نتایج جستجو برای: pixe

تعداد نتایج: 469  

Journal: :Proceedings of the National Academy of Sciences 2008

2013
Werner Brandt Gregory Lapicki

Inner-shell ionization cross sections used in Particle-Induced X-ray Elemental (PIXE) analyses are routinely calculated in the ECPSSR [W. Brandt, G. Lapicki, Phys. Rev. A 23 (1981) 1717–1729] theory and/ or semiempirical formulas scaled to that theory. Thirty years after the passing of Werner Brandt, with recognition of his seminal contributions to other research on positron physics and stoppin...

Investigation of scientific archaeological excavation reports in Iran indicated that these excavations yielded a large number of fragments of glass objects from many archaeological sites, but a very limited number of preliminary studies on elemental analysis of a few Iranian glass objects have been published. Also, a literature survey on pre-Islamic glass objects (especially from Parthian and S...

Journal: :International Journal for Research in Applied Science and Engineering Technology 2018

2015
D. Bowes H. Yin D. Chen

X-ray emission has been achieved using an electron beam generated by a pseudospark low-pressure discharge and utilised as a diagnostic for beam detection. A 300 A, 34 kV PS-sourced electron beam pulse of 3 mm diameter impacting on a 0.1 mm-thick molybdenum target generated X-rays which were detected via the use of a small, portable X-ray detector. Clear X-ray images of a micro-sized object were...

2015
Md. Zakir Hossain Azharul Islam Md. Joynal Abedin Md. Atiqur Rahman

In 1964, a positive ion horizontal type Van de Graaff accelerator (KN3000) was installed at Atomic Energy Center, Dhaka (AECD). This accelerator was manufactured by the High Voltage Engineering Corporation, Burlington, Mass., USA. Van de Graaff accelerator consists of a number of operating parts related each other. This accelerator can produce and accelerate 3 MeV proton beam using Hydrogen, He...

2006
A. KITAMURA R. NISHIO H. IWAI R. SATOH A. TANIIKE Y. FURUYAMA

Preliminary results of experiments on D2 gas permeation using a system [vacuum/CaO/Sr/PdD x/D2] have shown some evidence of nuclear transmutation from Sr to Mo. The system is a little simpler than that used by Iwamura et al., and has a reversed gas flow direction. The diagnostic method used to identify the elements was conventional XPS, giving the areal densities of 4.21014 cm-2 (Sr) and 3.31...

Journal: :Acta stomatologica Croatica 1989
J Zivko-Babić T Tadić M Jaksić T Ivanis V Valković

Proton induced X-ray emission spectroscopy (PIXE) has been used to determine the intensity of metals from crowns in human teeth. In order to measure elements distribution across the tooth section, proton beam (3 MeV) has been collimeted to provide a spatial resolution of 300 microns. The samples were selected according to the time of insertion of crowns and the kind of alloys they were made of....

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