# Burnup analysis

**URL:** <https://openmc.discourse.group/t/burnup-analysis/535>\
**Category:** User Support\
**Created:** [January 8, 2020, 8:06pm UTC](https://openmc.discourse.group/t/burnup-analysis/535 "2020-01-08T20:06:48Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Javier\_Gonzalez](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/javier_gonzalez/32/1095_2.png) [@Javier\_Gonzalez](https://openmc.discourse.group/u/Javier_Gonzalez)\
**Post date:** [January 8, 2020, 8:06pm UTC](https://openmc.discourse.group/t/burnup-analysis/535/1 "2020-01-08T20:06:48Z")

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Hi guys,

I will conduct an analysis where I need to report the results at different burnup steps: 0, 0.1, 0.2, 4 and 8 MWd/tU. Please, someone can tell how to include these burnup steps in my depletion simulation?

Thanks,

Javier

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**Author:** ![paulromano](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/paulromano/32/486_2.png) [@paulromano](https://openmc.discourse.group/u/paulromano)\
**Post date:** [January 10, 2020, 1:34pm UTC](https://openmc.discourse.group/t/burnup-analysis/535/2 "2020-01-10T13:34:44Z")

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Hi Javier,

After you create an Operator, you can ask for the total heavy metal mass in [g] via the heavy\_metal attribute:

op = openmc.deplete.Operator(geometry, settings)  
grams = op.heavy\_metal

With that, you can then figure out what those burnup steps would correspond to in seconds. Note that a future version may allow users to [specify this directly](https://github.com/openmc-dev/openmc/issues/1410).

Best regards,  
Paul

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**Author:** ![Javier\_Gonzalez](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/javier_gonzalez/32/1095_2.png) [@Javier\_Gonzalez](https://openmc.discourse.group/u/Javier_Gonzalez)\
**Post date:** [January 10, 2020, 4:34pm UTC](https://openmc.discourse.group/t/burnup-analysis/535/3 "2020-01-10T16:34:36Z")

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Okay Paul, thanks for letting me know about the new improvements, great!

Javier
