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Uranium Decay Calculator

(last updated 25 Mar 2024)
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For educational purposes only. No warranty.

Calculate radioactive decay and ingrowth of uranium and its decay products for a variety of nuclide mixes found in the nuclear fuel industry.
Covers the natural U-238 and U-235 series, and the artificial U-236 and U-232 series.

Enter the parameters and click the "Calculate" button below. HELP
Numbers can be entered in exponential notation: 5 · 10-6 = 5e-6
"t" means metric tonne.

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Material Input
InputTypeParameters

ng
µg
mg
g
kg
t
 U in/as

Bq U-238 in
Bq Unat in
Bq Ra-226 in
 ore
mill tailings		 ore grade % U
mill loss %
U
UCl4
UF4
UF6
UO2
UO2F2
UO2(NO3)2
UO3
U3O8
natural uranium
in equilibrium with progeny
pure
enriched to wt% U-235
depleted to wt% U-235
(from enrichment to wt% U-235)
recycled uranium
burnup · initial enrichment:

(5 year storage time after unload)
as is
re-enriched to initial U-235 equivalent
depleted to 0.2 wt% U-235

Output Parameters
Time PeriodChart TypeChart DataChart DetailChart Axes
Chart End Time
years

List Time
years

Mark list time in chart
 no chart

line chart
stacked areas
 totals of each decay series
all individual nuclides
individual nuclides for selected series:
      (multiple selections with CTRL-key)


show total for selection *
 log. Y axis *
     Decades on log. Y axis:
     

log. X axis
* line chart only
 
       HELP
 

Results


(... copy and paste ...)
 

 

(Click legend items to toggle specific curves on/off)
 

 

> See also:

 

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