Status of the CAMD Light Source

Abstract

In parallel with the increasing diversity of its research program, the CAMD Light Source has improved its beam brightness and quality. Using a well calibrated model of the lattice, the ring optic has been refined to generate a lower beam emittance of 150 nm.rad and this has been confirmed by measuring the beta values with the modulated quadrupole shunt system. The beam sizes have also been measured with an X-ray pinhole camera and compared to the calculated emittance. The beam orbit is corrected to a standard position referenced to the quadrupole centers to a precision better than 0.5 mm, using a suite of well localized bumps which can also flexibly steer the user photon beams to their requirements. Beam reliability has been improved by bringing into use a VME control system for the energy ramp.

A proposed multipole wiggler for CAMD

“…It would be beneficial to increase the source brightness but the storage ring is already operating with a reduced horizontal emittance of about 150 nm.rad and this cannot be significantly improved [4]. It has therefore been concluded that increasing the source flux is the only option and a MPW would be capable of giving almost an order of magnitude increase.…”