ICAP2012 - List of Keywords (solenoid)

Paper	Title	Other Keywords	Page
MOACC2	Simulation of Electron Cloud Instability	electron, simulation, positron, betatron	26
	K. Ohmi KEK, Ibaraki, Japan
	We discuss coupled bunch and single bunch instabilities caused by electron cloud in positron and proton circular accelerator. We focus unstable mode spectrum which characterizes the instabilities.
	Slides MOACC2 [3.432 MB]

TUAAI2	A Massively Parallel General Purpose Multi-objective Optimization Framework, Applied to Beam Dynamic Studies	simulation, emittance, status, controls	62
	Y. Ineichen, A. Adelmann PSI, Villigen, Switzerland P. Arbenz ETH, Zurich, Switzerland C. Bekas, A. Curioni IBM Research - Zurich, Rueschlikon, Switzerland
	Particle accelerators are invaluable tools for research in basic and applied sciences. The successful design, commissioning, and operation of accelerator facilities is non trivial. We implemented a framework for general simulation-based multi-optimization methods automating the investigation of optimal sets of machine parameters. In order to solve the emerging, huge problems we propose a massively-parallel master/slave approach. We employ the framework to identify optimal parameters of existing and new accelerators at PSI.
	Slides TUAAI2 [0.694 MB]

WEACI1	Design and Applications of the Bmad Library for the Simulation of Particle Beams and X-Rays	simulation, lattice, controls, quadrupole	179
	D. Sagan CLASSE, Ithaca, New York, USA
	The Bmad software library has been developed for simulations of high-energy particle beams along with simulations of the x-rays produced by the particle beams. Owing to its modular, object-oriented design, Bmad is now used in a number of programs at Cornell's Laboratory for Elementary-Particle Physics. This paper will discuss the design of the Bmad library. Features such as the ability to have overlapping elements, the ability to define in a lattice file the action of control-room ‘‘knobs'', and the ability to choose from a number of different tracking options on an element-by-element basis have all contributed to a versatile simulation environment that eases the task of programmers and users using Bmad. Also discussed is the uses that Bmad has been put to including synchrotron radiation tracking with reflections from the vacuum chamber walls, spin tracking, beam break-up instability, intra-beam scattering, etc. Besides simulation and design programs, Bmad can be used in control programs to do such things as orbit and Twiss correction calculations.
	Slides WEACI1 [1.884 MB]

WEACC2	Space Charge Effects and Focusing Methods for Laser Accelerated Ion Beams	space-charge, simulation, focusing, laser	184
	P. Schmidt, O. Boine-Frankenheim, V. Kornilov, P. Spädtke GSI, Darmstadt, Germany
	Funding: GSI Helmholtzzentrum für Schwerionenforschung Planckstr. 1 D-64291 Darmstadt We employ the 3D PIC simulation code VORPAL to study the transport of laser accelerated proton beams in the framework of the LIGHT project at GSI. Initially the beam is assumed to be neutralized by co-moving electrons. For different initial beam distribution models we study the effect of space charge after the electrons have been removed. The results of the simulations are compared to an envelope model. We derive conditions in terms of the beam parameters and the distance from the production target for a safe removal of the electrons. As an option for the controlled de-neutralization of the beam a thin metallic foil is studied. Besides space charge, we also account for the effect of secondary electrons generated from the foil.
	Slides WEACC2 [0.993 MB]

Paper

Title

Other Keywords

Page

MOACC2

Simulation of Electron Cloud Instability

electron, simulation, positron, betatron

26

K. Ohmi
KEK, Ibaraki, Japan

We discuss coupled bunch and single bunch instabilities caused by electron cloud in positron and proton circular accelerator. We focus unstable mode spectrum which characterizes the instabilities.

Slides MOACC2 [3.432 MB]

TUAAI2

A Massively Parallel General Purpose Multi-objective Optimization Framework, Applied to Beam Dynamic Studies

simulation, emittance, status, controls

62

Y. Ineichen, A. Adelmann
PSI, Villigen, Switzerland
P. Arbenz
ETH, Zurich, Switzerland
C. Bekas, A. Curioni
IBM Research - Zurich, Rueschlikon, Switzerland

Particle accelerators are invaluable tools for research in basic and applied sciences. The successful design, commissioning, and operation of accelerator facilities is non trivial. We implemented a framework for general simulation-based multi-optimization methods automating the investigation of optimal sets of machine parameters. In order to solve the emerging, huge problems we propose a massively-parallel master/slave approach. We employ the framework to identify optimal parameters of existing and new accelerators at PSI.

Slides TUAAI2 [0.694 MB]

WEACI1

Design and Applications of the Bmad Library for the Simulation of Particle Beams and X-Rays

simulation, lattice, controls, quadrupole

179

D. Sagan
CLASSE, Ithaca, New York, USA

The Bmad software library has been developed for simulations of high-energy particle beams along with simulations of the x-rays produced by the particle beams. Owing to its modular, object-oriented design, Bmad is now used in a number of programs at Cornell's Laboratory for Elementary-Particle Physics. This paper will discuss the design of the Bmad library. Features such as the ability to have overlapping elements, the ability to define in a lattice file the action of control-room ‘‘knobs'', and the ability to choose from a number of different tracking options on an element-by-element basis have all contributed to a versatile simulation environment that eases the task of programmers and users using Bmad. Also discussed is the uses that Bmad has been put to including synchrotron radiation tracking with reflections from the vacuum chamber walls, spin tracking, beam break-up instability, intra-beam scattering, etc. Besides simulation and design programs, Bmad can be used in control programs to do such things as orbit and Twiss correction calculations.

Slides WEACI1 [1.884 MB]

WEACC2

Space Charge Effects and Focusing Methods for Laser Accelerated Ion Beams

space-charge, simulation, focusing, laser

184

P. Schmidt, O. Boine-Frankenheim, V. Kornilov, P. Spädtke
GSI, Darmstadt, Germany

Funding: GSI Helmholtzzentrum für Schwerionenforschung Planckstr. 1 D-64291 Darmstadt
We employ the 3D PIC simulation code VORPAL to study the transport of laser accelerated proton beams in the framework of the LIGHT project at GSI. Initially the beam is assumed to be neutralized by co-moving electrons. For different initial beam distribution models we study the effect of space charge after the electrons have been removed. The results of the simulations are compared to an envelope model. We derive conditions in terms of the beam parameters and the distance from the production target for a safe removal of the electrons. As an option for the controlled de-neutralization of the beam a thin metallic foil is studied. Besides space charge, we also account for the effect of secondary electrons generated from the foil.

Slides WEACC2 [0.993 MB]