1. A sample holder for simultaneous Raman and neutron vibrational spectroscopy
- Author
-
Yongqiang Cheng, T. Huegle, Monika Hartl, Erik B. Iverson, Franz X. Gallmeier, and R. C. Gillis
- Subjects
Materials science ,Spectrometer ,010401 analytical chemistry ,Infrared spectroscopy ,02 engineering and technology ,Cryogenics ,Neutron radiation ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,Neutron spectroscopy ,symbols.namesake ,symbols ,Neutron ,Atomic physics ,Nuclear Experiment ,0210 nano-technology ,Raman spectroscopy ,Instrumentation ,Spallation Neutron Source - Abstract
We have built a sample holder (called a center stick or sample stick) for performing simultaneous Raman and neutron vibrational spectroscopy on samples of material at the VISION neutron vibrational spectrometer of the Spallation Neutron Source at Oak Ridge National Laboratory. This equipment holds material samples in the neutron beam within the cryogenic environment of the VISION spectrometer, allowing for samples to be studied at temperatures as low as 5 K. It also provides the capability for gas to be loaded to or evacuated from the sample while it is loaded at VISION. The optical components for directing and filtering light are located within the cryogenic volume, in physical proximity to the sample. We describe the construction of this sample holder and discuss our first measurements of simultaneous Raman and neutron vibrational spectra. The samples that we report on were of 4-nitrophenol at a temperature of 20 K and of cryogenic hydrogen of a number of different orthohydrogen fractions.
- Published
- 2018
- Full Text
- View/download PDF