About 1 hour after shutdown, the decay heat will be about 1.5% of the previous core power. After a day, the decay heat falls to 0.4%, and after a week it will be only 0.2%.
Riboflavin, also known as vitamin B2, is a vitamin found in food and used as a dietary supplement. As a supplement it is used to prevent and treat riboflavin deficiency and prevent migraines. It may be given by mouth or injection. It is nearly always well tolerated.
riboflavin deficiency A condition caused by a relative lack of riboflavin in the diet; riboflavin deficiency is rare, given its wide distribution in foods, and is almost invariably accompanied by deficiencies of other water-soluble vitamins. Clinical findings