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Related Experiment Video

Updated: Jun 9, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

Detection of x rays with a fiber-optic interferometric sensor.

F Barone, U Bernini, M Conti

|September 8, 2010

Summary

This study demonstrates a novel fiber-optic sensor for detecting X-rays. The Mach-Zehnder interferometer shows linear response to X-ray energy, enabling precise radiation monitoring.

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Last Updated: Jun 9, 2026

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Published on: September 30, 2019

Area of Science:

Optics and Photonics
Radiation Detection
Materials Science

Background:

Fiber-optic sensors offer sensitive detection methods.
Mach-Zehnder interferometers are suitable for precise phase measurements.
X-ray detection requires robust and linear sensor technology.

Purpose of the Study:

To develop and characterize a fiber-optic Mach-Zehnder interferometer for X-ray detection.
To assess the linearity of the sensor's response to absorbed X-ray energy and X-ray flux.
To explore the potential application of this technique in synchrotron radiation monitoring.

Main Methods:

Utilized a single-mode, polarization-preserving silica fiber exposed to a modulated X-ray beam.
Employed a Mach-Zehnder interferometer to detect phase shifts induced by X-ray absorption-related temperature changes.
Analyzed the power spectrum of the interferometric signal to measure peak amplitude at the modulation frequency.

Main Results:

Demonstrated a linear relationship between absorbed X-ray energy and fiber temperature rise.
Showcased a linear correlation between the peak amplitude in the interferometric signal's power spectrum and the X-ray tube's anodic current.
Confirmed the sensor's capability to detect modulated X-ray beams.

Conclusions:

The fiber-optic Mach-Zehnder interferometer is a viable tool for X-ray detection.
The sensor exhibits linear response characteristics, crucial for quantitative measurements.
This technique holds promise for real-time monitoring of high-intensity radiation sources like synchrotrons.