Bragg Law

A beamline companion

Free · Designed for iPad. Not verified for macOS.

This is a handy companion for people engaged in x-ray or neutron diffraction. It provides an easy way to calculate the diffraction angles or d-spacings for a crystal structure. When two of the parameters of Bragg's Law, λ = 2d sin(θ), are provided, the third is calculated. For example if you know energy and d-spacing then the angle θ is calculated. Also for the loaded crystal structure, it provides atomic positions, calculated values for the Kinematic and Dynamical Integrated Intensities, absorption factor, structure factor, and can further provide plots of the rocking curve, mirror reflectivity, F(000), µ, powder pattern, stereographic projection, Laue pattern, multiple reflections, and 3D model of the unit cell and 1st Brillouin zone. Atomic structure factors for X-rays and Neutrons are included. There is the same functionality on both iPhone and iPad.

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

Improved interpretation of chemical formulas when specifying an Absorber, also better handling of alloys with weight percents and isotope mixtures. Cleaned up some interface issues, and some small internal issues. Reordered the tab bar to make finding the Load/Save easier change Version & Build 2.3.2 --> 2.3.3 on November 18, 2025 2:00pm (EDT) hash dbaf52a iOS

Version 2.3.3

The developer, Jonathan Tischler, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

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    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Jonathan Tischler
    Size
    • 13 MB
    Category
    • Reference
    Compatibility
    Requires iOS 13.6 or later.
    • iPhone
      Requires iOS 13.6 or later.
    • iPad
      Requires iPadOS 13.6 or later.
    • iPod touch
      Requires iOS 13.6 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • Copyright © 2024 Jon Tischler. All rights reserved.
  • Privacy Policy

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