Why does lowering the control rods in a nuclear reactor reduce the amount of energy released each second from the nuclear fuel?

  • Google+ icon
  • LinkedIn icon
  • 1479 views

The boron control rods absorb slow-moving neutrons (thermal neutrons), which means that there are less available neutrons in the reactor. Since nuclear fission requires a collison between a neutron and a uranium nucleus, less neutrons means less fission reactions taking place. Hence, the rate of energy production decreases.

Luke C. GCSE Physics tutor, GCSE Maths tutor

About the author

is an online GCSE Physics tutor with MyTutor studying at Nottingham University

Still stuck? Get one-to-one help from a personally interviewed subject specialist.

95% of our customers rate us

Browse tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok