M Frank, LJ Hiller, JB Le Grand, CA Mears… - Review of scientific …, 1998 - pubs.aip.org
We present experimental results obtained with a cryogenically cooled, high-resolution x-ray
spectrometer based on a 141 μm× 141 μm Nb-Al-Al 2 O 3-Al-Nb superconducting tunnel …