Fiducilization of Quadrupole Magnet for PEFP

Proton Engineering Frontier Project(PEFP) is developing a 100MeV high-duty-factor proton linac. Which are composed of a 50keV ion source, a 3MeV radio frequency quadrupole, a 100MeV drift tube linac, five 20MeV beamlines and five 100MeV beamlines. It will supply users with proton beams, 20MeV and 100MeV with peak current of 20mA. The beam duty factor will be 24% and 8% respectively. To construct beam transport lines, all the beam line magnets were prepared : 2 ac magnets, 107 quadrupole magnets, 11 bending magnets. They were fabricated at IHEP, China. Figure 1 shows the mangets which were stored and will be installed at the site in the Gyeongju City. We will build the network points in the tunnel, the klystron gallery, experimental halls and target rooms to align the components. The alignment network will be linked by 5 see-through hoes between floors. All of the alignment work will be done by using two laser trackers. In tunnel, the alignment tolerance is within ±50μm. And the magnets will be aligned within ±100μm in beam transport lines. For the quadrupole magnets, all of them were already fiducialized and magnetic field measurement was tested when they were manufactured. However, the fiducialization test has been accomplished to confirm the process and data