Study of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>L</mml:mi></mml:math>- and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>M</mml:mi></mml:math>-Shell X Rays of Pb Produced by 0.5 - 14.0-MeV-Proton Beams

Busch, C.E.; Baskin, A. B.; Nettles, P.H.; Shafroth, S. M.; Waltner, A.W.

doi:10.1103/physreva.7.1601

Cited by 69 publications

(7 citation statements)

References 13 publications

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“…experimental measured ratio at 3.0 MeV, while at 1.5 MeV it is about 10%. Our result for Pb L α /L β is about 8 % higher than those measured results [17] . For L α /L γ our results are 10% and 12 % higher at 1.00 and 3.00 MeV, respectively.…”

Section: Discussioncontrasting

confidence: 82%

“…For L α /L γ our results are 10% and 12 % higher at 1.00 and 3.00 MeV, respectively. For the cases of L α /L β and L α /L γ , the ECPSSR predictions lower with the measured data over the proton energy range 1.5-3.0 MeV but it is higher when it compared with [7,17] for Pb and Bi at 3.0 MeV. Our study indicates that the ratios L α /L ι are independent from incident proton energy theoretically as well as experimentally for all three targets.…”

Section: Discussionmentioning

confidence: 44%

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K and L- shell X-ray Transition-Probability Ratios by Proton Bombardment

Prajapati

Kumar

2018

IJSRPAS

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The present work aimed to study the energy dependence of K α /K β X-ray transition-probability ratios for the elements Fe, Cu, Se, Ag and L α /L β , L α /L γ and L α /L ι X-ray transition-probability ratios for the elements Ag, Pb and Bi. It has been measured by proton bombardment in the energy range of 1.5 to 3.0 MeV. Our results provide constant transitionprobability ratios for K shell X-ray with varying proton energies, while for L X-ray, transition probability ratios show variation with incident proton energy. X-ray transition probability has been compared with the theoretical ratios, calculated by relativistic Hartee-Slater theory and using sub-shell direct ionization cross-sections. .

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Section: Discussioncontrasting

confidence: 82%

Section: Discussionmentioning

confidence: 44%

K and L- shell X-ray Transition-Probability Ratios by Proton Bombardment

Prajapati

Kumar

2018

IJSRPAS

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“…Before the SCA formalism is discussed binding energies [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] and fluorescence yields [20] of the Nsubshells are collected in Table 1. From the binding energies it is excluded that a ionization of the N(VI, VII)-subshell is responsible for a roughly 210eV radiation.…”

Section: Theorymentioning

confidence: 99%

N-shell ionization of tungsten by proton impact

Tittel¹,

Bell²

1978

Z Physik A

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“…So, it is necessary to resort to the empirical and the semi-empirical methods, which are based on the available experimental data as well as the ECPSSR calculations. Over the years, more accurate data became available for the M-shell ionization by light ions (Amirabadi, Afarideh, Haji-Saeid, Shokouhi, & Peyrovan, 1997;Bie nkowski et al, 1990;Braich et al, 1996;Braich, Verma, & Verma, 1997;Busch, Baskin, Nettles, Shafroth, & Waltner, 1973;Cipolla, 1995;De Castro Faria, Freire, De Pinho, & Da Silveira, 1983;Gressett et al, 1989;Ishii, Morita, Tawara, Kaji, & Shiokawa, 1975;Jask oła et al, 2000;Jesus & Ribeiro, 1989;Mehta, Duggan, Price, McDaniel, & Lapicki, 1982, Mehta et al, 1983Pajek et al, 1990aPajek et al, , 1990bPajek et al, , 1990cPajek et al, , 1999Pajek et al, , 2006Sarkar, Mommsen, & Sarter, 1981;Shokouhi et al, 1996;Thornton, McKnight, & Karlowicz, 1974). Nevertheless, the theoretical predictions deviate significantly, especially at low energies, from the experimental data exceeding sometimes a level of quoted experimental uncertainties.…”

Section: Introductionmentioning

confidence: 88%

Hafnium to thorium M-shell X-ray production cross sections by proton impact

Deghfel

Kahoul

Nekkab

2014

Journal of Radiation Research and Applied Sciences

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Keywords:M-shell X-ray production cross sections ECPSSR theory Semi-empirical and empirical cross sections a b s t r a c t Theoretical M-shell X-ray production cross sections have been calculated within the ECPSSR model. The semi-empirical cross sections are then deduced by fitting the available experimental data normalized to their corresponding theoretical values for elements with 72 Z 90 by proton in the energy range 0.1e4.0 MeV. Also, an analytical formula has been used to calculate the empirical X-ray production cross sections by direct fitting of the same experimental data, which are found to be universal, both for individual and collective fits.On the other hand, based on the individual fitting which gives the reliable cross sections, we attempt to deduce another new empirical cross sections by assuming that the ratio empirical to ECPSSR of the cross sections is roughly the same for all elements. In addition, our results are presented for selected heavy elements, namely 74 W, 79 Au and 83 Bi, being the most extensively studied. Finally, a comparison is made between the different procedures followed here and the experimental data.

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Study of theL- andM-Shell X Rays of Pb Produced by 0.5 - 14.0-MeV-Proton Beams

Cited by 69 publications

References 13 publications

K and L- shell X-ray Transition-Probability Ratios by Proton Bombardment

K and L- shell X-ray Transition-Probability Ratios by Proton Bombardment

N-shell ionization of tungsten by proton impact

Hafnium to thorium M-shell X-ray production cross sections by proton impact

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