An approach for the measurement of the bulk temperature of single crystal diamond using an X-ray free electron laser.

ABSTRACT: We present a method to determine the bulk temperature of a single crystal diamond sample at an X-Ray free electron laser using inelastic X-ray scattering. The experiment was performed at the high energy density instrument at the European XFEL GmbH, Germany. The technique, based on inelastic X-ray scattering and the principle of detailed balance, was demonstrated to give accurate temperature measurements, within [Formula: see text] for both room temperature diamond and heated diamond to 500 K. Here, the temperature was increased in a controlled way using a resistive heater to test theoretical predictions of the scaling of the signal with temperature. The method was tested by validating the energy of the phonon modes with previous measurements made at room temperature using inelastic X-ray s

SUBMITTER: Descamps A 

PROVIDER: S-EPMC7471281 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature