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...
| Summary: | <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 are described. Error-contributing factors are analyzed,
and their contributions to the final error are estimated. The three
principal components of the observed line profile are discussed.</p>
<p>A new measurement of the annihilation radiation is reported. The
relation of this measurement to the determination of the mass of the
positron is discussed. Measurements of the wavelength of the 411 Kev
gamma-ray line following decay of Au<sup>198</sup> are given. Wavelengths of
sixteen gamma-ray lines following decay of Ta<sup>182</sup> are tabulated. The
formulation of an energy level scheme for its daughter W<sup>182</sup> is discussed.</p> |
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