| NUKLEONIKA 2013, 58(4):519-525
A WHOLE-BODY SPECTROMETER (WBS) AT THE INSTITUTE
OF NUCLEAR PHYSICS, KRAKÓW - DESIGN AND RESULTS
FOR POLISH CITIZENS VISITING JAPAN DURING THE FUKUSHIMA ACCIDENT
Jerzy W. Mietelski, Paweł Janowski, Renata Kierepko, Roman Hajduk,
Joanna Bogacz, Jan Jurkowski, Ewa Ochab
The Henryk Niewodniczński Institute of Nuclear Physics, Polish Academy of Sciences (IFJ PAN),
152 Radzikowskiego Str., 31-342 Kraków, Poland
The first Polish whole-body spectrometer (WBS) with scintillation detectors was constructed in Łód in the early sixties of the last century and was operating there for more than 30 years. In 2008, the 19th century steel shield of this instrument was transported from Łód to Kraków, where it was re-equipped with a modern gamma spectrometric system. Design and construction of this modernized spectrometer is presented along with the results for in-body contamination measurements of four Polish inhabitants who returned to Poland from Japan after the Fukushima accident compared with the results for typical Polish inhabitants, the volunteers from the Institute of Nuclear Physics (IFJ, Kraków) workers. Although, a clear signal from the Fukushima fallout was noticed for three of four persons who returned from Japan, the calculated doses were negligible. No traces of Fukushima-originating radionuclides were noticed for the examined people who have not traveled to Japan.
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