Exploring Core and Segment Signals in Gamma-ray Detectors

[sakkoyun]

Hello all,
lets think we have a segmented gamma-ray detector. when a gamma-ray interacts several segment of the detector, it deposits energies in each of them.
And we can get a energy spectrum due to this gamma-ray. is the signal from core of the detector or from segments?
what is the meaning of the "core signal" and "segment signals"? what is the difference between them?

Regards,
Serkan

 

[Bob S]

A segmented gamma ray detector is usually formed with alternating layers of iron or lead and layers of detector (scintillator or multiwire ionization chambers). Gamma rays convert to electromagnetic showers (showers of photons, electrons, and positrons) in the iron or lead, and the scintillators or multiwire chambers detect the signal produced by the ionization of the electromagnetic shower. There is no signal detected in the iron or lead segments.

 

[sir-pinski]

Hello Serkan,

Thank you for sharing this interesting scenario. In this case, the "core signal" refers to the overall energy signal detected by the gamma-ray detector, while the "segment signals" refer to the individual energy signals detected by each segment of the detector. The difference between them is that the core signal represents the total energy deposited by the gamma-ray in the entire detector, while the segment signals represent the specific energies deposited in each segment.

The core signal is important as it gives us an overall picture of the energy spectrum of the gamma-ray, while the segment signals can provide more detailed information about where the energy was deposited and potentially help us identify the source of the gamma-ray. Both the core and segment signals are essential in understanding the properties and behavior of gamma-rays.

I hope this helps clarify the concept of core and segment signals in a segmented gamma-ray detector. Thank you for sharing your thoughts on this topic.

Best regards,