The Time-resolved Atomic, Molecular and Optical Science Instrument at the Linac Coherent Light Source

TL;DR

The TMO instrument at LCLS offers advanced, flexible X-ray capabilities for ultrafast atomic, molecular, and optical science, enabling new experiments with high repetition rates and sub-femtosecond pulses.

Contribution

It introduces a novel, versatile instrument combining two accelerators and beam focus spots, expanding experimental possibilities at LCLS.

Findings

Supports new experimental techniques in AMO and nonlinear science

Enables studies of ultrafast electronic and molecular phenomena

Features a sub-micron X-ray focus for high-resolution experiments

Abstract

The newly constructed Time-resolved atomic, Molecular and Optical science instrument (TMO), is configured to take full advantage of both linear accelerators at SLAC National Accelerator Laboratory, the copper accelerator operating at a repetition rate of 120 Hz providing high per pulse energy, as well as the superconducting accelerator operating at a repetition rate of about 1 MHz providing high average intensity. Both accelerators build a soft X-ray free electron laser with the new variable gab undulator section. With this flexible light sources, TMO supports many experimental techniques not previously available at LCLS and will have two X-ray beam focus spots in line. Thereby, TMO supports Atomic, Molecular and Optical (AMO), strong-field and nonlinear science and will host a designated new dynamic reaction microscope with a sub-micron X-ray focus spot. The flexible instrument design is optimized for studying ultrafast electronic and molecular phenomena and can take full advantage of the sub-femtosecond soft X-ray pulse generation program.