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An Assessment of Potential Gamma Ray Enhancement of Embrittlement in ABWR Pressure Vessel Walls
FA. Garner
LR. Greenwood
P. Roy
出版
ASTM International
, 1999
URL
http://books.google.com.hk/books?id=u2Z9zgEACAAJ&hl=&source=gbs_api
註釋
It has recently been proposed that the unequal attenuation of ?-rays and fast neutrons in the water gaps of boiling water reactors may lead to a significant underprediction of the atomic displacement rate at the pressure vessel wall. Since a larger water gap has been incorporated in the design of the Advanced Boiling Water Reactor (ABWR), it was suggested that atomic displacements by ?-rays might significantly offset the advantage of reduced neutron damage to the wall gained by using the larger gap. Such a proposal is strongly amplified by another proposed assumption that atomic displacements generated by ?-rays are 100 times more survivable and therefore more damaging than those created by fast neutrons.
