In addition, there are two safety control rods and four surge tanks, making six independent safety systems.
2.
Scram is usually cited as being an acronym for "'safety control rod axe man "'; however, the term is probably a backronym.
3.
The term is usually cited as being an acronym for "'safety control rod axe man "', which was supposedly coined by Enrico Fermi when the world's first nuclear reactor was built under the spectator seating at the University of Chicago's Stagg Field, but Mechanism ", both of which are probably backronyms . " Scram " is American English slang for leaving quickly and urgently, which has been cited as the original basis for the use of scram in the technical context.
4.
When I showed up on the balcony on that December 2, 1942 afternoon, I was ushered to the balcony rail, handed a well sharpened fireman's axe and told, " if the safety rods fail to operate, cut that manila rope . " The safety rods, needless to say, worked, the rope was not cut . . . I don't believe I have ever felt quite as foolish as I did then . . . . I did not get the SCRAM [ Safety Control Rod Axe Man ] story until many years after the fact.
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