APS Excellence in Physics Education Award
November 2019
Science SPORE Prize
November 2011
The Open Source Physics Project is supported by NSF DUE-0442581.
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X-Ray Diffraction JS Model Documents
This material has 3 associated documents. Select a document title to view a document's information.
Main Document
written by
Wolfgang Christian
How did Rosalind Franklin discover the helical structure of DNA? The X-Ray Diffraction JavaScript Model computes diffraction patterns from first principles for simple apertures including a sinusoidal wave corresponding to a 2D projection of a helix as described in a paper by Braun, Tierney and Schmitzer.
"How Rosalind Franklin Discovered the Helical Structure of DNA: Experiments in Diffraction," Gregory Braun, Dennis Tierney and Heidrun Schmitzer, The Physics Teacher, vol 49.3, 140-143 (2011).
The X-Ray Diffraction JavaScript Model was developed using the Easy Java Simulations (EJS) version 5. This beta release is distributed as a ready-to-run html page and requires only a browser with JavaScript support.
Last Modified January 20, 2017
 This file has previous versions.
Source Code Documents (2)
A diffraction simulation with two-dimensional apertures.
Last Modified September 29, 2023
This file has previous versions.
JavaScript EJS source code for 2D x-ray diffraction.
Last Modified September 29, 2023
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X-Ray Diffraction JS Model
