title: Comparison between the free-air ionization chamber of the Health Physics Laboratory of the C.N.E.N. of Bologna and the chambers of other European laboratories.
mesh_terms: D004566:Electrodes; D005060:Europe; D007478:Iontophoresis / Q000295:instrumentation*; D007558:Italy; D007753:Laboratories; D008722:Methods; D011827:Radiation; D011874:Radiometry; D013679:Technology, Radiologic