Measuring probe for the drilling hole geophysical measurement of the density of the gamma - gamma - the rear of the litter principle

摘要

Measuring probe to the drill hole physical measurement of the density of the gamma - gamma - the rear of the litter principle in bores, ground water measurement points and well, with at least one gamma detector (4), which the gamma - backscatter of a radioactive gamma - radiation source (8) is detected, wherein the measuring probe contains at least one unit, consisting of a common lead shield (7) for the or said gamma detectors (4) and the radiation source (8) and from the in the lead shield (7) arranged radiation source (8) and an exit window (6) for the radiation of the radiation source (8) and from the at least a gamma detector (4), which is likewise in the lead shield (7) with an entrance window (5) for the backscatter to be measured is arranged, wherein the lead shield (7) and the or each of said gamma detectors (4) to rotate about their vertical axis and the radiation source (8) is arranged rigidly, so that, using this unit is a entire horizontal plane is vermessbar.