Most powerful pulsed spallation neutron source

According to Official Guinness Records,

The Spallation Neutron Source at the Oak Ridge National Laboratory (USA) is the most powerful of its kind in the world. By using a proton beam to pound a mercury target with more than 300 kilowatts of energy, it is able to produce 4.8x10(^16) neutrons per second. These neutrons will eventually be focussed into beams that will allow the molecular analysis of advanced materials. (^16) = to the power of 16.

For a complete list of 2008 records, please visit 2008 Guinness Records in United States.

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