23 research outputs found
ABC transporter-dependent brain uptake of the 5-HT1B receptor radioligand [11C]AZ10419369: a comparative PET study in mouse, rat, and guinea pig
Single-stage endovascular treatment of subarachnoid hemorrhage related to bilateral vertebral artery dissecting aneurysms
DEVELOPMENT OF TIMING DISTRIBUTION SYSTEM WITH FEMTO-SECOND STABILITY
Abstract A timing distribution system with femto-second stability has been developed for the RF synchronization of accelerator and the laser synchronization of the pumpprobe experiments. The system uses a phase stabilized optical fiber(PSOF) and an active fiber length stabilization. The PSOF has 5ps/km/degC of the temperature coefficient. The active fiber length stabilization uses the phase detection of the round-trip sinusoidal wave and the deviation is compensated with the fiber stretcher. In this paper, we present the test results of the signal transmission using a 900m long PSOF for 2.856GHz and 1.3GHz RF signals. The stabilities of 2.856GHz and 1.3GHz signal transmission were 0.04degree(40fs) and 0.06degree(130fs), respectively