Triple differential cross section of potassium for doubly symmetric ionization

Purohit, G.; Patidar, Vinod; Sud, K. K.

doi:10.1016/j.physleta.2010.04.037

Cited by 12 publications

(12 citation statements)

References 34 publications

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“…[7−10] The PCI effect was included through the angle-dependent effective charge model [7] or a Gamow factor. [9,10] The polarization potential was introduced as a function of the electron density parameter. [8,10] Either the spin averaged static exchange potential (SASEP) [8,10] or the modified semiclassical exchange potential (MSCEP) [9] was employed to consider the electron exchange effect of the target.…”

Section: Introductionmentioning

confidence: 99%

“…[9,10] The polarization potential was introduced as a function of the electron density parameter. [8,10] Either the spin averaged static exchange potential (SASEP) [8,10] or the modified semiclassical exchange potential (MSCEP) [9] was employed to consider the electron exchange effect of the target. These modified first-order DWBA calculations showed reasonable improvement for the agreement with the experimental measurements compared with the standard DWBA calculation.…”

Section: Introductionmentioning

confidence: 99%

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Study of (e, 2e) process on potassium at 6 eV–60 eV above threshold in a second-order Born approximation

Wang¹,

Zhou²,

Jiao

2012

Chinese Phys. B

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The standard distorted wave Born approximation (DWBA) method has been extended to second-order Born amplitude in order to describe the multiple interactions between the projectile and the atomic target. Second-order DWBA calculations have been preformed to investigate the triple differential cross sections (TDCS) of coplanar doubly symmetric (e, 2e) collisions for the alkali target potassium at excess energies of 6 eV–60 eV. Compared with the previous first-order DWBA calculations, the present theoretical model improves the degree of agreement with experiments, especially for the backward scattering angle region of TDCS. This indicates that the present second-order Born term is capable of giving a reasonable correction to the DWBA model in studying coplanar symmetric (e, 2e) problems in low and intermediate energy ranges.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of (e, 2e) process on potassium at 6 eV–60 eV above threshold in a second-order Born approximation

Wang¹,

Zhou²,

Jiao

2012

Chinese Phys. B

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“…The TDCS obtained by this kind of study provides complete information about the collision dynamics involved. Following this, significant progress has been made in the study of the electron impact single ionization of various atomic, ionic and molecular targets and reasonable agreement has been obtained between the experimental and theoretical results [2][3][4][5][6][7][8][9][10][11][12][13]. As already mentioned, the electron-induced ionization of atomic as well as ionic targets is of prime importance for the diagnostics and modeling of fusion plasma.…”

Section: Introductionmentioning

confidence: 97%

Calculation of Electron Impact Single Ionization TDCS of Tungsten Atoms at 200, 500 and 1000 eV

Purohit

2021

Atoms

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We report triple differential cross-sections (TDCSs) for the electron impact single ionization of tungsten atoms for the ionization taking place from the outer sub shells of tungsten atoms, viz. W (6s), W (5d), W (5p) and W (4f). The study of the electron-induced processes such as ionization, excitation, autoionization from tungsten and its charged states is strongly required to diagnose and model the fusion plasma in magnetic devices such as Tokamaks. Particularly, the cross-section data are important to understand the electron spectroscopy involved in the fusion plasma. In the present study, we report TDCS results for the ionization of W atoms at 200, 500 and 1000 eV projectile energy at different values of scattered electron angles. It was observed that the trends of TDCSs for W (5d) are significantly different from the trends of TDCSs for W (6s), W (5p) and W (4f). It was further observed that the TDCS for W atoms has sensitive dependence on value of momentum transfer and projectile energy.

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“…Study of (e, 2e) processes on these targets is of prime importance since these are having one and two electrons respectively in the valence shell and after ionization they are left as inert core (alkali target) and one electron in the valence shell above inert core (alkali earth target). Following the experimental results of Murray [28] several theoretical results have been reported for the (e, 2e) processes in coplanar geometry on the alkali and alkali earth targets [22,[29][30][31][32][33][34] and particularly, the study of (e, 2e) processes on Ca atom [22,29,32,33]. Apart from the above mentioned studies Bolognesi et al [35,36] have reported a series of (e, 2e) measurements in unequal energy sharing conditions for the ionization of Mg (3s) target.…”

Section: Introductionmentioning

confidence: 99%

Calculation of (e, 2e) triple differential cross sections of Mg in coplanar geometry

Purohit

Patidar

Sud

2011

J. Phys.: Conf. Ser.

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Triple differential cross section of potassium for doubly symmetric ionization

Cited by 12 publications

References 34 publications

Study of (e, 2e) process on potassium at 6 eV–60 eV above threshold in a second-order Born approximation

Study of (e, 2e) process on potassium at 6 eV–60 eV above threshold in a second-order Born approximation

Calculation of Electron Impact Single Ionization TDCS of Tungsten Atoms at 200, 500 and 1000 eV

Calculation of (e, 2e) triple differential cross sections of Mg in coplanar geometry

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