IPAC2015 - List of Authors (Pivi, M.T.F.)

Paper	Title	Page
MOBB1	Status of the Proton Beam Commissioning at the MedAustron Ion Beam Therapy Centre	28
	A. Garonna, M. Kronberger, T.K.D. Kulenkampff, C. Kurfürst, F. Osmić, L.C. Penescu, M.T.F. Pivi, C. Schmitzer, P. Urschütz, A. Wastl EBG MedAustron, Wr. Neustadt, Austria
	The MedAustron accelerator, located in Wiener Neustadt (Austria), will deliver clinical beams of protons (60-250 MeV) and carbon ions (120-400 MeV/n) to three ion beam therapy irradiation rooms (IR). Clinical beams and proton beams up to 800 MeV will be provided in a fourth IR, dedicated to non-clinical research. A slow-extracted proton beam of maximum clinical energy has been delivered for the first time in IR3 in October 2014, thus providing the technical proof-of-principle of the accelerator chain. The recent related beam commissioning efforts included setting up of the multi-turn injection into the synchrotron at 7 MeV, the acceleration on first harmonic up to 250 MeV, the slow extraction on the third integer resonance with a betatron core and the matching of the High Energy Beam Transfer line. The accelerator optimization phase leading to IR3 medical commissioning of proton beams is ongoing. The main characteristics of the MedAustron accelerator system will be presented, along with the results obtained during the commissioning process.
	Slides MOBB1 [6.596 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOBB1
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WEXB2	Measurement and Analysis of Electron Cloud Induced Emittance Growth at CesrTA	2390
	K.G. Sonnad, L.Y. Bartnik, M.G. Billing, G. Dugan, M.J. Forster Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA J.W. Flanagan, K. Ohmi KEK, Ibaraki, Japan R. Holtzapple, K.E. McArdle, M.I. Miller CalPoly, San Luis Obispo, California, USA L. Pentecost Colgate University, Hamilton, New York, USA M.T.F. Pivi EBG MedAustron, Wr. Neustadt, Austria S. Tucker Cal Poly, San Luis Obispo, California, USA
	CesrTA is a test accelerator facility at Cornell University that has been configured to study physics associated with electron and positron damping rings. Electron cloud effects is a concern for positron beams for such damping rings. The presentation will give an overview of recent measurements and simulation results for CesrTA. The measurement conditions were set up in order to study single bunch phenomena by observing a "Witness bunch" behind a train of positron bunches. The beam size and the turn by turn spectra were obeserved for the witness bunch under different conditions. Simulations were performed under similar conditions using the program CMAD.
	Slides WEXB2 [2.263 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEXB2
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPF002	Space Charge Effect Estimation for Synchrotrons with Third-order Resonant Extraction	3677
	M.T.F. Pivi, A. Garonna EBG MedAustron, Wr. Neustadt, Austria
	In proton and ion storage rings using the third-order resonance extraction mechanism, beam particles are slowly extracted from the ring when reaching the resonance stop-band. Typically at beam injection, the horizontal tune is set to a value close to the resonance value. The tune is then moved towards the resonance value to trigger beam extraction in a controlled way. The tune shift generated by space charge forces needs to be taken into account. For this, the incoherent space-charge tune shift for protons of the MedAustron accelerator main ring has been evaluated. This has been performed by multi-particle tracking using an optics model based on MADX, considering a realistic Gaussian beam distribution and exact non-linear space charge electric field forces. The MedAustron accelerator is in the beam commissioning phase and is planned to start medical commissioning at the end of 2015.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-THPF002
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Status of the Proton Beam Commissioning at the MedAustron Ion Beam Therapy Centre

28

A. Garonna, M. Kronberger, T.K.D. Kulenkampff, C. Kurfürst, F. Osmić, L.C. Penescu, M.T.F. Pivi, C. Schmitzer, P. Urschütz, A. Wastl
EBG MedAustron, Wr. Neustadt, Austria

The MedAustron accelerator, located in Wiener Neustadt (Austria), will deliver clinical beams of protons (60-250 MeV) and carbon ions (120-400 MeV/n) to three ion beam therapy irradiation rooms (IR). Clinical beams and proton beams up to 800 MeV will be provided in a fourth IR, dedicated to non-clinical research. A slow-extracted proton beam of maximum clinical energy has been delivered for the first time in IR3 in October 2014, thus providing the technical proof-of-principle of the accelerator chain. The recent related beam commissioning efforts included setting up of the multi-turn injection into the synchrotron at 7 MeV, the acceleration on first harmonic up to 250 MeV, the slow extraction on the third integer resonance with a betatron core and the matching of the High Energy Beam Transfer line. The accelerator optimization phase leading to IR3 medical commissioning of proton beams is ongoing. The main characteristics of the MedAustron accelerator system will be presented, along with the results obtained during the commissioning process.

Slides MOBB1 [6.596 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOBB1

Export •

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

WEXB2

Measurement and Analysis of Electron Cloud Induced Emittance Growth at CesrTA

2390

K.G. Sonnad, L.Y. Bartnik, M.G. Billing, G. Dugan, M.J. Forster
Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
J.W. Flanagan, K. Ohmi
KEK, Ibaraki, Japan
R. Holtzapple, K.E. McArdle, M.I. Miller
CalPoly, San Luis Obispo, California, USA
L. Pentecost
Colgate University, Hamilton, New York, USA
M.T.F. Pivi
EBG MedAustron, Wr. Neustadt, Austria
S. Tucker
Cal Poly, San Luis Obispo, California, USA

CesrTA is a test accelerator facility at Cornell University that has been configured to study physics associated with electron and positron damping rings. Electron cloud effects is a concern for positron beams for such damping rings. The presentation will give an overview of recent measurements and simulation results for CesrTA. The measurement conditions were set up in order to study single bunch phenomena by observing a "Witness bunch" behind a train of positron bunches. The beam size and the turn by turn spectra were obeserved for the witness bunch under different conditions. Simulations were performed under similar conditions using the program CMAD.

Slides WEXB2 [2.263 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEXB2

Export •

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

THPF002

Space Charge Effect Estimation for Synchrotrons with Third-order Resonant Extraction

3677

M.T.F. Pivi, A. Garonna
EBG MedAustron, Wr. Neustadt, Austria

In proton and ion storage rings using the third-order resonance extraction mechanism, beam particles are slowly extracted from the ring when reaching the resonance stop-band. Typically at beam injection, the horizontal tune is set to a value close to the resonance value. The tune is then moved towards the resonance value to trigger beam extraction in a controlled way. The tune shift generated by space charge forces needs to be taken into account. For this, the incoherent space-charge tune shift for protons of the MedAustron accelerator main ring has been evaluated. This has been performed by multi-particle tracking using an optics model based on MADX, considering a realistic Gaussian beam distribution and exact non-linear space charge electric field forces. The MedAustron accelerator is in the beam commissioning phase and is planned to start medical commissioning at the end of 2015.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-THPF002

Export •

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