Roentgen equivalent man has been defined since 1976 as equal to 0.01 sievert, which is the more commonly used SI unit outside the United States. A number of earlier definitions going back to 1945 were derived from the roentgen unit, which was named after Wilhelm Röntgen, a German scientist who discovered X-rays. The acronym is now a misleading historical artifact, since 1 roentgen actually deposits about 0.96 rem in soft biological tissue, when all weighting factors equal unity. Older units of rem following other definitions are up to 17% smaller than the modern rem. One rem carries with it a 0.05% chance of
Kevin Roentgen co-produced with Noah Shain a project called Hott Mess, an album of 10 songs written and performed by Roentgen, Shain and singer Shayna Ross. In 2009, Croire en l'homme, was released as the b-side to the debut title track single from Johnny Hallyday's latest album, Ca n'finira jamais. Written by Roentgen and Oliver Leiber, the single debuted at #1 on the French Single Charts, the week of November 14, 2008, and remained number one for two weeks. Later that year, Roentgen produced the Light of Day EP for LA band, Analog Smith. In May 2012, Goldsboro, featuring Roentgen, Chris Cano