Precision Wavelength Measurements of the Annihilation Radiation from Copper 64 and Gamma-Radiation Following Decay of Gold 198 and Tantalum 182
<p>The geometry, kinematics, and operation of the curved crystal gamma-ray spectrometer are briefly described. The effect of a recently discovered systematic non-linearity is discussed in some detail. A new calibration of the instrument and the means taken to correct for the non-linearity...