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CH357-031/032 (Energy spectrum measurement while drilling)

CH357-03 scintillation detector (while drilling) is a high-temperature resistant and anti-vibration scintillation detector. It integrates high temperature and vibration-resistant NaI (Tl) crystal, PMT and voltage divider circuit. The unique design ensures the stable performance of the detector in high temperature vibration environment.

This product has the advantages of simple and convenient use, high reliability and not easy to damage. It is mainly used in density logging in oil logging environment. The detector is divided into long source distance detector and short source distance detector.


Specifications
Model
CH357-031/032 (Energy spectrum measurement while drilling)

1) Performance tests use 137Cs;

2) High temperature output pulse amplitude decrease =(Output pulse amplitude at 25°C - Output pulse amplitude at 175℃)/ Output pulse amplitude at 25°C ×100%;

3) Counting rate change induced by vibration: Change in counting rate above 60 keV in vibration state relative to non-vibration state;

4) BASE: Counting rate of non-vibration state, count per second;

5) Output pulse amplitude change induced by vibration: Change in vibration state relative to non-vibration state;

6) Resonance frequency ≥1000Hz;

7) Tempreature change rate during detector operation and storage≤3℃/min.