BABYSCAN - a whole body counter for small children in Fukushima
  BABYSCAN, a whole body counter for small children with a detection limit for $^{137}$Cs of better than 50 Bq/body, was developed, and the first unit has been installed at a hospital in Fukushima, to help families with small children who are very much concerned about internal exposures. The design principles, implementation details and the initial operating experience are described. 
Ryugo S. Hayano and Shunji Yamanaka and Frazier L. Bronson and   Babatunde Oginni and Isamu Muramatsu
physics.med-ph