Measurements of L X-ray production cross sections, L subshell fluorescence yields and K to L shell vacancy transfer probabilities

HAN İ., DEMİR L., AĞBABA m.

RADIATION PHYSICS AND CHEMISTRY, cilt.76, sa.10, ss.1551-1559, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 76 Sayı: 10
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.radphyschem.2007.04.006
  • Dergi Adı: RADIATION PHYSICS AND CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1551-1559
  • Anahtar Kelimeler: production cross sections, fluorescence yields, vacancy transfer probabilities, L-ALPHA, L-BETA, ELEMENTS, PB, TA, AU, BI
  • Atatürk Üniversitesi Adresli: Evet

Özet

L-i X-ray production cross sections have been measured for Sm, Eu, Gd, Dy, Ho, Er, Pt, Au, TI, Ph and Bi at 59.54 keV incident photon energy. The values of Li subshell fluorescence yields (omega(1), omega(2) and omega(3)) have been determined using the presently measured X-ray production cross sections and the theoretical Li subshell photoionization cross sections values, Coster-Kronig transition probabilities and radiative emission rates. Furthermore, K to L shell vacancy transfer probabilities eta(KLi) (i = 1, 2, 3) for Sm, Eu, Gd, Dy, Ho, Er were determined by measuring the L X-ray production cross section and L subshell fluorescence yields. The measurements were performed using an Am-241 radioisotope as the photon source and a Si(Li) detector. The measured X-ray production cross sections, fluorescence yields and vacancy transfer probabilities were compared with the theoretical values. The results in the present paper are found to be in good agreement with the calculated values. (c) 2007 Elsevier Ltd. All rights reserved.