Beam Injection for the PF-AR with a Single Pulsed Quadrupole Magnet

We have developed an innovative injection system by using a single pulsed quadrupole magnet (PQ-magnet) without any dipole kicker magnets in electron storage rings. Using a characteristic of a quadrupole magnet, we can easily reduce the amplitude of the oscillation of the injected beam without exciting the coherent dipole oscillations of the stored beam. During the summer shutdown of 2004, we installed the PQ-magnet in the PF-AR (Photon Factory Advanced Ring). The parameters of the PQ-magnet are the length of 0.30m, the field gradient of 3T/m at the peak current of 2000A, and the pulse width of the 2.4μsec that is the double revolution period. In this paper, we will describe the preliminary results of the machine study for the beam injection by the PQ-magnet at the PF-AR.