Wilbert Smith Archives Files Box 1131 19 1131-19-p035

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est), and a ceived in a multichannel an: reduction and sampling wer The neutron source was reactor, often requiring sche: delay before completion of an operationally complex tor-type of fast neutron generator. The detector usually was of the scintillation type, often no more than 3 to 5 cm in length or diameter. Today, the system is likely to be more elaborate, depending on the analytical needs. A reactor is an unexcelled source of slow or thermal neutrons. But the need for rapid anal: may...