Note: The design of thin gap chamber simulation signal source based on field programmable gate array.

Area of Science:

• High-energy physics instrumentation
• Detector simulation technologies
• Signal generation systems

Background:

• The Thin Gap Chamber (TGC) is a critical component of the ATLAS detector at the Large Hadron Collider (LHC).
• Accurate simulation of TGC output signals is essential for detector calibration and performance analysis.
• Existing simulation methods may not fully capture the complex signal characteristics.

Purpose of the Study:

• To design and implement a novel simulation signal source for the Thin Gap Chamber (TGC).
• To generate realistic and random 256-channel simulation signals mimicking TGC detector outputs.
• To ensure the reliability and statistical uniformity of the generated random signals.

Main Methods:

• Utilized a field-programmable gate array (FPGA) as the core component for signal generation.
• Implemented a true random number generator (TRNG) based on timing jitter in ring oscillators.
• Designed a system capable of outputting 256 distinct simulation channels.

Main Results:

• Experimental validation confirmed the uniform distribution of generated random numbers via histogram analysis.
• The designed system demonstrated high operational reliability.
• The simulation source successfully mimics key features of TGC detector output signals.

Conclusions:

• The developed FPGA-based simulation signal source provides a reliable and statistically sound tool for TGC detector studies.
• This system enhances the capabilities for simulating and analyzing data from the ATLAS detector.
• The use of TRNG based on timing jitter offers a robust method for generating random signals in particle physics experiments.