To be specific, she WAS most likely in Chernobyl during the time she claimed and DID take those pictures however, she was not alone on a motorcycle with an unlimited pass to the city.
It seems she was on Chernobyl tour bus with her husband taking those pictures and a wild imagination to come up with the story.
http://pripyat.com/en/publications/2005/06/06/180.html
Oh and SHIFT518 Chernobyl Trip?
Me, Ilya and Vot as trasnlators/tour guides. :lol