<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Me</mml:mi></mml:math>-shell ionization of Au, Bi, and U by protons and helium ions in the MeV region

Ishii, K.; Morita, S.; Tawara, H.; Kaji, Hironori; Shiokawa, Takanobu

doi:10.1103/physreva.11.119

Cited by 49 publications

(8 citation statements)

References 14 publications

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“…Ishii et al [6] calculated the M 4,5 -shell ionization cross sections for protons on Au by the use of the BEA. The momentum distribution of target electrons was obtained using the nonrelativistic hydrogenic model and theoretical values are compared with their experimental results.…”

Section: Introductionmentioning

confidence: 99%

M-shell ionization cross sections by proton impact on gold in the binary-encounter approximation

Mukoyama

2015

Nuclear Instruments and Methods in Physics Research Section B:

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Section: Introductionmentioning

confidence: 99%

M-shell ionization cross sections by proton impact on gold in the binary-encounter approximation

Mukoyama

2015

Nuclear Instruments and Methods in Physics Research Section B:

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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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“…References compiled by Lapicki [6] and Paul et al [7,8] report about 180 K-shell cross sections, while tables of Hardt and Watson [9], Sokhi and Crumpton [10] and Orlic et al [11] list some 130 L-shell cross sections for these targets. M-shell articles [5,[12][13][14][15][16][17][18][19][20][21] report approximately 210 x-ray production cross sections for thorium and uranium.…”

Section: Introductionmentioning

confidence: 99%

Thorium and uranium M-shell x-ray production by 0.4–4.0 MeV protons and 0.4–6.0 MeV helium ions

Phinney

Duggan

Lapicki

et al. 2009

J. Phys. B: At. Mol. Opt. Phys.

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M-shell x-ray production cross sections for thorium and uranium have been determined for protons of energies 0.4–4.0 MeV and helium ions of energies 0.4–6.0 MeV. The M-shell line and total M-shell x-ray production cross sections are compared to the predictions of the first Born approximation and ECUSAR ionization theory using recently recommended atomic parameters. Both theories are in good agreement with the data for protons and He ions above 1 MeV. The data of others for energies above 1 MeV protons on uranium, however, fall significantly under the present measurements. Below 1 MeV, with decreasing energy of these projectiles, the first Born approximation increasingly overestimates our measurements while the ECUSAR theory underestimates them to a similar degree. The same trends are seen versus the data of others.

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Me-shell ionization of Au, Bi, and U by protons and helium ions in the MeV region

Cited by 49 publications

References 14 publications

M-shell ionization cross sections by proton impact on gold in the binary-encounter approximation

M-shell ionization cross sections by proton impact on gold in the binary-encounter approximation

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

Thorium and uranium M-shell x-ray production by 0.4–4.0 MeV protons and 0.4–6.0 MeV helium ions

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