PROTOTYPE LASER EMITTANCE SCANNER FOR SPALLATION NEUTRON SOURCE (SNS) ACCELERATOR

Taking advantage of recent successes with the Laser Wire, a new prototype is being built to use the laser wire as both a profile monitor and a slit for an emittance measuring device. This improved system takes advantage of the steering dipole magnet prior to ring injection of SNS such that only the recently stripped H0 protons continue forward to the emittance device. In this way we hope to make an emittance device that is both parasitic to neutron production and is capable of accurate measurements during full-power applications.