Device for analyzing mineral substances using the method of neutron activation analysis

摘要

1. Geophysical nuclear analytical device particularly for the analysis of mineral substances, including an activation unit (1) which irradiates the one part of the sample taken from the material to be tested with fast neutrons and the other part with slow neutrons, and a pneumatic sample transport device (4) connecting this activation unit (1) with a sample delivery unit (2) and with a high energy measuring station (3), characterized in that at least two low energy measuring stations (7a, 7b) are provided, each of which consists of an excitation radiation unit (5a or 5b respectively) for generating soft gamma radiation each with a differing energy spectrum and which are associated with the other samples taken from the material to be tested, and a detector unit (6a or 6b, respectively) as well as a sample store (8a or 8b) which is associated with these units (5, 6), the detector outputs of the high energy measuring station and those of the low energy measuring station (7a, 7b) as well as the control inputs of the pneumatic sample transport device (4) and the sample store (8) being connected to a central control and data storing and evaluating unit (9).