THE EFFECT OF MAGNETIZATION ON X- RAY FLUORESCENCE CROSS SECTIONS

Authors : Paşa YALÇIN, Mehmet TERZİ, Ali GÜROL

Pages : 17-18

View : 23 | Download : 8

Publication Date : 2016-08-01

Article Type : Research Paper

Abstract :In this study, Fe and Co tablet samples, which show ferromagnetic properties at room temperature, were magnetised for 300 seconds in a 1T insert ignore into journalissuearticles values(10 kG); of size magnetic field, which had 12.94 mm distance between its poles. The magnetic field applied on the ferromagnetic samples were measured as F. W. Bell Gauss/Teslameter insert ignore into journalissuearticles values(Model 5080); and 1 tesla insert ignore into journalissuearticles values(10 kG); when the distance between its poles were 12.94 mm. Then, the change emerged in the σ Kα and σ Kβ cross sections of Fe and Co were respectively measured as 20º, 40º, 60º, 80º, 100º, 120º and 140º release angles in order. The samples were alerted with KX-rays of silver alerted from Cd-109 radioisotope source of 40 mCi. During the study, an HPGe detector, which has the beryllium window with 25µm diameter and with insert ignore into journalissuearticles values(FWHM); 210 eV full width at half maximum in 5.9 keV was used. The crystal thickness of this detector was 10 mm and its active field was 200 mm2 , the voltage to be used on the detector was applied till -1500 V at maximum and the shaping time were set as 10µs. The liquid, which is located in a crystal counter and FET were hold in a 30 liters of a liquid nitrogen container insert ignore into journalissuearticles values(dewar); was kept under nitrogen boiling temperature. The results showed that specifically the magnetization of Fe increased its KX-ray fluorescence cross sections and the fluorescence cross sections of KX-ray fluorescence cross sections for Fe without magnetization were anisotropic although it was not encountered with any anisotropy of magnetized Fe X-rays. Consequently, this was an expected situation as the magnetised Fe and the anisotropy of Co in the σ Kα and σ Kβ values were orientations of ions generated after alerted with photon, which was the anisotropy source of X-rays. However, to make the results more useful, it is necessary to make more studies that are experimental and support these results with studies determining the orientations of atoms in magnetized samples.
Keywords : Angular Distribution, Magnetization, Cross Section, XRF, X Rays