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// strontium-90
'Sr-90' : {
halflife : convert.years(28.8),
product : 'Y-90',
molarMass : convert.atomicMassMolar(90)
},
'Y-90' : {
halflife : convert.hours(64),
product : 'Zr-90',
molarMass : convert.atomicMassMolar(90)
},
// cesium-134
'Cs-134' : {
halflife : convert.years(2.0652),
product : 'Ba-134',
molarMass : convert.atomicMassMolar(134)
},
// cesium-137
'Cs-137' : {
halflife : convert.years(30.17),
product : 'Ba-137m',
molarMass : convert.atomicMassMolar(137)
},
'Ba-137m' : {
halflife : convert.seconds(153),
product : 'Ba-137',
molarMass : convert.atomicMassMolar(136.9058274)
},
// Neptunium series
'Cf-249' : {
halflife : convert.years(351),
product : 'Cm-245',
molarMass : convert.atomicMassMolar(249.0748535)
},
'Cm-245' : {
halflife : convert.years(8500),
product : 'Pu-241',
molarMass : convert.atomicMassMolar(245.0654912)
},
'Pu-241' : {
halflife : convert.years(14.4),
product : 'Am-241',
molarMass : convert.atomicMassMolar(241.0568515)
},
'Am-241' : {
halflife : convert.years(432.7),
product : 'Np-237',
molarMass : convert.atomicMassMolar(241.0568291)
},
'Np-237' : {
halflife : convert.years(2.14) * convert.E(6),
product : 'Pa-233',
molarMass : convert.atomicMassMolar(237.0481734)
},
'Pa-233' : {
halflife : convert.days(27.0),
product : 'U-233',
require.register("reinpk-isotope-data/index.js", function(exports, require, module){
var convert = require('convert');
// Halflives and products taken during Jan & Mar 2013 from
// http://en.wikipedia.org/wiki/Decay_chain
// Atomic masses taken during Mar 2013 from
// http://physics.nist.gov/cgi-bin/Compositions/stand_alone.pl
module.exports = {
// Thorium series
'Cf-252' : {
halflife : convert.years(2.645),
product : 'Cm-248',
molarMass : convert.atomicMassMolar(252.081626)
},
'Cm-248' : {
halflife : convert.years(3.4) * convert.E(5),
product : 'Pu-244',
molarMass : convert.atomicMassMolar(248.072349)
},
'Cm-244' : {
halflife : convert.years(18.1),
product : 'Pu-240',
molarMass : convert.atomicMassMolar(244.0627526)
},
'Pu-244' : {
halflife : convert.years(8) * convert.E(7),
product : 'U-240',
halflife : convert.years(7.04) * convert.E(8),
product : 'Th-231',
molarMass : convert.atomicMassMolar(235.0439299)
},
'Th-231' : {
halflife : convert.hours(25.52),
product : 'Pa-231',
molarMass : convert.atomicMassMolar(231)
},
'Pa-231' : {
halflife : convert.years(32760),
product : 'Ac-227',
molarMass : convert.atomicMassMolar(231.0358840)
},
'Ac-227' : {
halflife : convert.years(21.772),
products : [
{
fraction : 0.9862,
product : 'Th-227'
},
{
fraction : 0.0138,
product : 'Fr-223'
}
],
molarMass : convert.atomicMassMolar(227.0277521)
},
'Th-227' : {
halflife : convert.days(18.68),
product : 'Ra-223',
molarMass : convert.atomicMassMolar(227)
halflife : convert.years(6561),
product : 'U-236',
molarMass : convert.atomicMassMolar(240.0538135)
},
'Pu-236' : {
halflife : convert.years(2.858),
product : 'U-232',
molarMass : convert.atomicMassMolar(236)
},
'U-236' : {
halflife : convert.years(2.3) * convert.E(7),
product : 'Th-232',
molarMass : convert.atomicMassMolar(236.0455680)
},
'U-232' : {
halflife : convert.years(68.9),
product : 'Th-228',
molarMass : convert.atomicMassMolar(232)
},
'Th-232' : {
halflife : convert.years(1.405) * convert.E(10),
product : 'Ra-228',
molarMass : convert.atomicMassMolar(232.0380553)
},
'Ra-228' : {
halflife : convert.years(5.75),
product : 'Ac-228',
molarMass : convert.atomicMassMolar(228.0310703)
},
'Ac-228' : {
halflife : convert.hours(6.25),
product : 'Th-228',
halflife : convert.hours(6.70),
product : 'U-234',
molarMass : convert.atomicMassMolar(234)
},
'U-234' : {
halflife : convert.years(245500),
product : 'Th-230',
molarMass : convert.atomicMassMolar(234.0409521)
},
'Th-230' : {
halflife : convert.years(75380),
product : 'Ra-226',
molarMass : convert.atomicMassMolar(230.0331338)
},
'Ra-226' : {
halflife : convert.years(1602),
product : 'Rn-222',
molarMass : convert.atomicMassMolar(226.0254098)
},
'Rn-222' : {
halflife : convert.days(3.8235),
product : 'Po-218',
molarMass : convert.atomicMassMolar(222)
},
'Po-218' : {
halflife : convert.minutes(3.10),
products : [
{
fraction : 0.9998,
product : 'Pb-214'
},
{
halflife : convert.years(2.41) * convert.E(4),
product : 'U-235',
molarMass : convert.atomicMassMolar(239.0521634)
},
'U-235' : {
halflife : convert.years(7.04) * convert.E(8),
product : 'Th-231',
molarMass : convert.atomicMassMolar(235.0439299)
},
'Th-231' : {
halflife : convert.hours(25.52),
product : 'Pa-231',
molarMass : convert.atomicMassMolar(231)
},
'Pa-231' : {
halflife : convert.years(32760),
product : 'Ac-227',
molarMass : convert.atomicMassMolar(231.0358840)
},
'Ac-227' : {
halflife : convert.years(21.772),
products : [
{
fraction : 0.9862,
product : 'Th-227'
},
{
fraction : 0.0138,
product : 'Fr-223'
}
],
molarMass : convert.atomicMassMolar(227.0277521)