Wilbert Smith Archives Files Box 1131 19 1131-19-p037

Document Text (OCR)

Multielement analysis systems based on NAA already are in use in the USSR. The next decade will witness innovations in the application of NAA and in auxiliary equipment. But the fundamental technology will undergo only minimal change. is typified Improved dete no value; the To make matt > clements this example do not produce particularly good photopeaks other than 0.511 MeV. The solution in such a case is to count the sample twice, using different decay times following irradiation, Then,...