A COMPTON PROFILE STUDY OF TANTALUM

We report the results of Compton profile study on polycrystalline tant alum. Measurements have been made using 59.54 keV gamma-rays. The resu lts are compared with the APW band structure calculations of Papanicol aou et al and other available data. In contrast to the work of Chang e t al the overall agreement is better with the APW band structure which worsens on incorporating the electron correlation correction. Estimat es of the errors due to the contribution from bremsstrahlung, non-vali dity of impulse-approximation and anomalous dispersion are also briefl y discussed.