We present X-ray absorption spectroscopy and resonant inelastic X-ray scattering (RIXS) measurements on the iron L-edge of 0.5 mM aqueous ferricyanide. These measurements demonstrate the ability of high-throughput transition-edge-sensor (TES) spectrometers to access the rich soft X-ray (100-2000eV) spectroscopy regime for dilute and radiation-sensitive samples. Our low-concentration data are in agreement with high-concentration measurements recorded by conventional grating-based spectrometers. These results show that soft X-ray RIXS spectroscopy acquired by high-throughput TES spectrometers can be used to study the local electronic structure of dilute metal-centered complexes relevant to biology, chemistry and catalysis. In particular, TES spectrometers have a unique ability to characterize frozen solutions of radiation- and temperature-sensitive samples.
@article{arxiv.1706.09878,
title = {L-Edge Spectroscopy of Dilute, Radiation-Sensitive Systems Using a Transition-Edge-Sensor Array},
author = {Charles J. Titus and Michael L. Baker and Sang Jun Lee and Hsiao-mei Cho and William B. Doriese and Joseph W. Fowler and Kelly Gaffney and Johnathon D. Gard and Gene C. Hilton and Chris Kenney and Jason Knight and Dale Li and Ron Marks and Michael P. Minitti and Kelsey M. Morgan and Galen C. O'Neil and Carl D. Reintsema and Daniel R. Schmidt and Dimosthenis Sokaras and Daniel S. Swetz and Joel N. Ullom and Tsu-Chien Weng and Christopher Williams and Betty A. Young and Kent D. Irwin and Edward I. Solomon and Dennis Nordlund},
journal= {arXiv preprint arXiv:1706.09878},
year = {2018}
}