TUOBB4
UCLA, Los Angeles, California, USA
RadiaBeam, Santa Monica, USA
The imaging of extremely small, sub-5 micron, transverse beam spot sizes has been a priority in accelerator physics. Here we propose a scheme to generate and image a beam spot size about 1 micron at PEGASUS laboratory at UCLA. We are preparing a 0.8 mm, 1 pC, 10 MeV electron beam to be sent through a permanent magnet quadrupole (PMQ) triplet of strength 130 T/m, focusing the beam to a waist 1.5 microns and a total focal length of 4.5 mm. We use a YAG screen at the beam waist and a mirror to direct optical (520 nm green) light into a Schwarzschild microscope to collimate the light. We will then image the beam using a CCD camera outside of the beam line.
