International Collaboration on Advanced Neutron Sources

Physics Design and Commissioning of the Mark-IV TMRS assembly at the Lujan Center

Not scheduled

20m

V7, the 4th floor

Oral presentation Target and Moderator

Speaker

Josef Svoboda (LANL)

Description

During the 2022 maintenance outage, installation was completed for the new generation of the spallation target-moderator-reflector-shield (TMRS), known as Mark-IV, at the Manuel Lujan Jr. Neutron Scattering Center (Lujan Center) within the Los Alamos Neutron Science Center (LANSCE). This paper deals with a physics design comparison between the previous and current targets, commission work, and the accurate determination of the target position using Laser Tracker Survey. At the end of 2022, we conducted a beam spot experiment with an active high-speed gated camera imager, which closely matched the predictions from our MCNP beam spot simulations.