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# January2022cover.png

## Appears In

                        - Quantum Calorimeters

**Left:**  Cover of the January 2022 issue of The Journal of Physical Chemistry Letters showing a stylized representation of NIST's superconducting x-ray sensors collecting x-rays from a sample. The cover accompanied the publication “Metastable Brominated Nanodiamond Surface Enables Room Temperature and Catalysis-Free Amine Chemistry”. **Right:** NIST x-ray spectrometer installed at beamline U71 of the National Synchrotron Light Source, Brookhaven National Laboratory. The spectrometer contains 240 x-ray sensors and demonstrates NIST's ability to develop and deliver complete measurement systems.

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