<span style="font-size:10.0pt;font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Mangal;mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language: HI" lang="EN-GB">Experimental measurement of coherent to incoherent cross-section ratio of elements in the range 6 ≤ Z ≤ 82 for 59.54 keV gamma photons</span>

Abstract

T<span style="mso-bidi-font-weight:bold">he coherent (Rayleigh) to incoherent (Compton) scattering cross-section ratio of elements in the range 6 ≤ <i style="mso-bidi-font-style: normal">Z</i> ≤ 82 for 59.54 keV gamma photons,have been measured. An HPGe gamma detector, placed at 90<span style="font-family:Symbol; mso-ascii-font-family:" times="" new="" roman";mso-hansi-font-family:"times="" roman";="" mso-char-type:symbol;mso-symbol-font-family:symbol"="" lang="EN-GB">° to the incident beam, detects gamma <span style="mso-bidi-font-weight:bold">photons scattered from the target under investigation. The intensity ratio of Rayleigh to Compton scattered peaks observed in the recorded spectra, corrected for photo-peak efficiency of gamma detector and absorption of photons in the target and air, along with the other required parameters provides differential cross-sections ratio for Rayleigh to Compton scattering. The measured values of cross-section ratio are found to agree with theory for low <i style="mso-bidi-font-style: normal">Z</i> elements, but deviate from theory for high Z elements.

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