OT: SL1 had , like your Navy cores, a lot of "worth" in its control rods. As you know they're real hot-rod reactors (no pun intended) compared to civilian plants.
The reactor had no way of knowing that rod was being pulled by a workman utterly unaware of what he was doing. Had it been at power an overpower trip would've dropped the other rods and temperature coefficient would've completed the shutdown.
my point was there's not an inherent mechanism in a PWR that'll put it into that state, void coeffficient is negative not positive.
That big Russian graphite reactor had a large void coefficient that was positive, like 4X enough to drive it prompt.
US has a few graphite jobs leftover from Manhattan project of which i know little.
I had not known of the Russians' myriad troubles.
Found an interesting link:
http://spb.org.ru/bellona/ehome/russia/nfl/nfl8.htmThey wrecked a couple by lifting the heads with rods still attached.
from paragraph '8.4 Causes of Accident [606]'
The administrative body of the military industrial complex, led by the vice-chairman of the council of ministers, itself issued the documents that established the norms, and it was this same body that monitored and enforced the norms that it had itself created. The practice of merging the functions of public agencies contributed to the fact that the Navy itself did not take part in working out quality control and safety requirements for nuclear submarines. Even if the Navy politely refused to receive equipment that they knew in advance to be defective, it could nonetheless be forced to accept it through a common resolution issued by the authorities.
They too stumbled acrosstwo of Parkinson's Laws, 'Bureaucracy expands to occupy the available resources...' and "Bureaucrats want subordinates not peers".
You are right about low level waste we're not doing the right thing there either.
Here's Barnwell's link:
http://74.125.47.132/search?q=cache:GZppei_sjhAJ:www.scdhec.net/environment/lwm/pubs/barnwell_llwdf_status.pdf+barnwell+cu+ft&cd=7&hl=en&ct=clnk&gl=usTable II
Annual Volumes & Activities of Waste at the Barnwell Facility, one of several around country.
Year National Volume(cubic feet) South Carolina Volume (cubic feet) Total Activity (curies)
2000 *..........117,965.54......................5,081.97.................................701,590.37
2001............109,591.83 .....................5,073.30.................................482,590.37
2002.............52,163.23......................4,380.04 ................................134,996.88
2003.............71,416.22......................3,093.35.................................608,147.43
2004.............57,241.56......................3,813.21.................................336,221.29
2005.............42,784.9........................4,089.44.................................517,638.39
2006.............38,465.53.......................2,557.72................................321,998.01
Total............489,628.89.....................28,089.03..............................3,103,182.59
lots more cubic feet of low level than high.
utilities are getting better at using common sense to minimize how much low level waste we generate - eg wipe up a small spill with a paper towel instead of a big mop-head.
sorry for the hijack, guys. methinks this horse is in its last throes.......
we can decide either to give up or to get better.
a.
Cogito ergo doleo.