Electron impact ionization cross sections of beryllium and beryllium hydrides

Thana Maihom; Ivan Sukuba; Ratko Janev; Kurt Becker; Tilmann Märk; Alexander Kaiser; Jumras Limtrakul; Jan Urban; Pavel MacH; Michael Probst

doi:10.1140/epjd/e2012-30691-1

Electron impact ionization cross sections of beryllium and beryllium hydrides

Thana Maihom, Ivan Sukuba, Ratko Janev, Kurt Becker, Tilmann Märk, Alexander Kaiser, Jumras Limtrakul, Jan Urban, Pavel MacH, Michael Probst

Research output: Contribution to journal › Article › peer-review

Abstract

We report calculated electron impact ionization cross sections (EICSs) for beryllium (Be) and some of its hydrides from the ionization threshold to 1 keV using the Deutsch-Märk (DM) and the Binary-Encounter-Bethe (BEB) formalisms. The positions of the maxima of the DM and BEB cross sections are very close in each case while the DM cross section values at the maxima are consistently higher. Our calculations for Be are in qualitative agreement with results from earlier calculations (convergent close-coupling, R matrix, distorted-wave and plane-wave Born approximation) in the low energy region. For the various beryllium hydrides, we know of no other available data. The maximum cross section values for the various compounds range from 4.0 × 10 ^-16 to 9.4 × 10^-16 cm² at energies of 44 to 56 eV for the DM cross sections and 3.0 × 10^-16 to 5.4 × 10^-16 cm² at energies of 40.5 to 60 eV for the BEB cross sections.

Original language	English (US)
Article number	2
Journal	European Physical Journal D
Volume	67
Issue number	1
DOIs	https://doi.org/10.1140/epjd/e2012-30691-1
State	Published - Jan 2013

Keywords

Atomic and Molecular Collisions

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1140/epjd/e2012-30691-1

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title = "Electron impact ionization cross sections of beryllium and beryllium hydrides",

abstract = "We report calculated electron impact ionization cross sections (EICSs) for beryllium (Be) and some of its hydrides from the ionization threshold to 1 keV using the Deutsch-M{\"a}rk (DM) and the Binary-Encounter-Bethe (BEB) formalisms. The positions of the maxima of the DM and BEB cross sections are very close in each case while the DM cross section values at the maxima are consistently higher. Our calculations for Be are in qualitative agreement with results from earlier calculations (convergent close-coupling, R matrix, distorted-wave and plane-wave Born approximation) in the low energy region. For the various beryllium hydrides, we know of no other available data. The maximum cross section values for the various compounds range from 4.0 × 10 -16 to 9.4 × 10-16 cm2 at energies of 44 to 56 eV for the DM cross sections and 3.0 × 10-16 to 5.4 × 10-16 cm2 at energies of 40.5 to 60 eV for the BEB cross sections.",

keywords = "Atomic and Molecular Collisions",

author = "Thana Maihom and Ivan Sukuba and Ratko Janev and Kurt Becker and Tilmann M{\"a}rk and Alexander Kaiser and Jumras Limtrakul and Jan Urban and Pavel MacH and Michael Probst",

year = "2013",

month = jan,

doi = "10.1140/epjd/e2012-30691-1",

language = "English (US)",

volume = "67",

journal = "European Physical Journal D",

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TY - JOUR

T1 - Electron impact ionization cross sections of beryllium and beryllium hydrides

AU - Maihom, Thana

AU - Sukuba, Ivan

AU - Janev, Ratko

AU - Becker, Kurt

AU - Märk, Tilmann

AU - Kaiser, Alexander

AU - Limtrakul, Jumras

AU - Urban, Jan

AU - MacH, Pavel

AU - Probst, Michael

PY - 2013/1

Y1 - 2013/1

N2 - We report calculated electron impact ionization cross sections (EICSs) for beryllium (Be) and some of its hydrides from the ionization threshold to 1 keV using the Deutsch-Märk (DM) and the Binary-Encounter-Bethe (BEB) formalisms. The positions of the maxima of the DM and BEB cross sections are very close in each case while the DM cross section values at the maxima are consistently higher. Our calculations for Be are in qualitative agreement with results from earlier calculations (convergent close-coupling, R matrix, distorted-wave and plane-wave Born approximation) in the low energy region. For the various beryllium hydrides, we know of no other available data. The maximum cross section values for the various compounds range from 4.0 × 10 -16 to 9.4 × 10-16 cm2 at energies of 44 to 56 eV for the DM cross sections and 3.0 × 10-16 to 5.4 × 10-16 cm2 at energies of 40.5 to 60 eV for the BEB cross sections.

AB - We report calculated electron impact ionization cross sections (EICSs) for beryllium (Be) and some of its hydrides from the ionization threshold to 1 keV using the Deutsch-Märk (DM) and the Binary-Encounter-Bethe (BEB) formalisms. The positions of the maxima of the DM and BEB cross sections are very close in each case while the DM cross section values at the maxima are consistently higher. Our calculations for Be are in qualitative agreement with results from earlier calculations (convergent close-coupling, R matrix, distorted-wave and plane-wave Born approximation) in the low energy region. For the various beryllium hydrides, we know of no other available data. The maximum cross section values for the various compounds range from 4.0 × 10 -16 to 9.4 × 10-16 cm2 at energies of 44 to 56 eV for the DM cross sections and 3.0 × 10-16 to 5.4 × 10-16 cm2 at energies of 40.5 to 60 eV for the BEB cross sections.

KW - Atomic and Molecular Collisions

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DO - 10.1140/epjd/e2012-30691-1

M3 - Article

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SN - 1434-6060

VL - 67

JO - European Physical Journal D

JF - European Physical Journal D

IS - 1

M1 - 2

ER -

Electron impact ionization cross sections of beryllium and beryllium hydrides

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Keywords

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