# Calculating prompt neutron lifetime

**URL:** <https://openmc.discourse.group/t/calculating-prompt-neutron-lifetime/5571>\
**Category:** User Support\
**Created:** [June 2, 2025, 2:54pm UTC](https://openmc.discourse.group/t/calculating-prompt-neutron-lifetime/5571 "2025-06-02T14:54:31Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![s\_rahman\_wave](https://avatars.discourse-cdn.com/v4/letter/s/b5ac83/32.png) [@s\_rahman\_wave](https://openmc.discourse.group/u/s_rahman_wave)\
**Post date:** [June 2, 2025, 2:54pm UTC](https://openmc.discourse.group/t/calculating-prompt-neutron-lifetime/5571/1 "2025-06-02T14:54:31Z")

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Is there any way to calculate prompt neutron lifetime with the current version of openmc…