Angular Distribution of Fluorescent L X-Rays and Compton-Scattering Photons

HAN İ., DEMİR L.

SPECTROSCOPY LETTERS, cilt.44, sa.2, ss.95-102, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 44 Sayı: 2
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1080/00387011003727864
  • Dergi Adı: SPECTROSCOPY LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.95-102
  • Atatürk Üniversitesi Adresli: Evet

Özet

The angular distribution of fluorescent L X-rays and Compton-scattering photons was investigated by measuring differential cross sections for high-atomic-number elements. The measurements were taken simultaneously for L X-ray and Compton-scattering photons using Am-241 radioisotope as photon sources and a Si(Li) detector in various emission angles. The measurements confirm well-known angular dependency of the Compton-scattering differential cross section. L X-ray angular distribution measurements were carried out for the Ll, L, L, and L lines. It was observed from measured differential cross sections that Ll and L X-ray differential cross sections for the L3 substate depended on the emission angle, meaning that Ll and L X-rays had an anisotropic spatial distribution. On the other hand, the L and L X-rays do not show any significant anisotropy.