Speaker
Description
We present the results from a recently installed laser wire scanner for the H- beam at the Los Alamos Neutron Science Center (LANSCE) in the low energy beam transport (LEBT) section. The presented design is modular, supports orthogonal transverse input laser beam orientations, and acts as a test stand for implementing photodetachment measurements. A custom-built laser interaction point and drift chamber were added to the current beam line to photoionize the H- secondary electrons and collect the freed electrons in a custom-built, high-speed, Faraday cup detector. We have used this new apparatus to test H- neutralization efficiency as a function of laser intensity, in a laser-wire scanning configuration to characterize the transverse (x,y) H- beam profile exiting the LANSCE Cockcroft-Walton injector.
| Email address | crohde@lanl.gov |
|---|---|
| Funding Agency | LANL LDRD |
| Visitor's Visa | no |
| Classification | Beam diagnostics |