Nuclear toi

Table of Radioactive Isotopes (toi) API

Link to the npm package

An npm package to query data from the Lund/LBNL Nuclear Data Search (http://nucleardata.nuclear.lu.se/toi/) Table of Isotopes. It queries data from the database and act as an API for their very simple (and very, very yellow) website. It behaves like an API for you, but what it actually does is making GET requests to their server and parsing the html tables they use.

At the moment this is very simple since it's born to serve a purpose in another program I'm working on for my master thesis, but I'm planning on actively expanding on it since the world deserves a better API to query nuclear data in Node.js.

Features:

• Get all the possible elements decaying with gamma rays in a given energy
• Guess what elements may be responsible for a spectra by the energy peaks

Usage examples:

• Get elements decaying with gamma rays from 300 keV to 301.999.. kEv

  var Toi = require('nuclear-toi');
  
  // Everything returns a promise
  
  /**
   * Get the elements decaying at the specified energy range. return a promise
   * from: energy in keV (integer)
   * to: energy in keV (integer)
   */
  Toi.getGammaAtEnergyRange(300, 301).then(data => {
    for (var x of data) {
        console.log(x);
    }
  });

  Output:

  { Energy: 300, Intensity: 0.015, Element: '224Ac', Decay: 'a' }
  { Energy: 300, Intensity: 0.0225, Element: '223Fr', Decay: 'b-' }
  { Energy: 300, Intensity: 0.15, Element: '236Pa', Decay: 'b-' }
  { Energy: 300, Intensity: 0.23, Element: '151Dy', Decay: 'e+b+' }
  { Energy: 300, Intensity: 0.34, Element: '227Th', Decay: 'a' }
  { Energy: 300, Intensity: 2.32, Element: '227Th', Decay: 'a' }
  { Energy: 300, Intensity: 5.2, Element: '179Pt', Decay: 'e+b+' }
  { Energy: 300, Intensity: 6, Element: '134Sm', Decay: 'e+b+' }
  ....

• Get elements decaying at least with gamma energy 333±1 keV, 444±1 keV and 555±1 keV.

  var Toi = require('nuclear-toi');
  /**
   * Get all the possible elements with the specified energies, within an error
   * First argument: number[] energyArray in keV
   * Second argument: number error in keV
   */
   Toi.getPossibleElementsWithError([333,444,555], 1).then(data => {
      for (var x of data) {
          console.log(x);
      }
  });

  Output:

  185Au
  119I
  228Pa
  104mRh
  185Au

Get in touch

For any question, new features request or problem please fill an issue or email me at dcat (at) protonmail (dot) com. I'll be glad to hear form you and try to help as I can.

This was made by Trintragula (Daniele) in 2017. Don't use this for anything evil and try to respect the service this is based on.

I'll write a blog post abou this sooner or later at blog.danielescarinci.com