HIAT2022 - List of Keywords (extraction)

Paper	Title	Other Keywords	Page
TU2I2	Development and Commissioning of the K500 Superconducting Heavy Ion Cyclotron	cyclotron, cavity, MMI, resonance	46
	S. Som, A. Bandyopadhyay, S. Bandyopadhyay, S. Bhattacharya, P. Bhattacharyya, T. Bhattacharyya, U. Bhunia, N. Chaddha, J. Debnath, M.K. Dey, A. Dutta Gupta, S. Ghosh, A. Mandal, P.Y. Nabhiraj, C. Nandi, Z.A. Naser, S. Pal, S. Pal, U. Panda, J. Pradhan, A. Roy, S. Saha, S. Seth, S.K. Thakur VECC, Kolkata, India
	Funding: Work supported by the DAE, Government of India. The K500 Superconducting Cyclotron (SCC) has been developed indigenously and commissioned at VECC. The three-phase Radio-Frequency (RF) system of SCC, consists of three half-wave cavities placed vertically 120 deg. apart. Each half-wave cavity has two quarter-wave cylindrical cavities tied together at the centre and symmetrically placed about median plane of the cyclotron. Each quarter-wave cavity is made up of a short circuited non-uniform coaxial transmission line (called "dee-stem") terminated by accelerating electrode (called "Dee"). The SCC, operating in the range 9 to 27 MHz, has amplitude and phase stability within 100 ppm and 0.1 deg. respectively. The overview of all the subsystems of the cyclotron along with low-level RF (LLRF), high and low power RF amplifiers, cavity analysis, absolute Dee voltage measurement using X-ray method, amplitude and phase control loops will be presented in the talk. The commissioning of the cyclotron with first harmonic Nitrogen⁴⁺ beam extracted at 252 MeV, while operating at 14 MHz RF frequency, along with the correction of first harmonic magnetic field error by repositioning the cryostat within 120 micron accuracy, will be discussed briefly.
	Slides TU2I2 [18.037 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2022-TU2I2
About •	Received ※ 15 June 2022 — Revised ※ 27 June 2022 — Accepted ※ 10 August 2022 — Issue date ※ 05 September 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUP17	Beam Dynamics and Space Charge Studies for the InnovaTron Cyclotron	cyclotron, ion-source, space-charge, plasma	108
	G. D’Agostino, W.J.G.M. Kleeven IBA, Louvain-la-Neuve, Belgium
	At IBA a high-intensity compact self-extracting cyclotron is being studied. There is no dedicated extraction device but instead, a special shaping of the magnetic iron and the use of harmonic coils to create large turn-separation. Proton currents up to 5 mA are aimed for. This would open new ways for large-scale production of medical radioisotopes. The main features of the cyclotron are presented. A major variable of the beam simulations is the space charge effect in the cyclotron center. Using the SCALA-solver of Opera3D, we attempt to find the ion source plasma meniscus and the beam phase space and current extracted from it. With these properties known, we study the bunch formation and acceleration under high space charge condition with our in-house tracking code AOC. We also discuss a new tool that automatizes optimization of cyclotron settings for maximizing beam properties such as extraction efficiency. *Work supported by the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 886190
	Poster TUP17 [2.549 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2022-TUP17
About •	Received ※ 28 June 2022 — Revised ※ 10 August 2022 — Accepted ※ 29 September 2022 — Issue date ※ 29 September 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TU2I2

Development and Commissioning of the K500 Superconducting Heavy Ion Cyclotron

cyclotron, cavity, MMI, resonance

46

S. Som, A. Bandyopadhyay, S. Bandyopadhyay, S. Bhattacharya, P. Bhattacharyya, T. Bhattacharyya, U. Bhunia, N. Chaddha, J. Debnath, M.K. Dey, A. Dutta Gupta, S. Ghosh, A. Mandal, P.Y. Nabhiraj, C. Nandi, Z.A. Naser, S. Pal, S. Pal, U. Panda, J. Pradhan, A. Roy, S. Saha, S. Seth, S.K. Thakur
VECC, Kolkata, India

Funding: Work supported by the DAE, Government of India.
The K500 Superconducting Cyclotron (SCC) has been developed indigenously and commissioned at VECC. The three-phase Radio-Frequency (RF) system of SCC, consists of three half-wave cavities placed vertically 120 deg. apart. Each half-wave cavity has two quarter-wave cylindrical cavities tied together at the centre and symmetrically placed about median plane of the cyclotron. Each quarter-wave cavity is made up of a short circuited non-uniform coaxial transmission line (called "dee-stem") terminated by accelerating electrode (called "Dee"). The SCC, operating in the range 9 to 27 MHz, has amplitude and phase stability within 100 ppm and 0.1 deg. respectively. The overview of all the subsystems of the cyclotron along with low-level RF (LLRF), high and low power RF amplifiers, cavity analysis, absolute Dee voltage measurement using X-ray method, amplitude and phase control loops will be presented in the talk. The commissioning of the cyclotron with first harmonic Nitrogen⁴⁺ beam extracted at 252 MeV, while operating at 14 MHz RF frequency, along with the correction of first harmonic magnetic field error by repositioning the cryostat within 120 micron accuracy, will be discussed briefly.

Slides TU2I2 [18.037 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2022-TU2I2

About •

Received ※ 15 June 2022 — Revised ※ 27 June 2022 — Accepted ※ 10 August 2022 — Issue date ※ 05 September 2022

Cite •

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

TUP17

Beam Dynamics and Space Charge Studies for the InnovaTron Cyclotron

cyclotron, ion-source, space-charge, plasma

108

G. D’Agostino, W.J.G.M. Kleeven
IBA, Louvain-la-Neuve, Belgium

At IBA a high-intensity compact self-extracting cyclotron is being studied. There is no dedicated extraction device but instead, a special shaping of the magnetic iron and the use of harmonic coils to create large turn-separation. Proton currents up to 5 mA are aimed for. This would open new ways for large-scale production of medical radioisotopes. The main features of the cyclotron are presented. A major variable of the beam simulations is the space charge effect in the cyclotron center. Using the SCALA-solver of Opera3D, we attempt to find the ion source plasma meniscus and the beam phase space and current extracted from it. With these properties known, we study the bunch formation and acceleration under high space charge condition with our in-house tracking code AOC. We also discuss a new tool that automatizes optimization of cyclotron settings for maximizing beam properties such as extraction efficiency.
*Work supported by the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 886190

Poster TUP17 [2.549 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2022-TUP17

About •

Received ※ 28 June 2022 — Revised ※ 10 August 2022 — Accepted ※ 29 September 2022 — Issue date ※ 29 September 2022

Cite •

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