IBIC2026 - 15th International Beam Instrumentation Conference

Electron detection system for the LANSCE laser wire scanner

MOP033

31 Aug 2026, 16:40

2h

Ballroom C (Whistler Conference Centre)

Poster Presentation MC04: Transverse Profile and Emittance Monitors Monday Poster Session 1

Speakers

Heather Andrews (Los Alamos National Laboratory) Martin Kay (Los Alamos National Laboratory)

Description

At present the Los Alamos Neutron Science Center (LANSCE) beam line has transverse beam shape diagnostics consisting only of physical wire scanners and emittance stations. Knowledge of the transverse beam shape is critical to tuning the beam through the accelerator and for beam monitoring during regular operations. However, the existing diagnostics can only be used at low beam power; at full power they produce too much radiation spill. Recently, we installed and collected initial data from a laser wire scanner installed in the low energy beam transport (LEBT) portion of the accelerator. This diagnostic prototype uses a high energy 1064 nm laser to strip electrons of a portion of the H- bunch and detect the liberated electrons in a Faraday cup. This work presents an overview of the prototype and details of electron detector.