New Studies on the Chemical Effects of X-rays

Radiology ◽  
1930 ◽  
Vol 15 (2) ◽  
pp. 245-261 ◽  
Author(s):  
George L. Clark ◽  
Lucy W. Pickett ◽  
Eva D. Johnson
Keyword(s):  
X Rays ◽  
1994 ◽  
Vol 84 (1) ◽  
pp. 433-437 ◽  
Author(s):  
J. Iihara ◽  
K. Fukuhara ◽  
M. Yagi ◽  
T. Omori ◽  
K. Yoshihara
Keyword(s):  
X Rays ◽  

Author(s):  
Ahmet Tursucu ◽  
Mehmet Haskul ◽  
Asaf Tolga Ulgen

In the current work, it was investigated to the K X-ray fluorescence efficiency and chemical effect on vacancy transfer probability for some tin compounds. We used Br2Tin, TinI2, SeTin, TinF2, TinSO4, TinCl2, TinO and TinS compounds for experimental study. The target samples were irradiated with 241Am annular radioactive source at the intensity of 5 Ci which emits gamma rays at wavelength of 0.2028 nm. The characteristic x-rays emitted because of the excitation are collected by a high-resolution HPGe semiconductor detector. It has been determined that the experimental calculations of the tin (Sn) element are compatible with the theoretical calculation. In addition, we have calculated the experimental intensity ratios, fluorescence yields and total vacancy transfer probabilitiesfor other Sn compounds. 


Author(s):  
Ahmet Tursucu ◽  
Mehmet Haskul ◽  
Asaf Tolga Ulgen

In the current work, it was investigated to the K X-ray fluorescence efficiency and chemical effect on vacancy transfer probability for some tin compounds. We used Br2Tin, TinI2, SeTin, TinF2, TinSO4, TinCl2, TinO and TinS compounds for experimental study. The target samples were irradiated with 241Am annular radioactive source at the intensity of 5 Ci which emits gamma rays at wavelength of 0.2028 nm. The characteristic x-rays emitted because of the excitation are collected by a high-resolution HPGe semiconductor detector. It has been determined that the experimental calculations of the tin (Sn) element are compatible with the theoretical calculation. In addition, we have calculated the experimental intensity ratios, fluorescence yields and total vacancy transfer probabilitiesfor other Sn compounds. 


Author(s):  
J. lihara ◽  
T. Omori ◽  
K. Yoshihara ◽  
K. Ishii
Keyword(s):  
X Rays ◽  

Nature ◽  
1955 ◽  
Vol 175 (4460) ◽  
pp. 720-721 ◽  
Author(s):  
R. ALLINSON ◽  
B. COLEBY ◽  
J. WEISS

1998 ◽  
Author(s):  
R.A. Holroyd ◽  
J.M. Preses

1992 ◽  
Vol 02 (02) ◽  
pp. 93-106 ◽  
Author(s):  
K. YOSHIHARA ◽  
J. IIHARA

Various aspects of chemical effects on X-ray spectra such as energy shift, emission probability change, satellite formation and peak profile change are reviewed in recent studies. Applicability of the chemical effect to analysis of practical samples is also discussed. Though the emphasis is laid on PIXE, other X-ray production techniques are also taken into consideration because new trends of X-ray production and measurement are growing.


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