On 11/26/06 10:20 PM, "Adam Maas", <[EMAIL PROTECTED]> wrote:
> modern powerplant designs cannot go critical Enrichment of U-235 is only 3 to 8% on commercial reactors. Weapons grade goes up to 98% etc, so does the military marine propulsion application (for compactness). Much of early British reactors are of graphite moderated type (Chernobyl too) which has a few inherent difficulties in operation such as the emergency cooling etc. Besides, they are obsolete and I do not believe there is any commercial power generation plant of graphite moderator type exists any more (except modern gas cooled ones). British was the first to commercialize the power reactor (Calder Hall) and Japan's first power reactor was of the Calder Hall type in 50's but its days had gone a long long time ago. Commercial power reactors won't become a bomb, by design. Today, small leaks by operator errors are of more concerns. Pentax element :-) 1. Film might fog 2. SR might not work properly near a huge generator Ken -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
