دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a high-energy gamma ray emitted when the nucleus of an atom captures a neutron and becomes intensely excited. Capture gamma rays are counted by the neutron logging detector.

n: the increased energy condition of the nucleus of an atom after it has captured a neutron. On capture, the nucleus emits a high-energy gamma ray called a capture gamma ray.

n: the number of thermal neutrons around the neutron logging tool. The number of capture gamma rays present at any time is directly proportional to the thermal neutron population.