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Related Experiment Video

Updated: Jun 26, 2026

$Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2$

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

Published on: December 8, 2016

Outer layer scintillating fiber for low-energy β-ray detection.

Sho Toyama¹, Shigeo Matsuyama¹, Misako Miwa¹

¹Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan.

The Review of Scientific Instruments

|December 3, 2022

Summary

A novel outer-layer scintillating (OLS) fiber effectively detects low-energy beta rays, overcoming limitations of standard fibers. This advancement enables precise detection of low-energy beta emitters like Ni-63.

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Published on: January 30, 2020

Area of Science:

Nuclear Physics
Materials Science
Radiation Detection

Background:

Standard plastic scintillating fibers are ineffective for low-energy beta-ray detection due to cladding interference.
Low-energy beta emitters require specialized detection methods for accurate measurement.

Purpose of the Study:

To develop and evaluate an outer-layer scintillating (OLS) fiber for enhanced low-energy beta-ray detection.
To characterize the optical properties and detection capabilities of the novel OLS fiber.

Main Methods:

Construction of an outer-layer scintillating (OLS) fiber with a scintillator on the outermost layer.
Evaluation of fundamental optical properties: emission spectrum, attenuation length, and scintillation decay time.
Simulation and experimental measurement of Ni-63 (a low-energy beta emitter) using OLS fibers and silicon photomultiplier photosensors in coincidence mode.

Main Results:

The OLS fiber demonstrated effective detection of low-energy beta rays.
Fundamental optical properties of the OLS fiber were characterized.
Ni-63 beta emissions were successfully measured using OLS fibers and silicon photomultiplier photosensors in coincidence.

Conclusions:

The developed OLS fiber is a viable and effective solution for detecting low-energy beta rays.
This technology overcomes the limitations of conventional scintillating fibers for specific applications.