Abstract

Abstract Studies of polarization bremsstrahlung (PB) and ordinary bremsstrahlung (OB) produced by the 89Sr beta emitter in Al, Ti, Sn and Pb targets were undertaken at photon energies of 1–100 keV. The experimental results are compared with the Elwert corrected (non-relativistic) Bethe–Heitler (EBH) theory and the modified Elwert factor (relativistic) Bethe–Heitler ( F mod BH) theory for OB and with the Avdonina and Pratt ( F mod BH + PB) theory for total bremsstrahlung (BS). These results are in agreement with the F mod BH + PB theory up to 13 keV, 16 keV, 22 keV and 28 keV energies for Al, Ti, Sn and Pb targets, respectively; F mod BH theory is more accurate at higher energies.

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