Stockholm Research Reactor

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"R1 was the first nuclear reactor of Sweden. It was a research reactor located at the Royal Institute of Technology (KTH) campus at Valhallavägen in central Stockholm, in the rock beneath the current-day Q-Houses. The reactor was active from July 13, 1954 to June 6, 1970. The reactor was dismantled, and there is nothing left of it today; the reactor hall however still exists. The effect of the reactor was originally 300 kW but was later increased to 1 MW."[1]

  • first criticality: 13/07/1954[2] 18.59 o'clock[3]
  • reactor type: pool[2]
  • moderator & coolant: heavy water[2]
  • neutron reflector: graphite[2]
  • therm power: 600.000 kW[2]
  • control rods: 2[2]
  • fuel: natural uranium[3]
  • closed: 1970[3]


  1. http://en.wikipedia.org/w/index.php?title=R1_(nuclear_reactor)&oldid=475725965 as at September 26, 2012
  2. 2.0 2.1 2.2 2.3 2.4 2.5 http://nucleus.iaea.org/RRDB/RR/GeneralInfo.aspx?RId=682 as at September 26, 2012
  3. 3.0 3.1 3.2 http://sv.wikipedia.org/w/index.php?title=R1_(reaktor)&oldid=16826548 as at September 26, 2012

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