Icon of program: Twin Calculator

Twin Calculator for Windows

By Ross AngelFreeUser Rating

Key Details of Twin Calculator

  • Determine the relative orientation of any pair of crystals.
  • Last updated on September 4, 2015
  • Virus scan status:

    Clean (it's extremely likely that this software program is clean)

Enlarged image for Twin Calculator

Developer's Description

Determine the relative orientation of any pair of crystals.

With Twin Calculator, determine the relative orientation of crystals whose orientation matrices have been determined at the same time by single-crystal diffraction. This will work not only for twins but also for any pair of crystals that are in the same sample and have been measured on the same mount. So, use it for twins, inclusions, and any co-existing 'single' crystals.

First enter the UB matrix for the first crystal on the left and push the Read UB button. Do the same for the UB of the second crystal on the right hand side. (You can use any definition of UB matrix, provided the definition is the same for both crystals).

To calculate which planes of one crystal are parallel to the other, just enter an hkl in one of the boxes hkl1 or hkl2. Pushing the button Index hkl1 as Crystal2 will then calculate the indices of the plane in crystal 2 that is parallel to the plane indexed as hkl1 in crystal1, and display the result in the box hkl2. The transformation matrix from crystal 1 to crystal 2 is also displayed.

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Full Specifications

August 17, 2012
Latest update
September 4, 2015
Operating System
Windows 7, Windows Vista, Windows XP, Windows 10
Additional Requirements
Total Downloads
Downloads Last Week

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