# Calculations of Electron Inelastic Mean Free Paths. XI. Data for Liquid Water for Energies from 50 eV to 30 keV

https://mdr.nims.go.jp/datasets/a5d5d969-b21e-48ee-ba3c-a2b63fa5b74f

## File

- [IMFP_XI.pdf](https://mdr.nims.go.jp/filesets/c2f1170b-f5b2-497d-a097-8cbeba35d42e/download) ([Detail](https://mdr.nims.go.jp/filesets/c2f1170b-f5b2-497d-a097-8cbeba35d42e.md))

## Id

a5d5d969-b21e-48ee-ba3c-a2b63fa5b74f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2021-08-05T16:24:06.040665Z

## Updated at

2024-01-05T13:13:02.715288Z

## Published at

2021-08-12T16:20:02.986465Z

## Doi

https://doi.org/10.48505/nims.1442

## First published url

https://doi.org/10.1002/sia.6123

## Date published

2016-08-30

## Recorded date published

2017-4

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Calculations of Electron Inelastic Mean Free Paths. XI. Data for Liquid Water
    for Energies from 50 eV to 30 keV
  title_type: original
  lang: en

## Description

- description: 'We calculated electron inelastic mean free paths (IMFPs) for liquid
    water from its optical energy-loss function (ELF) for electron energies from 50
    eV to 30 keV. These calculations were made with the relativistic full Penn algorithm
    (FPA) that has been used for previous IMFP and electron stopping-power calculations
    for many elemental solids. We also calculated IMFPs of water with three additional
    algorithms: the relativistic single-pole approximation (SPA), the relativistic
    simplified SPA, and the relativistic extended Mermin method. These calculations
    were made using the same optical ELF in order to assess any differences of the
    IMFPs arising from choice of the algorithm. We found good agreement among the
    IMFPs from the four algorithms for energies over 300 eV. For energies less than
    100 eV, however, large differences became apparent. IMFPs from the relativistic
    TPP-2M equation for predicting IMFPs were in good agreement with IMFPs from the
    four algorithms for energies between 300 eV and 30 keV but there was poorer agreement
    for lower energies. We calculated values of the static structure factor as a function
    of momentum transfer from the FPA. The resulting values were in good agreement
    with results from first-principles calculations and with inelastic X-ray scattering
    spectroscopy experiments. We made comparisons of our IMFPs with earlier calculations
    from authors who had used different algorithms and different ELF data sets. IMFP
    differences could then be analyzed in terms of the algorithms and the data sets.
    Finally, we compared our IMFPs with measurements of IMFPs and of a related quantity,
    the effective attenuation length (EAL). There were large variations in the measured
    IMFPs and EALs (as well as their dependence on electron energy). Further measurements
    are therefore required to establish consistent data sets and for more detailed
    comparisons with calculated IMFPs.'
  description_type: abstract
  lang: en

## Creator

- name: Shinotsuka, Hiroshi
  role: author
  orcid: https://orcid.org/0000-0001-5147-1396
- name: Da, Bo
  role: author
  orcid: https://orcid.org/0000-0002-0785-8662
- name: Tanuma, Shigeo
  role: author
  orcid: https://orcid.org/0000-0003-2628-9941
- name: Yoshikawa, Hideki
  role: author
  orcid: https://orcid.org/0000-0002-7389-8865
- name: Powell , Cedric J
  role: author
  orcid: https://orcid.org/0000-0001-8990-2286
- name: Penn, David R
  role: author

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: effective attenuation length
  schema: not_defined
- subject: liquid water
  schema: not_defined
- subject: relativistic full Penn algorithm
  schema: not_defined
- subject: relativistic TPP-2M
  schema: not_defined
- subject: IMFP
  schema: not_defined
- subject: static structure factor
  schema: not_defined
- subject: Electron Inelastic Mean Free Path
  schema: not_defined
- subject: EAL
  schema: not_defined

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## Fileset

- id: c2f1170b-f5b2-497d-a097-8cbeba35d42e
  filename: IMFP_XI.pdf
  content_type: application/pdf
  size: 6427219
  md5: 54a18e43b5c93cdacd8331098cb94d6d

## Thumbnail

fileset_id: c2f1170b-f5b2-497d-a097-8cbeba35d42e
filename: IMFP_XI.pdf