Comparing cross talk in doped scintillating-fiber bundles

Area of Science:

• High-energy physics instrumentation
• Optical fiber technology
• Materials science

Background:

• Particle tracking systems in colliders require precise optical fiber bundles.
• Minimizing cross talk is crucial for accurate data acquisition in these systems.
• Existing methods for cross talk measurement may be complex or limited in scope.

Purpose of the Study:

• To introduce a simple, effective experimental technique for measuring and comparing cross talk in fiber bundles.
• To demonstrate the technique's validity and potential using specific examples.
• To provide a valuable tool for optimizing fiber bundle design in high-energy physics.

Main Methods:

• Development of a straightforward experimental setup to quantify signal leakage between adjacent fibers.
• Utilizing step-index, multimode optical fibers doped with scintillating materials.
• Testing bundles with two distinct scintillators at varying doping concentrations.

Main Results:

• Successful measurement and comparison of cross talk were achieved using the developed technique.
• Results demonstrated the influence of scintillator type and concentration on cross talk levels.
• The technique proved effective in characterizing fiber bundle performance.

Conclusions:

• The presented experimental technique offers a simple and reliable approach to assess cross talk in fiber optic bundles.
• This method is suitable for evaluating components in high-energy particle-tracking systems.
• Further applications of this technique can aid in the development of improved detector technologies.