ich habe einiges mit Maxim geschrieben, da ich auch ein solches Instrument bestellt habe (letztendlich das 8850)- hier in Auszügen:
From my experience bigger sensors are more sensitive?
Not quite. Not only the volume, but also the ratio of the surface area of the crystal to its volume.
More Volume more particles detected?
So 7.5x7.5 x100 should be almost twice as sensitive then 8x8x50 and also be able to detect particles with higher energy in axial direction?
No. The counting speed of 77100 is less than the counting speed of 8850.
If the Electronics / functionality and the SiPM is the same then in the 8850 (
) I think the instument with the bigger Sensor 77100 would be my choice.
Yes, the same.
No. Your choice - 8850.
A narrow and long crystal will be less sensitive to low-energy sources, although it is made of the same material. Watch the video. It is
in Russian, but everything is clear without words. These are X-ray tests. X-rays are a bunch of low energies.
If you want to use the delay in the 77100 reaction to detect a hidden radiation source that is not visible in the environment of normal background radiation, then you can use a pair of detectors.
Detector 8816(or 4735, or Swift) is short and wide.
The 77100 detector is narrow and long.
what happens when you approach a hidden source of low energy?
You will see a syncopated response:
first the short detector, then the long detector.
Similarly, you can play with a combination of detectors : 8816-8850 Swift-8850
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