Neutron activation analysis installation

A neutron activation analysis installation comprising:

• a neutron generator, a target chamber of said neutron generator;
• a receiving and loading assembly;
• a transport means communicating said receiving and loading assembly with said target chamber;
• a test sample impurity concentration measuring unit;
• a through channel communicating said impurity concentration measuring unit with said receiving and loading assembly;
• a through lateral port in said channel;
• an irradiated sample surface layer removal unit located against said port on one side of said channel;
• an irradiated sample distribution assembly disposed against said port on the opposite side of said channel with respect to said surface layer removal unit;
• an air cylinder being the main part of said irradiated sample distribution assembly;
• a hollow rod in said air cylinder;
• a bar arranged along the axis of said hollow rod;
• a sample receiver rigidly fixed on the end of said bar;
• said bar disposed in a manner allowing its rotation about the longitudinal axis thereof and reciprocating motion through said port in said channel so that in one extreme position said bar does not reach said channel leaving it vacant, in the intermediate position of said bar said sample receiver is found in said channel blocking the latter and in the other extreme position of said bar said sample receiver passes through said port in said channel and gets into said surface layer removal unit.