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About contol rods used in boiling water reactor

  1. Jun 23, 2016 #1
    why Cross shaped contol rods used in boiling water reactor?
    thanks in adavance for answer .
     
  2. jcsd
  3. Jun 23, 2016 #2
    The control rods are composed of blades in a shape of cruciform in order to move through the gaps formed between channels of fuel assemblies.
    A velocity damper is also provided at the lower portion
    of the control rod
    to slow down the dropping velocity in case of a accident.
    for details one can visit: http://atominfo.ru/files/fukus/npp2.pdf
     
  4. Jun 23, 2016 #3
    thank you for your valuable answer .
     
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