IPAC2013 - List of Authors (Kim, M.)

Paper	Title	Page
THPFI040	DEVELOPMENT OF A TARGET SYSTEM FOR RARE ISOTOPE BEAM PRODUCTION WITH HIGH-POWER HEAVY-ION BEAMS*	3373
	J.-W. Kim, S. Hong, J.H. Kim, M. Kim, J. Song IBS, Daejeon, Republic of Korea
	To produce rare isotope beams, in-flight fragmentation method utilizing a thin target and heavy-ion primary beam can be used. The existing facilities provide the maximum primary beam power of a few kW, while the next generation facility is planned to use hundreds of kW of 238U beam. We are designing a rare-isotope beam facility, which can provide U beam with the maximal power of 400 kW at the energy of 200 MeV/u. The high-power target studied is made of multi-slice rotating graphite to enhance radiation cooling. The total target thickness is roughly 2 mm with more than 10 slices. The resultant power density inside the target reaches above 50 MV/cm³. Numerical simulation for thermo-mechanical analysis has been performed using PHITS and ANSYS for single and multi-slice targets. Also, empirical test was made using 70-keV electron beam for a single-slice rotation target with the thickness of 0.2 mm. The results of simulation and e-beam tests will be presented. * Work supported by Rare Isotope Science Program (RISP) through the National Research Foundation of Korea (NRF) funded by Ministry of Science, ICT and Future Planning (MSIP) (2011-0032011)

THPME024	Magnet Designs of the In-flight Fragment Separator for the RISP	3555
	D.G. Kim, J.Y. Kim, J.-W. Kim, M. Kim, M. Kim, C.C. Yun, A. Zaghloul IBS, Daejeon, Republic of Korea
	Magnets to be used for the in-flight fragment separator of the rare isotope science project (RISP) have been designed. The dipole magnets have a gap width of 150 mm and a magnetic rigidity of 10 Tm. The superferric quadrupole magnets have a pole tip radius of 170 mm and a maximum field gradient of 14 T/m. In addition, superconducting multiple coils will be wound around the cold bore tube of the quadrupole magnet to make high-order magnetic field corrections. In the high radiation region near the production target, warm iron dipole and quadrupole magnets employing high temperature superconductor (HTS) coils will be used in order to reduce the cold mass and to remove large radiation heat loads effectively at the temperature of 30-50 K. The design of dipole and quadrupole magnets has been optimized considering technical constraints and the manufacturing of the prototype of superferric quadrupole magnets is in progress. Simulation results using OPERA-3D and some results of prototyping will be presented.

Paper

Title

Page

DEVELOPMENT OF A TARGET SYSTEM FOR RARE ISOTOPE BEAM PRODUCTION WITH HIGH-POWER HEAVY-ION BEAMS*

3373

J.-W. Kim, S. Hong, J.H. Kim, M. Kim, J. Song
IBS, Daejeon, Republic of Korea

To produce rare isotope beams, in-flight fragmentation method utilizing a thin target and heavy-ion primary beam can be used. The existing facilities provide the maximum primary beam power of a few kW, while the next generation facility is planned to use hundreds of kW of 238U beam. We are designing a rare-isotope beam facility, which can provide U beam with the maximal power of 400 kW at the energy of 200 MeV/u. The high-power target studied is made of multi-slice rotating graphite to enhance radiation cooling. The total target thickness is roughly 2 mm with more than 10 slices. The resultant power density inside the target reaches above 50 MV/cm³. Numerical simulation for thermo-mechanical analysis has been performed using PHITS and ANSYS for single and multi-slice targets. Also, empirical test was made using 70-keV electron beam for a single-slice rotation target with the thickness of 0.2 mm. The results of simulation and e-beam tests will be presented.
* Work supported by Rare Isotope Science Program (RISP) through the National Research Foundation of Korea (NRF) funded by Ministry of Science, ICT and Future Planning (MSIP) (2011-0032011)

THPME024

Magnet Designs of the In-flight Fragment Separator for the RISP

3555

D.G. Kim, J.Y. Kim, J.-W. Kim, M. Kim, M. Kim, C.C. Yun, A. Zaghloul
IBS, Daejeon, Republic of Korea

Magnets to be used for the in-flight fragment separator of the rare isotope science project (RISP) have been designed. The dipole magnets have a gap width of 150 mm and a magnetic rigidity of 10 Tm. The superferric quadrupole magnets have a pole tip radius of 170 mm and a maximum field gradient of 14 T/m. In addition, superconducting multiple coils will be wound around the cold bore tube of the quadrupole magnet to make high-order magnetic field corrections. In the high radiation region near the production target, warm iron dipole and quadrupole magnets employing high temperature superconductor (HTS) coils will be used in order to reduce the cold mass and to remove large radiation heat loads effectively at the temperature of 30-50 K. The design of dipole and quadrupole magnets has been optimized considering technical constraints and the manufacturing of the prototype of superferric quadrupole magnets is in progress. Simulation results using OPERA-3D and some results of prototyping will be presented.