Chemical effect on theKshell absorption parameters of some selected cerium compounds

Abstract

In this study, the photoelectric cross section values of Ce, CeCl 3 .7H 2 O, Ce 2 (SO 4 ) 3 , Ce(OH) 4 and Ce 2 O 3 samples were measured in the energy range from 31.82 keV up to 51.70 keV by adopting in narrow beam geometry. Using these photoelectric cross sections, the K shell photoelectric cross sections at the K-edge, the K shell absorption jump ratios and jump factors, the Davisson-Kirchner ratios and K shell oscillator strength values were estimated experimentally. The measured parameters were compared with the theoretical calculated values. It is observed that the K shell photoelectric cross section at the K-edge and K shell oscillator strength values of an element are affected by the chemical environment of material while the K shell absorption jump ratio, K shell absorption jump factor and Davisson-Kirchner ratio are not affected by the chemical environment of material for the present samples. To the best of our knowledge, the chemical effects on the Davisson-Kirchner ratio and K shell oscillator strength have not been discussed for any element by now.

Investigation of alloying effects on XRF parameters of 3d transition metals in Permendur49, Kovar and Ti50Co50 alloys

“…The some studies of K X-ray production/fluorescence crosssections, vacancy transfer probability and fluorescence yields for different pure elements and chemical effect on the K shell fluorescence yield of different element compounds and alloys have given in literature (Rao, Chen, & Crasemann, 1972;Krause, 1979;Mukoyama, Taniguchi, & Adachi, 1986;Bhuinya & Padhi, 1993;Sch€ onfeld & Janben, 1996, 2000Ertugrul, 2002Ertugrul, , 2005Raj, Dhal, Padhi, & Polasik, 1998, 2001,2002Polasik, 1998;Buyukkasap, 1998;Sharma, Kumar, Singh, Puri, & Singh, 2005;Kalayci et al, 2005;Aylıkci et al, 2009Aylıkci et al, , 2010Han & Demir, 2009, 2010a, 2010b, 2010cDagistanlı, Kalayci, & Mutlu, 2010;Kacal, Han, Akman, & Durak, 2012;Akman, Durak, & Kacal, 2015, Akman, Kacal, & Durak, 2016.…”

Investigation of radiation attenuation parameters of some drugs used in Chemotherapy in Wide Energy Region

“…These parameters are important for many applied sciences such as health physics, engineering, radiation physics, and space research. There are many scienti ic studies carried out for these parameters using the different type matters in the literature [5][6][7][8][9][10][11][12][13][14][15]. The aim of this study is to investigate the radiation attenuation parameters such as mass attenuation coef icient, linear attenuation coef icient, half value layer, mean free path, and effective atomic number of commonly used in chemotherapeutic drugs such as Lomustine, Cisplatin, Carmustine, and Chlorambucil.…”