# Calculations of Mean Escape Depths of Photoelectrons in Elemental Solids Excited by Linearly Polarized X-rays for High-Energy Photoelectron Spectroscopy

https://mdr.nims.go.jp/datasets/4b429272-ae29-46e3-a27a-92f794b1db5f

## Files

- [13_MED_SA2.pdf](https://mdr.nims.go.jp/filesets/257c3a13-038b-45f5-8b00-795f57777ab3/download) ([Detail](https://mdr.nims.go.jp/filesets/257c3a13-038b-45f5-8b00-795f57777ab3.md))

## Id

4b429272-ae29-46e3-a27a-92f794b1db5f

## Local identifier

identifier: mdr-schema-yaml/3b5919512

## Visibility

open_to_public

## State

published

## Created at

2021-08-05T16:23:58.849669Z

## Updated at

2024-01-05T13:12:03.095763Z

## Published at

2021-08-12T16:20:00.010370Z

## Doi

https://doi.org/10.48505/nims.1439

## First published url

https://doi.org/10.1016/j.elspec.2013.08.011

## Date published

2013-09-12

## Recorded date published

2013-10

## Resource type

journal_article

## Manuscript type

na

## Collection



## Title

- title: Calculations of Mean Escape Depths of Photoelectrons in Elemental Solids
    Excited by Linearly Polarized X-rays for High-Energy Photoelectron Spectroscopy
  title_type: original
  lang: en

## Description

- description: "We have calculated mean escape depths (MEDs, D) of photoelectrons
    from Si, Cu, and Au excited by linearly polarized X-rays over the 50 to 10,000
    eV energy range for high -energy photoelectron spectroscopy. These calculations
    were done with Monte Carlo methods using the values of electron inelastic mean
    free paths λ that were calculated by the relativistic full Penn algorithm and
    the Dirac-Hartree-Fock atomic potential for elastic scattering of electrons. In
    order to know the dependence of MED on the asymmetry parameter β and the emission
    angle θ, we calculated MEDs for β= -1 to β= 2 (by 0.5 steps) andθ=0° to θ=80°
    (with respect to the surface normal). The resulting MED values increase as the
    β values decrease over the 50 to 10,000 eV energy range. We also found that the
    values of D/λcosθ are approximately constant to within 10% for a given value of
    θ and for energies over 1000 eV (except for the condition of β=-1) over a range
    of emission angles (typically 0° - 40° or 60°). We also found that the energy
    dependence of the ratios D/λcosθ at emission angleθ=0° can be expressed by the
    Jablonski-Powell predictive equation over the 50 to 10,000 eV energy range. Finally,
    we have obtained a predictive MED equation that could be applied to the wide range
    of experimental conditions that are used in high-energy XPS with synchrotron radiation.\r\n"
  description_type: abstract
  lang: en

## Creator

- name: Yoshikawa, Hideki
  role: author
  orcid: https://orcid.org/0000-0002-7389-8865
- name: Shinotsuka, Hiroshi
  role: author
  orcid: https://orcid.org/0000-0001-5147-1396
- name: Tanuma, Shigeo
  role: author
  orcid: https://orcid.org/0000-0003-2628-9941
- name: Ueda, Ryuichi
  role: author

## Contact agent



## Publisher

organization: Elsevier

## Managing organization



## Keyword

- subject: MED
  schema: not_defined
- subject: high-energy photoelectron spectroscopy
  schema: not_defined
- subject: asymmetry parameter
  schema: not_defined
- subject: lnearly polarized X-rays
  schema: not_defined
- subject: mean escape depth
  schema: not_defined

## Rights

- description: Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
  identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

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## Fileset

- id: 257c3a13-038b-45f5-8b00-795f57777ab3
  filename: 13_MED_SA2.pdf
  content_type: application/pdf
  size: 2577384
  md5: '093b28bf6859c7150909cd798d39a1fa'

## Thumbnail

fileset_id: 257c3a13-038b-45f5-8b00-795f57777ab3
filename: 13_MED_SA2.pdf