中性子放射化分析法による復水器冷却管の侵食測定-II(日本航海学会第34回講演会)

抄録

Some quantities of Mn in sea water were measured by neutron activation analysis of chemical separation method in order to estimated the erosion of condenser tube of steam engine. The Samples, _ soaked sea water added MnCl_2 into a piece of filter paper were bombarded in thermal neutron flux of 4×10^<12>n/cm^2・sec for 20minutes at the Research Reactor Institute Kyoto University. After the bombardments, the samples were chemically separated Mn from ^<24>Na and ^<38>Cl to make microanalysis, the activities of ^<56>Mn were measured with RCL-256 channel pulse height analyzer. Mn in sea water could be determined up to 0.00005mg in 1cc of sea water with chemical separation method. The results of this experiments show the posibility of erosion in condenser tube by neutron activation analysis.