The decay of ⁶¹Cu and ⁵⁹Cu produced by (d, n) reactions on
natural nickel has been investigated. Gamma-ray energies and relative
intensities were measured with a high resolution Ge(Li) spectrometer.
The gamma-gamma coincidence spectrum of ⁶¹Cu was
studied with a Ge(Li)-NaI(T1) system. From these data decay
schemes of ⁶¹Cu and...
Zero-field quantum beats were observed in
Lyman-Beta emission from hydrogen atoms formed by beam-foil
excitation.
The
energy dependence of the magnetic
substate relative cross sections
for the n=3, L=1 states of H was determined
for beam energies in
the range from 230 to 500 keV per atom.
The theoretical values...
Seven cases of post-cold-frontal squall lines moving
through the Willamette Valley of Northwest Oregon were
investigated by the various techniques of meso-analysis.
Time cross sections were converted to space cross
sections by using the movement of the radar echo of the
squall lines. The observations in time were converted to...
Nuclear techniques such as perturbed angular correlation (PAC) sample the hyperfine interactions of a large number of probe atoms in specific crystallographic sites. Real crystals contain static defects producing a distribution of electric field gradients (EFGs) that add to the ideal EFG of the crystal at any given probe site....
Perturbed angular correlation (PAC) spectroscopy of dilute zirconia alloys
and YBa₂Cu₃0₇₋x, ceramic superconductors at elevated temperature have been
measured using ¹¹¹Cd as the probe.
The oxygen vacancy concentration in the zirconia samples was controlled by
doping with yttrium or indium, which introduce vacancies, or with niobium, which
removes vacancies. A...