 December 2022 — Revised ※ 15 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 04 May 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEBO04	Commissioning of the Sumitomo Superconducting AVF Cyclotron SC230	cyclotron, extraction, proton, MMI	187
	Y. Ebara, Y. Kumata, T. Miyashita, Nakajima, S. Nakajima, T. Tsurudome, H. Tsutsui, J. Yoshida SHI, Kanagawa, Japan
	A 230 MeV superconducting AVF cyclotron SC230 is developed by Sumitomo Heavy Industries, Ltd. This is the world’s smallest isochronous cyclotron for proton therapy, and its weight is 65 tons, which is 0.3 times that of our previous cyclotron model. The size is reduced by generating high magnetic fields using NbTi supercon-ducting coils cooled without cryogen. In addition, this cyclotron features the maximum beam current >1 uA and low power consumption <200 kW. The beam-commissioning test started at the end of 2020, the first extracted beam was observed in July 2021, and the basic performance of the beam was measured. The processes and results of the beam commissioning are reported.
	Slides WEBO04 [4.017 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-WEBO04
About •	Received ※ 26 December 2022 — Revised ※ 22 January 2023 — Accepted ※ 07 February 2023 — Issue date ※ 15 June 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPO010	High Intensity Cyclotron System Integration and Commissioning for Industrialization Application	cyclotron, power-supply, controls, MMI	225
	P.Z. Li, H.R. Cai, S.G. Hou, X.L. Jia, G.F. Pan, G.F. Song, J.F. Wang, G. Yang, H. Zhang, T.J. Zhang CIAE, Beijing, People’s Republic of China
	Up to 430 µA beam intensity was obtained in 10 MeV CRM cyclotron (CYCIAE-CRM) at China Institute of Atomic Energy (CIAE) in 2010. Whereafter, CIAE built a series of 14 MeV high intensity external ion source cyclotrons for medical isotope application and its relevant research. Compared with research cyclotron facility, cyclotron for industrialization application requires higher level of safety, usability and stability. Therefore, mechanical and electrical system integration and optimum are applied in the cyclotron design and commissioning. Electrical devices of cyclotron, including power supply, RF amplifier and PLC controller, are integrated into four standard industrial shielding cabinets with electromagnetic compatibility (EMC) design to improve electromagnetic interference and operation stability. Besides, earthing system is rearranged in regular laboratory maintenance period to minimize electromagnetic coupling of different signal systems. Based on the previous compact system integration, communication system is integrated into each electrical device as well and could be operated in local and remote mode for the convenience of commissioning. Industrial Ethernet standard PROFINET is adopted as communication protocol to improve the efficiency of protocol interaction towards millisecond level. Regarding RF system, start-up sequence of LLRF is optimized to increase uptime and reliability. The commissioning is also presented in this paper.
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-WEPO010
About •	Received ※ 06 December 2022 — Revised ※ 31 December 2022 — Accepted ※ 09 February 2023 — Issue date ※ 30 October 2023
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WEPO012	Upgrade of Beam Diagnostic Systems at JULIC Cyclotron	cyclotron, diagnostics, controls, experiment	231
	Y. Valdau, O. Felden, R. Gebel, U.G. Giesen, R.L. Lohoff, H. Soltner FZJ, Jülich, Germany N.-O. Fröhlich DESY, Hamburg, Germany P.J. Niedermayer GSI, Darmstadt, Germany
	The cyclotron JULIC is used as injector for the COSY storage ring since almost 30 years. Beams of polarized and unpolarised H⁻ and D- ions are routinely accelerated using cyclotron HF system up to 45 and 55 MeV, respectively. Meanwhile, low energy beams from JULIC become more frequently used by the experimentalists, especially at the new low energy beam line, which connects cyclotron with the large Big Karl experimental hall. To meet the requirements of the cyclotron users a diagnostic system upgrade program has been started at the JULIC cyclotron. All destructive beam diagnostic systems (Faraday Cups) have been equipped with a new produced by CAEN TetrAMM based beam diagnostic systems. All TetrAMM devices are implemented into the common COSY Control System with EPICS readout and archiving environment. The cyclotron NMR field control system has been upgraded using the newest sensor from Metrolab (PT2026), which allows operation in complete field range of the JULIC cyclotron, without changing the sensor. A new Lock In-Amplifier based Data Acquisition System has been used for nondestructive beam intensity and position diagnostic at the Big Karl beam line. First tests have demonstrated possibility to measure current and position of the 10 nA DC beam using this technique. Since relatively long time cyclotron users were occasionally disturbed by unwanted 33 Hz noise at the output of the cyclotron. Using non-contact laser vibration measurements system OMETRON S16, vibrations in this frequency range were detected on the internal elements of the HF-System. The source of these vibrations, located in the cyclotron bunker, have been identified and removed. In this contribution, the status of the JULIC cyclotron diagnostic system upgrade project will be presented.
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-WEPO012
About •	Received ※ 31 December 2022 — Revised ※ 18 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 14 April 2023
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THBI02	Status Report on the Cyclotron Injector for HIMM	cyclotron, extraction, ECR, ion-source	269
	G.L. Dou, X. Chen, C.C. Li, L.T. Sun, B. Wang, X.W. Wang, L. Yang, Q.G. Yao, H.W. Zhao IMP/CAS, Lanzhou, People’s Republic of China
	HIMM (Heavy Ion Medical Machine) is an accelerator complex designed by Institute of Modern Physics, CAS, which accelerates carbon ions to the energy 400 MeV/A for tumor therapy. The main accelerator of HIMM is a synchronous accelerator. As a special design, we use a cyclotron as the injector of the synchrontron. The cyclotron is a compact cyclotron to accelerate C¹²⁵⁺ ions to the energy 6.8 MeV/A, and the extracted beam intensity of the cyclotron is 10 eµA. For stability and simplicity operation, we use two identical permanent magnet ECR ion sources in the axial injection line, that the ion sources can interchange with each other rapidly with the same performance, and only one main exciting coil with no trim coils in the cyclotron magnet. Up to now, three cyclotrons have been accomplished, one of them was operated in Gansu Wuwei Tumor Hospital to treat more than six hundred cancer patients in the last two and a half years, the other one had been fully commissioned in Lanzhou Heavy Ion Hospital about two years ago. After a short introduction to the heavy ion cancer treatment facility development in China, this paper will present operation status of the cyclotrons for HIMM. Typical performance and on-line operation reliability will be discussed.
	Slides THBI02 [2.031 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-THBI02
About •	Received ※ 07 December 2022 — Revised ※ 24 July 2023 — Accepted ※ 03 August 2023 — Issue date ※ 13 October 2023
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FRAI01	Developments and Prospects of FFAs at RAL	lattice, dynamic-aperture, resonance, controls	351
	S. Machida STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
	Fixed Field Alternating Gradient Accelerator (FFA) has several advantages as a proton driver for high beam power applications. In particular, control of pulse structure can ben easily done by RF gymnastics. FFA is a sustainable (energy efficient) accelerator with the main magnets with DC operation. We will discuss the development of a FFA physics design for the ISIS (spallation neutron source) and its prototype.
	Slides FRAI01 [12.227 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-FRAI01
About •	Received ※ 09 December 2022 — Revised ※ 08 February 2023 — Accepted ※ 03 March 2023 — Issue date ※ 16 May 2023
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Paper

Title

Other Keywords

Page

MOAI02

Upgrade and Current Status of High-Frequency Systems for RIKEN Ring Cyclotron

cyclotron, cavity, acceleration, heavy-ion

6

K. Yamada
RIKEN Nishina Center, Wako, Japan

The high-frequency systems for the RIKEN Ring Cyclotron (RRC) was upgraded in order to increase the acceleration voltage at 18.25 MHz operation by remodeling its cavity resonators and rf controllers. As a result, the maximum gap voltage at 18.25 MHz improved from about 80 kV to more than 150 kV. The beam intensity of 238U for the RI Beam Factory was increased up to 117 pnA in the fiscal 2020 by overcoming the beam intensity limitation of RRC due to the space charge effect. In this talk, I will present the details of upgrade as well as the current status of high-frequency systems for the RRC.

Slides MOAI02 [7.420 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOAI02

About •

Received ※ 27 January 2023 — Revised ※ 28 January 2023 — Accepted ※ 30 January 2023 — Issue date ※ 13 February 2023

Cite •

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

MOBO02

IMPACT: A Substantial Upgrade to the HIPA Infrastructure at PSI

target, proton, experiment, cyclotron

34

D.C. Kiselev, R. Eichler, M. Haj Tahar, M. Hartmann, K. Kirch, A. Knecht, A. Koschik, D. Laube, T. Rauber, D. Reggiani, R. Schibli, J. Snuverink, U. Wellenkamp, H. Zhang, N.P. van der Meulen
PSI, Villigen PSI, Switzerland
K. Kirch
ETH, Zurich, Switzerland

The High Intensity Proton Accelerator complex (HIPA) at the Paul Scherrer Institute (PSI), Switzerland, delivers a 590 MeV CW proton beam with currents of up to 2.4 mA (1.4 MW) to several user facilities and experimental stations. Other than the two spallation targets for thermal/cold neutrons (SINQ) and for ultracold neutrons (UCN), the beam feeds two meson production targets, Target M and Target E, serving particle physics experiments and material research via seven secondary beam lines. IMPACT (Isotope and Muon Production with Advanced Cyclotron and Target technology) aims to expand the infrastructure at HIPA in two ways: by HIMB (High-Intensity Muon Beams), increasing the surface muon rate by a factor 100, and TATTOOS (Targeted Alpha Tumour Therapy and Other Oncological Solutions), producing promising radionuclides for simultaneous diagnosis and therapy of cancer in doses sufficient for clinical studies. HIMB and TATTOOS are located close to each other. HIMB has to fit into the existing main proton beam line towards Target E and SINQ, while TATTOOS will occupy an area in a new, adjacent building using 100 µA protons split from the main beam. TATTOOS will be a perfect complement to the existing radionuclide production at 72 MeV, adding a variety of difficult to produce nuclides at a large scale. For HIMB, the current Target M will be replaced by a four-fold thicker target (Target H) consisting of a graphite wheel optimized for surface muon production. In addition, both muon beam lines are improved regarding their transmission from target to experiment. Care is taken to reduce the losses to an acceptable level in the main existing proton beam line. Installation towards the implementation of IMPACT as new user facility is foreseen from 2027.

Slides MOBO02 [6.877 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOBO02

About •

Received ※ 14 January 2023 — Revised ※ 17 January 2023 — Accepted ※ 30 January 2023 — Issue date ※ 10 February 2023

Cite •

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

MOPO003

Sawtooth Wave Buncher Upgrade for SFC Cyclotron

cyclotron, ECR, bunching, injection

51

R. Zhang, X.M. Su, X.W. Wang, Z. Xu
IMP/CAS, Lanzhou, People’s Republic of China

To increase extracted beam intensity, the SFC cyclotron requires that the sawtooth wave buncher on its injection line provide the effective voltage up to 2.5kV and cover a wide frequency range of six times. We develope a multi-harmonic synthesis method by combining a broadband amplifier and impedance transformer, which provide a high-voltage single-gap buncher at limited space and cost. With this method, the maximum voltage of the new buncher exceeds 2.5kV and the beam intensity increases by a factor of 6.7.

Poster MOPO003 [1.092 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO003

About •

Received ※ 04 December 2022 — Revised ※ 12 February 2023 — Accepted ※ 22 February 2023 — Issue date ※ 25 August 2023

Cite •

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

MOPO006

Development of High Temperature Superconducting ECR Ion Source Using REBCO Coils

ECR, plasma, solenoid, sextupole

62

T.H. Chong, M. Fukuda, T. Hara, H. Kanda, M. Kittaka, S. Matsui, K. Takeda, Y. Yasuda, T. Yorita, H. Zhao
RCNP, Osaka, Japan
S. Fukui
Niigata University, Niigata, Japan
T. Hirayama, Y. Matsubara, Y. Mikami, T. Takahashi, J. Yoshida
SHI, Kanagawa, Japan
A. Ishiyama
Waseda University, Tokyo, Japan
S. Noguchi
Hokkaido University, Sapporo, Japan
H. Ueda
Okayama University, Okayama, Japan
T. Watabe
Chuba, Aichi, Japan

A high temperature superconducting ECR ion source (HTS-ECR) using REBCO coils is under development in Research Center for Nuclear Physics(RCNP), Osaka University. REBCO tapes are the second-generation high temperature superconductor, which maintains a high critical current even being placed in a strong external magnetic field. Using this REBCO coils as electromagnets, the HTS-ECR was designed to operate at microwave frequencies of 2.45 GHz and 10 GHz, for the purpose of producing high intensity proton, deuteron and helium beams. In this work, the low-temperature performance test results of the REBCO coils will be presented. The coil system and plasma chamber designed for the HTS-ECR will also be discussed. Results yielded in this research will also be made the best use of the development of a skeleton cyclotron, a compact air-core cyclotron which is under development in RCNP, Osaka University.

Poster MOPO006 [3.590 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO006

About •

Received ※ 21 December 2022 — Revised ※ 11 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 26 May 2023

Cite •

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

TUAO01

History and Prospectives of GANIL

cyclotron, target, cavity, linac

115

A. Savalle, O. Kamalou
GANIL, Caen, France

The first beam of the GANIL facility (Grand Accélérateur National d’Ions Lourds) at Caen was ejected from the second separated sector cyclotron forty years ago (November 19th, 1982). Since then, several evolutions occurred. In 2001 the first exotic beam produced by the Isotope Separation On-Line method at the SPIRAL1 facility, was delivered to physics. The GANIL team realized an upgrade of this facility in order to extend the range of post-accelerated radioactive ions in years 2013-2017, with first radioactive beams delivered in 2018. In 2019 GANIL became also a LINAC facility with the first beam accelerated in the SPIRAL2 facility. The DESIR facility is aimed at using beams from SPIRAL2 and from SPIRAL1 facility, otivating a major renovation plan of the cyclotron facility. Parts of ancient and recent history of GANIL will be presented as well as its future.

Slides TUAO01 [7.157 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-TUAO01

About •

Received ※ 20 December 2022 — Revised ※ 11 January 2023 — Accepted ※ 17 February 2023 — Issue date ※ 03 April 2023

Cite •

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

WEAO04

Status of the HZB Cyclotron

radiation, cyclotron, proton, experiment

159

A. Denker, J. Bundesmann, T. Damerow, A. Dittwald, T. Fanselow, D. Hildebrand, U. Hiller, G. Kourkafas, S. Ozierenski, J. Röhrich, D. Rössink
HZB, Berlin, Germany
D. Cordini, J. Heufelder, S. Seidel, R. Stark, A. Weber
Charite, Berlin, Germany

For more than 20 years eye tumours are treated in collaboration with the Charité - Universitätsmedizin Berlin. The close co-operation between Charité and HZB permits joint interdisciplinary research. Irradiations with either a sharp, well focused or a broad beam, either in vacuum or in air are possible with a proton beam of 68 MeV maximum energy, or a helium beam of 90 MeV. In the past few years, we concentrated on beam delivery for FLASH experiments and the related dosimetry. Artificial lenses have been irradiated under normal and FLASH conditions to investigate possible changes in the transparency. Furthermore, radiation hardness tests solar of cells for space have been performed. A modernization project has been started in order to secure a long term and sustainable operation of our accelerator complex for therapy and research. The accelerator operation for therapy as well as on-going experiments and results will be presented.

Slides WEAO04 [3.928 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-WEAO04

About •

Received ※ 30 December 2022 — Revised ※ 15 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 04 May 2023

Cite •

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

WEBO04

Commissioning of the Sumitomo Superconducting AVF Cyclotron SC230

cyclotron, extraction, proton, MMI

187

Y. Ebara, Y. Kumata, T. Miyashita, Nakajima, S. Nakajima, T. Tsurudome, H. Tsutsui, J. Yoshida
SHI, Kanagawa, Japan

A 230 MeV superconducting AVF cyclotron SC230 is developed by Sumitomo Heavy Industries, Ltd. This is the world’s smallest isochronous cyclotron for proton therapy, and its weight is 65 tons, which is 0.3 times that of our previous cyclotron model. The size is reduced by generating high magnetic fields using NbTi supercon-ducting coils cooled without cryogen. In addition, this cyclotron features the maximum beam current >1 uA and low power consumption <200 kW. The beam-commissioning test started at the end of 2020, the first extracted beam was observed in July 2021, and the basic performance of the beam was measured. The processes and results of the beam commissioning are reported.

Slides WEBO04 [4.017 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-WEBO04

About •

Received ※ 26 December 2022 — Revised ※ 22 January 2023 — Accepted ※ 07 February 2023 — Issue date ※ 15 June 2023

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

WEPO010

High Intensity Cyclotron System Integration and Commissioning for Industrialization Application

cyclotron, power-supply, controls, MMI

225

P.Z. Li, H.R. Cai, S.G. Hou, X.L. Jia, G.F. Pan, G.F. Song, J.F. Wang, G. Yang, H. Zhang, T.J. Zhang
CIAE, Beijing, People’s Republic of China

Up to 430 µA beam intensity was obtained in 10 MeV CRM cyclotron (CYCIAE-CRM) at China Institute of Atomic Energy (CIAE) in 2010. Whereafter, CIAE built a series of 14 MeV high intensity external ion source cyclotrons for medical isotope application and its relevant research. Compared with research cyclotron facility, cyclotron for industrialization application requires higher level of safety, usability and stability. Therefore, mechanical and electrical system integration and optimum are applied in the cyclotron design and commissioning. Electrical devices of cyclotron, including power supply, RF amplifier and PLC controller, are integrated into four standard industrial shielding cabinets with electromagnetic compatibility (EMC) design to improve electromagnetic interference and operation stability. Besides, earthing system is rearranged in regular laboratory maintenance period to minimize electromagnetic coupling of different signal systems. Based on the previous compact system integration, communication system is integrated into each electrical device as well and could be operated in local and remote mode for the convenience of commissioning. Industrial Ethernet standard PROFINET is adopted as communication protocol to improve the efficiency of protocol interaction towards millisecond level. Regarding RF system, start-up sequence of LLRF is optimized to increase uptime and reliability. The commissioning is also presented in this paper.

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-WEPO010

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Received ※ 06 December 2022 — Revised ※ 31 December 2022 — Accepted ※ 09 February 2023 — Issue date ※ 30 October 2023

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WEPO012

Upgrade of Beam Diagnostic Systems at JULIC Cyclotron

cyclotron, diagnostics, controls, experiment

231

Y. Valdau, O. Felden, R. Gebel, U.G. Giesen, R.L. Lohoff, H. Soltner
FZJ, Jülich, Germany
N.-O. Fröhlich
DESY, Hamburg, Germany
P.J. Niedermayer
GSI, Darmstadt, Germany

The cyclotron JULIC is used as injector for the COSY storage ring since almost 30 years. Beams of polarized and unpolarised H⁻ and D- ions are routinely accelerated using cyclotron HF system up to 45 and 55 MeV, respectively. Meanwhile, low energy beams from JULIC become more frequently used by the experimentalists, especially at the new low energy beam line, which connects cyclotron with the large Big Karl experimental hall. To meet the requirements of the cyclotron users a diagnostic system upgrade program has been started at the JULIC cyclotron. All destructive beam diagnostic systems (Faraday Cups) have been equipped with a new produced by CAEN TetrAMM based beam diagnostic systems. All TetrAMM devices are implemented into the common COSY Control System with EPICS readout and archiving environment. The cyclotron NMR field control system has been upgraded using the newest sensor from Metrolab (PT2026), which allows operation in complete field range of the JULIC cyclotron, without changing the sensor. A new Lock In-Amplifier based Data Acquisition System has been used for nondestructive beam intensity and position diagnostic at the Big Karl beam line. First tests have demonstrated possibility to measure current and position of the 10 nA DC beam using this technique. Since relatively long time cyclotron users were occasionally disturbed by unwanted 33 Hz noise at the output of the cyclotron. Using non-contact laser vibration measurements system OMETRON S16, vibrations in this frequency range were detected on the internal elements of the HF-System. The source of these vibrations, located in the cyclotron bunker, have been identified and removed. In this contribution, the status of the JULIC cyclotron diagnostic system upgrade project will be presented.

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-WEPO012

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Received ※ 31 December 2022 — Revised ※ 18 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 14 April 2023

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THBI02

Status Report on the Cyclotron Injector for HIMM

cyclotron, extraction, ECR, ion-source

269

G.L. Dou, X. Chen, C.C. Li, L.T. Sun, B. Wang, X.W. Wang, L. Yang, Q.G. Yao, H.W. Zhao
IMP/CAS, Lanzhou, People’s Republic of China

HIMM (Heavy Ion Medical Machine) is an accelerator complex designed by Institute of Modern Physics, CAS, which accelerates carbon ions to the energy 400 MeV/A for tumor therapy. The main accelerator of HIMM is a synchronous accelerator. As a special design, we use a cyclotron as the injector of the synchrontron. The cyclotron is a compact cyclotron to accelerate C¹²⁵⁺ ions to the energy 6.8 MeV/A, and the extracted beam intensity of the cyclotron is 10 eµA. For stability and simplicity operation, we use two identical permanent magnet ECR ion sources in the axial injection line, that the ion sources can interchange with each other rapidly with the same performance, and only one main exciting coil with no trim coils in the cyclotron magnet. Up to now, three cyclotrons have been accomplished, one of them was operated in Gansu Wuwei Tumor Hospital to treat more than six hundred cancer patients in the last two and a half years, the other one had been fully commissioned in Lanzhou Heavy Ion Hospital about two years ago. After a short introduction to the heavy ion cancer treatment facility development in China, this paper will present operation status of the cyclotrons for HIMM. Typical performance and on-line operation reliability will be discussed.

Slides THBI02 [2.031 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-THBI02

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Received ※ 07 December 2022 — Revised ※ 24 July 2023 — Accepted ※ 03 August 2023 — Issue date ※ 13 October 2023

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FRAI01

Developments and Prospects of FFAs at RAL

lattice, dynamic-aperture, resonance, controls

351

S. Machida
STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom

Fixed Field Alternating Gradient Accelerator (FFA) has several advantages as a proton driver for high beam power applications. In particular, control of pulse structure can ben easily done by RF gymnastics. FFA is a sustainable (energy efficient) accelerator with the main magnets with DC operation. We will discuss the development of a FFA physics design for the ISIS (spallation neutron source) and its prototype.

Slides FRAI01 [12.227 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-FRAI01

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Received ※ 09 December 2022 — Revised ※ 08 February 2023 — Accepted ※ 03 March 2023 — Issue date ※ 16 May 2023

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