BIW2012 - List of Authors (Mols, J.-Ph.)

Paper	Title	Page
TUPG021	Design and Test of the LIPAc IPM	180
	J. Egberts, F. Jeanneau, T. Papaevangelou CEA, Gif-sur-Yvette, France P. Abbon, G. Adroit, R. Gobin, J.-F. Gournay, J. Marroncle, C.M. Mateo, J.-Ph. Mols, F. Senée CEA/DSM/IRFU, France
	Funding: Marie Curie Action of the E.U., contract PITN-GA-2008-215080. The linear IFMIF prototype accelerator (LIPAc) will be commissioned in Rokkasho, Japan, shortly. Due to its high beam power of over 1 MW and its tremendous continuous wave beam current of 125 mA, non-interceptive profilers are required. We present the design and test of the LIPAc ionization profile monitor. Due to the very high space charge, LIPAc is designed in a very compact manner which hardly leaves any room for diagnostics. The IPM was designed using FEM simulations to achieve the optimal electric field keeping the tight space requirements of LIPAc. Due to the limited space available, we had to abstain from using a magnetic guidance field and collect ions instead of electrons. To cope with the strong space charge forces of the beam, we have developed a software algorithm that aims to not only scale the distorted measured profile to its original size, but to fully reconstruct the original beam profile. This algorithm has been tested at SILHI, a high intensity ion source at CEA Saclay, France, where highest space charge forces can be achieved, and the results will be presented as well.

Paper

Title

Page

Design and Test of the LIPAc IPM

180

J. Egberts, F. Jeanneau, T. Papaevangelou
CEA, Gif-sur-Yvette, France
P. Abbon, G. Adroit, R. Gobin, J.-F. Gournay, J. Marroncle, C.M. Mateo, J.-Ph. Mols, F. Senée
CEA/DSM/IRFU, France

Funding: Marie Curie Action of the E.U., contract PITN-GA-2008-215080.
The linear IFMIF prototype accelerator (LIPAc) will be commissioned in Rokkasho, Japan, shortly. Due to its high beam power of over 1 MW and its tremendous continuous wave beam current of 125 mA, non-interceptive profilers are required. We present the design and test of the LIPAc ionization profile monitor. Due to the very high space charge, LIPAc is designed in a very compact manner which hardly leaves any room for diagnostics. The IPM was designed using FEM simulations to achieve the optimal electric field keeping the tight space requirements of LIPAc. Due to the limited space available, we had to abstain from using a magnetic guidance field and collect ions instead of electrons. To cope with the strong space charge forces of the beam, we have developed a software algorithm that aims to not only scale the distorted measured profile to its original size, but to fully reconstruct the original beam profile. This algorithm has been tested at SILHI, a high intensity ion source at CEA Saclay, France, where highest space charge forces can be achieved, and the results will be presented as well.