webdedx

The user guide is under construction. It will cover:

Getting started with stopping power calculations
Choosing particles, materials, and programs
Understanding energy units (MeV, MeV/nucl, MeV/u)
Creating and comparing plots
Exporting data to CSV and PDF
Using advanced options (density override, MSTAR modes)
Loading external .webdedx data files

Shareable URL examples

The app stores calculator and plot state in the URL so you can bookmark or share exact scenarios. These examples use the current urlv=2 syntax.

Basic calculator example

Open Calculator in Basic mode with proton, liquid water, ICRU 49, and a single 100 MeV row:

http://sveltekit-prerender../calculator?urlv=2&particle=1&material=276&program=7&energies=100&eunit=MeV

Advanced calculator example

Open Calculator in Advanced mode with carbon-12 in liquid water and three energy rows:

http://sveltekit-prerender../calculator?urlv=2&particle=6&material=276&program=7&energies=25,50,100&eunit=MeV&mode=advanced

Loading external datasets

External stopping-power tables can be loaded by opening Calculator or Plot with an extdata query parameter. The format is extdata=<label>:<encoded dataset URL>, where the dataset URL points to the root of a hosted .webdedx directory.

After loading, the source appears in a collapsible External Data Sources panel below the entity selectors. Programs from the loaded source are listed in the Program selector under an External group with a 🔗 prefix and an (ext) suffix. External-only particles and materials (those that don't merge with a built-in libdedx entry) appear in External groups in their respective selectors.

Calculator example

Open Calculator with the public SRIM GUI reference dataset, proton in liquid water, ICRU 49, and a single 100 MeV row:

http://sveltekit-prerender../calculator?urlv=2&extdata=srim:https%3A%2F%2Fs3.cloud.cyfronet.pl%2Fdedxweb%2Fsrim-gui.webdedx%2F&particle=1&material=276&program=7&energies=100&eunit=MeV

Plot example

Open Plot with the same SRIM dataset, proton in liquid water, and ICRU 49 as the selected program:

http://sveltekit-prerender../plot?urlv=2&extdata=srim:https%3A%2F%2Fs3.cloud.cyfronet.pl%2Fdedxweb%2Fsrim-gui.webdedx%2F&particle=1&material=276&program=7

Keyboard shortcuts

The entity picker (Particle / Material / Program) supports keyboard-first navigation:

Key	Action
/	Focus the search field (expands panel if collapsed)
↑ / ↓	Move highlight up / down through the list
↵ Enter	Select highlighted item; advances to the next empty field automatically
Escape	Blur focus and collapse the picker (on the Calculator page)
← / →	Cycle between Particle / Material / Program tabs (when a tab button is focused)

Tip: press /, type to filter, use ↑↓ to highlight, then ↵ to confirm and automatically move to the next field.