p44_025 - 25. Let P0 be the initial power output, P be the...

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Unformatted text preview: 25. Let P0 be the initial power output, P be the final power output, k be the multiplication factor, t be the time for the power reduction, and tgen be the neutron generation time. Then, according to the result of Problem 22, P = P0 k t/tgen . We divide by P0 , take the natural logarithm of both sides of the equation and solve for ln k : ln k = tgen 1.3 × 10−3 s P 350 MW = ln ln = −0.0006161 . t P0 2.6 s 1200 MW Hence, k = e−0.0006161 = 0.99938. ...
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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