Erratum to: Radiat Environ Biophys DOI 10.1007/s00411-010-0339-4

Unfortunately, a typing error remained in the original publication of the article. In its abstract (left column, line 21), the text mentions “…22/24 in Rb1±…” what in fact must be “…11/24 in Rb1±…”. We (the authors) are sorry for having caused any misunderstanding.