Speaker
Description
The Weapons Neutron Research (WNR) facility at the Los Alamos Neutron Science Center (LANSCE) has set a long-term objective to enhance Target 4. This target facilitates six distinct flight paths (FP), each with specific beam delivery requirements. Historically, the as-designed MCNP geometry model has been employed. However, to guarantee precise beam delivery to all FPs, there is an emerging need to utilize a detailed as-built MCNP model. A novel approach has been introduced that employs the Laser Tracker System. This system accurately determines the position of the target, shutters, and flight paths. These data subsequently inform MCNP geometry and provide as-built MCNP geometry model. The beam spot quality is further assessed using a time-gated neutron imaging system.