The effect of rock composition on muon tomography measurements

Alessandro Lechmann, David Mair, Akitaka Ariga, Tomoko Ariga, Antonio Ereditato, Ryuichi Nishiyama, Ciro Pistillo, Paola Scampoli, Fritz Schlunegger, Mykhailo Vladymyrov

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In recent years, the use of radiographic inspection with cosmic-ray muons has spread into multiple research and industrial fields. This technique is based on the high-penetration power of cosmogenic muons. Specifically, it allows the resolution of internal density structures of large-scale geological objects through precise measurements of the muon absorption rate. So far, in many previous works, this muon absorption rate has been considered to depend solely on the density of traversed material (under the assumption of a standard rock) but the variation in chemical composition has not been taken seriously into account. However, from our experience with muon tomography in Alpine environments, we find that this assumption causes a substantial bias in the muon flux calculation, particularly where the target consists of high {Z2/A} rocks (like basalts and limestones) and where the material thickness exceeds 300m. In this paper, we derive an energy loss equation for different minerals and we additionally derive a related equation for mineral assemblages that can be used for any rock type on which mineralogical data are available. Thus, for muon tomography experiments in which high {Z2/A} rock thicknesses can be expected, it is advisable to plan an accompanying geological field campaign to determine a realistic rock model..

Original languageEnglish
Pages (from-to)1517-1533
Number of pages17
JournalSolid Earth
Volume9
Issue number6
DOIs
Publication statusPublished - Dec 21 2018

Fingerprint

tomography
Tomography
muons
rocks
Rocks
Chemical analysis
rock
Minerals
minerals
alpine environment
basalt
Cosmic rays
Calcium Carbonate
mineral
limestone
cosmic ray
Energy dissipation
penetration
Inspection
chemical composition

All Science Journal Classification (ASJC) codes

  • Soil Science
  • Geophysics
  • Geology
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Stratigraphy
  • Palaeontology

Cite this

Lechmann, A., Mair, D., Ariga, A., Ariga, T., Ereditato, A., Nishiyama, R., ... Vladymyrov, M. (2018). The effect of rock composition on muon tomography measurements. Solid Earth, 9(6), 1517-1533. https://doi.org/10.5194/se-9-1517-2018

The effect of rock composition on muon tomography measurements. / Lechmann, Alessandro; Mair, David; Ariga, Akitaka; Ariga, Tomoko; Ereditato, Antonio; Nishiyama, Ryuichi; Pistillo, Ciro; Scampoli, Paola; Schlunegger, Fritz; Vladymyrov, Mykhailo.

In: Solid Earth, Vol. 9, No. 6, 21.12.2018, p. 1517-1533.

Research output: Contribution to journalArticle

Lechmann, A, Mair, D, Ariga, A, Ariga, T, Ereditato, A, Nishiyama, R, Pistillo, C, Scampoli, P, Schlunegger, F & Vladymyrov, M 2018, 'The effect of rock composition on muon tomography measurements', Solid Earth, vol. 9, no. 6, pp. 1517-1533. https://doi.org/10.5194/se-9-1517-2018
Lechmann A, Mair D, Ariga A, Ariga T, Ereditato A, Nishiyama R et al. The effect of rock composition on muon tomography measurements. Solid Earth. 2018 Dec 21;9(6):1517-1533. https://doi.org/10.5194/se-9-1517-2018
Lechmann, Alessandro ; Mair, David ; Ariga, Akitaka ; Ariga, Tomoko ; Ereditato, Antonio ; Nishiyama, Ryuichi ; Pistillo, Ciro ; Scampoli, Paola ; Schlunegger, Fritz ; Vladymyrov, Mykhailo. / The effect of rock composition on muon tomography measurements. In: Solid Earth. 2018 ; Vol. 9, No. 6. pp. 1517-1533.
@article{39dfc1cd1ef54f5e8037ee313d5bbafe,
title = "The effect of rock composition on muon tomography measurements",
abstract = "In recent years, the use of radiographic inspection with cosmic-ray muons has spread into multiple research and industrial fields. This technique is based on the high-penetration power of cosmogenic muons. Specifically, it allows the resolution of internal density structures of large-scale geological objects through precise measurements of the muon absorption rate. So far, in many previous works, this muon absorption rate has been considered to depend solely on the density of traversed material (under the assumption of a standard rock) but the variation in chemical composition has not been taken seriously into account. However, from our experience with muon tomography in Alpine environments, we find that this assumption causes a substantial bias in the muon flux calculation, particularly where the target consists of high {Z2/A} rocks (like basalts and limestones) and where the material thickness exceeds 300m. In this paper, we derive an energy loss equation for different minerals and we additionally derive a related equation for mineral assemblages that can be used for any rock type on which mineralogical data are available. Thus, for muon tomography experiments in which high {Z2/A} rock thicknesses can be expected, it is advisable to plan an accompanying geological field campaign to determine a realistic rock model..",
author = "Alessandro Lechmann and David Mair and Akitaka Ariga and Tomoko Ariga and Antonio Ereditato and Ryuichi Nishiyama and Ciro Pistillo and Paola Scampoli and Fritz Schlunegger and Mykhailo Vladymyrov",
year = "2018",
month = "12",
day = "21",
doi = "10.5194/se-9-1517-2018",
language = "English",
volume = "9",
pages = "1517--1533",
journal = "Solid Earth",
issn = "1869-9510",
publisher = "Copernicus Gesellschaft mbH",
number = "6",

}

TY - JOUR

T1 - The effect of rock composition on muon tomography measurements

AU - Lechmann, Alessandro

AU - Mair, David

AU - Ariga, Akitaka

AU - Ariga, Tomoko

AU - Ereditato, Antonio

AU - Nishiyama, Ryuichi

AU - Pistillo, Ciro

AU - Scampoli, Paola

AU - Schlunegger, Fritz

AU - Vladymyrov, Mykhailo

PY - 2018/12/21

Y1 - 2018/12/21

N2 - In recent years, the use of radiographic inspection with cosmic-ray muons has spread into multiple research and industrial fields. This technique is based on the high-penetration power of cosmogenic muons. Specifically, it allows the resolution of internal density structures of large-scale geological objects through precise measurements of the muon absorption rate. So far, in many previous works, this muon absorption rate has been considered to depend solely on the density of traversed material (under the assumption of a standard rock) but the variation in chemical composition has not been taken seriously into account. However, from our experience with muon tomography in Alpine environments, we find that this assumption causes a substantial bias in the muon flux calculation, particularly where the target consists of high {Z2/A} rocks (like basalts and limestones) and where the material thickness exceeds 300m. In this paper, we derive an energy loss equation for different minerals and we additionally derive a related equation for mineral assemblages that can be used for any rock type on which mineralogical data are available. Thus, for muon tomography experiments in which high {Z2/A} rock thicknesses can be expected, it is advisable to plan an accompanying geological field campaign to determine a realistic rock model..

AB - In recent years, the use of radiographic inspection with cosmic-ray muons has spread into multiple research and industrial fields. This technique is based on the high-penetration power of cosmogenic muons. Specifically, it allows the resolution of internal density structures of large-scale geological objects through precise measurements of the muon absorption rate. So far, in many previous works, this muon absorption rate has been considered to depend solely on the density of traversed material (under the assumption of a standard rock) but the variation in chemical composition has not been taken seriously into account. However, from our experience with muon tomography in Alpine environments, we find that this assumption causes a substantial bias in the muon flux calculation, particularly where the target consists of high {Z2/A} rocks (like basalts and limestones) and where the material thickness exceeds 300m. In this paper, we derive an energy loss equation for different minerals and we additionally derive a related equation for mineral assemblages that can be used for any rock type on which mineralogical data are available. Thus, for muon tomography experiments in which high {Z2/A} rock thicknesses can be expected, it is advisable to plan an accompanying geological field campaign to determine a realistic rock model..

UR - http://www.scopus.com/inward/record.url?scp=85059451888&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85059451888&partnerID=8YFLogxK

U2 - 10.5194/se-9-1517-2018

DO - 10.5194/se-9-1517-2018

M3 - Article

VL - 9

SP - 1517

EP - 1533

JO - Solid Earth

JF - Solid Earth

SN - 1869-9510

IS - 6

ER -