ICAP2012 - List of Authors (Li, Z.)

Paper

Title

Page

Analyzing Multipacting Problems in Accelerators using ACE3P on High Performance Computers

54

L. Ge, C. Ko, K.H. Lee, Z. Li, C.-K. Ng, L. Xiao
SLAC, Menlo Park, California, USA

Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661
Track3P is the particle tracking module of ACE3P, a 3D parallel finite element electromagnetic code suite developed at SLAC which has been implemented on the US DOE supercomputers at NERSC to simulate large-scale complex accelerator designs. Using the higher-order cavity fields generated by ACE3P codes, Track3P has been used for analyzing multipacting (MP) in accelerator cavities. The prediction of the MP barriers in the ICHIRO cavity at KEK was the first Track3P benchmark against measurements. Using a large number of processors, Track3P can scan through the field gradient and cavity surface efficiently, and its comprehensive postprocessing tool allows the identifications of both the hard and soft MP barriers and the locations of MP activities. Results from applications of this high performance simulation capability to accelerators such as the Quarter Wave Resonator for FRIB, the 704 MHz SRF gun cavity for BNL ERL and the Muon cooling cavity for Muon Collider will be presented.

THP01

SRF Cavity and Cryomodule Design with ACE3P

C. Ko, L. Ge, K.H. Lee, Z. Li, C.-K. Ng, L. Xiao
SLAC, Menlo Park, California, USA

Funding: USDOE
Based on the conformal higher finite-element method implemented on parallel computing platforms, ACE3P is extending its capabilities to meet the computational needs for the design of SRF cavities and cryomodules. These requirements include accurate electromagnetic field computations to obtain the optimal cavity shape for maximum accelerating gradient and to find the high order modes (HOMs) excited by the bunch train in a cavity chain. In addition, multipacting simulation is important to the SRF cavity and coupler development as well as electro-mechanical calculations to model the Lorentz force detuning. Results from ACE3P efforts that address these effects for the design of SRF cavity and cryomodule will be presented.

Paper	Title	Page
MOSDI1	Analyzing Multipacting Problems in Accelerators using ACE3P on High Performance Computers	54
	L. Ge, C. Ko, K.H. Lee, Z. Li, C.-K. Ng, L. Xiao SLAC, Menlo Park, California, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661 Track3P is the particle tracking module of ACE3P, a 3D parallel finite element electromagnetic code suite developed at SLAC which has been implemented on the US DOE supercomputers at NERSC to simulate large-scale complex accelerator designs. Using the higher-order cavity fields generated by ACE3P codes, Track3P has been used for analyzing multipacting (MP) in accelerator cavities. The prediction of the MP barriers in the ICHIRO cavity at KEK was the first Track3P benchmark against measurements. Using a large number of processors, Track3P can scan through the field gradient and cavity surface efficiently, and its comprehensive postprocessing tool allows the identifications of both the hard and soft MP barriers and the locations of MP activities. Results from applications of this high performance simulation capability to accelerators such as the Quarter Wave Resonator for FRIB, the 704 MHz SRF gun cavity for BNL ERL and the Muon cooling cavity for Muon Collider will be presented.

THP01	SRF Cavity and Cryomodule Design with ACE3P
	C. Ko, L. Ge, K.H. Lee, Z. Li, C.-K. Ng, L. Xiao SLAC, Menlo Park, California, USA
	Funding: USDOE Based on the conformal higher finite-element method implemented on parallel computing platforms, ACE3P is extending its capabilities to meet the computational needs for the design of SRF cavities and cryomodules. These requirements include accurate electromagnetic field computations to obtain the optimal cavity shape for maximum accelerating gradient and to find the high order modes (HOMs) excited by the bunch train in a cavity chain. In addition, multipacting simulation is important to the SRF cavity and coupler development as well as electro-mechanical calculations to model the Lorentz force detuning. Results from ACE3P efforts that address these effects for the design of SRF cavity and cryomodule will be presented.