HRRL OTR Test Mar 3rd 2011

Objectives

Determined if the steering magnets of the gun are connected to power supply

1. Physically check looking at wires. 2. Change currents on the steering magnet, and observe position of the beam spot. If changes then, connected.

Determined if the OTR target is centered on the beam line

Turn of the all the power supplies for the magnets (include gun steering magnets), then observe beam spot at the OTR target. If the beam is centered on the OTR target, then OTR target is centered on the beam line.

Polarization test

Insert a polarizer film. Take several picture for different orientations without changing beam properties.

Angel is measured with respect to:

Polarizer Angel	Iamge
200 px	200 px

Determined if the quads are centered on the beam line

Turn off all the power supplies for the quads. Then turn one of the quad, see if the center of the beam is shifting. If it does, then that quad is not centered. Do the same for all other quads.