Cyclotrons2013 - List of Authors (Meot, F.)

Paper

Title

Page

End-to-End 6-D Tracking Using EMMA On-Line Model

70

F. Méot
BNL, Upton, Long Island, New York, USA
D.J. Kelliher, S. Machida
STFC/RAL/ASTeC, Chilton, Didcot, Oxon, United Kingdom
B.J.A. Shepherd
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom

Numerical simulation of 6-dimensional, end-to-end beam transport in the prototype EMMA linear FFAG is presented and discussed. The simulation uses the 3-D OPERA field maps of the 42 cells, including the specific injection and extraction cells. It starts from upstream of the injection septum, and ends downstream of the extraction septum after 10-turn "serpentine" acceleration from 10 to 20 MeV. It includes the time function of the septa and injection and extraction pairs of kickers, and possible stray fields.

WEPPT027

Design of the Injection into the 800 MeV/amu High Power Cyclotron

375

M. Haj Tahar, F. Méot
BNL, Upton, Long Island, New York, USA
L. Calabretta
INFN/LNS, Catania, Italy
A. Calanna
CSFNSM, Catania, Italy

Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
We present the design of the injection line into a separated sector cyclotron (SSC) aimed at the production of a high power beam of 800MeV/amu molecular H²⁺ for ADS-Reactor applications. To work out the beam line parameters and beam dynamics simulations, including the first accelerated turns, we used the ray-tracing code Zgoubi and the OPERA magnetic field map of the cyclotron sector*. We simulated the injection path of the H²⁺ and evaluated both radial and vertical injection schemes in order to evaluate the parameters so derived. The paper details and discusses various aspects of that design study and its outcomes.
* A.Calanna et al., A multi-megawatt ring cyclotron to search for CP violation in the neutrino sector, April 2011, e-Print: arXiv:1104.4985

WEPPT029

The Cyclotron Complex for the DAEδALUS Experiment

381

A. Calanna, D. Campo, J.M. Conrad
MIT, Cambridge, Massachusetts, USA
L. Calabretta
INFN/LNS, Catania, Italy
M. Haj Tahar, F. Méot
BNL, Upton, Long Island, New York, USA

The cyclotron complex for the DAEδALUS CP-Violation neutrino experiment consists of a compact cyclotron able to accelerate high-current (5 electrical milliamp) H²⁺ beams up to an energy of 60 MeV/amu, cleanly extract this beam with a conventional septum arrangement, and transport it to a superconducting ring cyclotron able to accelerate the beam up to 800 MeV/amu. H²⁺ is dissociated with thin stripping foils for efficient extraction as protons for transport to a megawatt-class target for neutrino production. The injection cyclotron will be similar to the one proposed for the IsoDAR experiment (Paper WEPPT029). The Ring cyclotron is similar in size and engineering concept to the SRC at RIKEN. Space-charge dominated beam dynamics simulations using OPAL have been performed for an 8-sector geometry, and indicate acceptable transmission and low beam losses. Subsequent engineering magnet-design studies of Minervini et al. point to a 6-sector configuration as more practical. Recalculation of the beam dynamics for this new configuration will be performed in the coming year. Results of the studies conducted to date will be presented.

WE4PB02

An All-Purpose Accelerator Code, Zgoubi

426

F. Méot
BNL, Upton, Long Island, New York, USA

Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
The ray-tracing code Zgoubi* has long been 6D-tracking through all possible types of fixed field rings**, including, recently, 6D transmission from injection-up to extraction-down in high power cyclotrons in the frame of ADS-Reactor R/D. This is to be added to the long exploited many other capabilities of the code as spin transport, in-flight decay, synchrotron radiation energy loss, etc. An overview will be given, including recent space-charge developments, with illustration including recent high power cyclotron applications.
*http://sourceforge.net/projects/zgoubi/, http://www.osti.gov/bridge/basicsearch.jsp
**6-D beam dynamics simulations in FFAGs, F. Meot, ICFA Beam Dyn. Newslett.43:44-50 (2007)

Slides WE4PB02 [4.414 MB]

Paper	Title	Page
MOPPT018	End-to-End 6-D Tracking Using EMMA On-Line Model	70
	F. Méot BNL, Upton, Long Island, New York, USA D.J. Kelliher, S. Machida STFC/RAL/ASTeC, Chilton, Didcot, Oxon, United Kingdom B.J.A. Shepherd STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
	Numerical simulation of 6-dimensional, end-to-end beam transport in the prototype EMMA linear FFAG is presented and discussed. The simulation uses the 3-D OPERA field maps of the 42 cells, including the specific injection and extraction cells. It starts from upstream of the injection septum, and ends downstream of the extraction septum after 10-turn "serpentine" acceleration from 10 to 20 MeV. It includes the time function of the septa and injection and extraction pairs of kickers, and possible stray fields.

WEPPT027	Design of the Injection into the 800 MeV/amu High Power Cyclotron	375
	M. Haj Tahar, F. Méot BNL, Upton, Long Island, New York, USA L. Calabretta INFN/LNS, Catania, Italy A. Calanna CSFNSM, Catania, Italy
	Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. We present the design of the injection line into a separated sector cyclotron (SSC) aimed at the production of a high power beam of 800MeV/amu molecular H²⁺ for ADS-Reactor applications. To work out the beam line parameters and beam dynamics simulations, including the first accelerated turns, we used the ray-tracing code Zgoubi and the OPERA magnetic field map of the cyclotron sector. We simulated the injection path of the H²⁺ and evaluated both radial and vertical injection schemes in order to evaluate the parameters so derived. The paper details and discusses various aspects of that design study and its outcomes. A.Calanna et al., A multi-megawatt ring cyclotron to search for CP violation in the neutrino sector, April 2011, e-Print: arXiv:1104.4985

WEPPT029	The Cyclotron Complex for the DAEδALUS Experiment	381
	A. Calanna, D. Campo, J.M. Conrad MIT, Cambridge, Massachusetts, USA L. Calabretta INFN/LNS, Catania, Italy M. Haj Tahar, F. Méot BNL, Upton, Long Island, New York, USA
	The cyclotron complex for the DAEδALUS CP-Violation neutrino experiment consists of a compact cyclotron able to accelerate high-current (5 electrical milliamp) H²⁺ beams up to an energy of 60 MeV/amu, cleanly extract this beam with a conventional septum arrangement, and transport it to a superconducting ring cyclotron able to accelerate the beam up to 800 MeV/amu. H²⁺ is dissociated with thin stripping foils for efficient extraction as protons for transport to a megawatt-class target for neutrino production. The injection cyclotron will be similar to the one proposed for the IsoDAR experiment (Paper WEPPT029). The Ring cyclotron is similar in size and engineering concept to the SRC at RIKEN. Space-charge dominated beam dynamics simulations using OPAL have been performed for an 8-sector geometry, and indicate acceptable transmission and low beam losses. Subsequent engineering magnet-design studies of Minervini et al. point to a 6-sector configuration as more practical. Recalculation of the beam dynamics for this new configuration will be performed in the coming year. Results of the studies conducted to date will be presented.

WE4PB02	An All-Purpose Accelerator Code, Zgoubi	426
	F. Méot BNL, Upton, Long Island, New York, USA
	Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. The ray-tracing code Zgoubi* has long been 6D-tracking through all possible types of fixed field rings*, including, recently, 6D transmission from injection-up to extraction-down in high power cyclotrons in the frame of ADS-Reactor R/D. This is to be added to the long exploited many other capabilities of the code as spin transport, in-flight decay, synchrotron radiation energy loss, etc. An overview will be given, including recent space-charge developments, with illustration including recent high power cyclotron applications. http://sourceforge.net/projects/zgoubi/, http://www.osti.gov/bridge/basicsearch.jsp **6-D beam dynamics simulations in FFAGs, F. Meot, ICFA Beam Dyn. Newslett.43:44-50 (2007)
	Slides WE4PB02 [4.414 MB]