Feasibility Analysis of Exploring Underground Utilities Using Muon

Seunghwan Seo; Moonkyung Chung; Kiseok Kwak; Jae Mo Kang

doi:10.7843/kgs.2022.38.11.137

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2022 Vol.38, Issue 11 Preview Page Next Page

Feasibility Analysis of Exploring Underground Utilities Using Muon 뮤온 입자를 활용한 지하매설물 탐사 가능성 분석

30 November 2022. pp. 137-147

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Abstract

Various geophysical exploration methods are used to determine the exact location of underground utilities, and many studies have been performed to improve the accuracy. This study analyzed the feasibility of exploring underground utilities through a new exploration method using cosmic ray muon. A prototype of a portable muon detector was manufactured by combining a scintillator and a silicon photomultiplier. Further, a calibration operation was performed on the muon count rate. The ground thickness of the ground model was measured using the muon detector prototype, where the value could be estimated with an error of about 3%, close to the actual. In addition, the theoretical basis for tomography analysis technology was analyzed to utilize the muon detector for exploring underground utilities, and a zenith angle correction method was presented. This study revealed that the technology of exploration using muon can analyze density with high resolution and will be used for exploring underground utilities.

Keywords

Detector

Exploration

Muon

Tomography, Underground

지하시설물의 정확한 매설위치를 파악하기 위해 다양한 지구물리탐사방법이 사용되고 있고, 정확도를 개선하기 위해 다수의 연구가 진행되고 있다. 본 연구에서는 우주선 뮤온이라는 입자를 활용하여 새로운 개념의 탐사 방법을 통해 지하매설물 탐사 가능성을 분석하였다. 신틸레이터(scintillator)와 광증배관(silicon photomultiplier)을 조합하여 소형 뮤온 검출기 시작품을 제작하고, 뮤온 입자 계수에 대한 보정 작업을 수행하였다. 시작품을 활용하여 모형 토조의 지반두께를 측정하였으며, 실측값과 약 3%의 오차로 실측값에 가까운 값을 추정할 수 있었다. 또한 뮤온 검출기를 지하매설물 탐사용으로 활용하기 위해 토모그래피 해석기술에 대한 이론적 기반을 분석하고, 천정각(zenith angle) 보정 방법을 제시하였다. 연구 결과 뮤온 입자에 의한 탐사는 밀도 그 자체를 고해상도로 해석하는 것이 가능한 기술로써 지하매설물 탐사를 위해 활용 가능할 것으로 판단된다.

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Information

Publisher :The Korean Geotechnical Society
Publisher(Ko) :한국지반공학회
Journal Title :Journal of the Korean Geotechnical Society
Journal Title(Ko) :한국지반공학회 논문집
Volume : 38
No :11
Pages :137-147
Received Date : 2022-10-31
Revised Date : 2022-11-03
Accepted Date : 2022-11-03
DOI :https://doi.org/10.7843/kgs.2022.38.11.137

Journal of the Korean Geotechnical Society ISSN:1229-2427(Print) 2288-646X(Online) 한국지반공학회 논문집

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