Speaker
Description
We present the detailed design and hardware implementation required to build a laser wire scanner for H- bunches at the Los Alamos Neutron Science Center (LANSCE) in the low energy beam transport (LEBT) section of the LANSCE beam line. The presented design is modular and supports a variety of input laser beam orientations, as well as differing laser beam diameters and powers. A custom-built laser interaction point, and drift chamber are added to the current beam line to photo-ionize the H- secondary electrons and collect the freed electrons in a custom-built, high-speed Faraday cup detector. Our chamber design is modular and constructed to minimally impact LANSCE production, while also allowing for in-run cycle reconfigurations. This setup will allow for the testing of a variety of laser system diagnostics configurations at the LANSCE facility. Future directions for direct separation and spatially resolved detection of the neutral hydrogen and charged anions will also be presented.
Funding Agency
Los Alamos National Laboratory, Laboratory Directed Research and Development
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