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Question Detector Efficiency( Sensitivity counts) 

Forum: Hits, Digitization and Pileup
Date: 20 Oct, 2004
From: jamil <jamil>

Hi ! 
how you doing, I am beginner of G4.
I have the following Detector set up which is like as:
                          0.005, // GND(copper)
                          0.200, // bakelite1 ****
                          0.200, // Gas Gap I
                          0.200, // bakelite2 ****
                          0.000, //insulator
                          0.050, // strips(copper)
                          0.050, //base(bakelite) 
                          0.050, //insulator
                          0.200, // bakelite3 ****
                          0.200, // Gas Gap II
                          0.200, // bakelite4 ****
                          0.005  // GND(copper)
I want to simulate gamma particles in my sensitive detector;Which are

The Gas Gap I

Strips(copper)( copper strips I took as the charged particle get detected on it)

The Gas Gap II,

which are the three regions of my sensitive detector, 1) Should I use the calorimetr types sensitive detector Or the Tracker types detector? Which one would be better for this kinds of simulation work?

I want to pass 10000 gammas and find the detector efficiency as; sen= Ni/No Where Ni= Number of charged particles reaching any of the GAS Gap I or IIin my RPC( detector) No is the numbr of orignal primary particles impinging on the RPC detector.

2) I want to plot the efficieny(my detector sensitivity) vs gamma energy graph( at different energy scales).How to do it?

Pls guide me step by step, as I am new in this field, how to make mine code and do some changes;I have already made my detector geometry.

I am sorry If I have sent wrong questions to this forum of hits,digitization and pile up group.

Hope you will help me and give me some suggestions!

With best Wishes,


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