Negative muon induced elemental analysis by muonic X-ray and prompt gamma-ray measurements

Ninomiya, Kazuhiko; Inagaki, Michio; Kubo, M. Κ.; Nakamura, Takashi; Higemoto, Wataru; Kawamura, N.; Strasser, P.; Shimomura, K.; Miyake, Yasuhiro; Sakamoto, Shinichi; Shinohara, Atsushi; Saito, Tsutomu

doi:10.1007/s10967-016-4772-y

Cited by 7 publications

(7 citation statements)

References 22 publications

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“…The studies on the muon nuclear absorption processes and nuclear structures have employed gamma-ray measurements 45,46 . In addition to the elemental analysis 47 , isotopic analyses 48 have also been conducted by gamma-ray measurements, with the results being consistent with the values determined by other methods, including muonic X-ray measurements.…”

Section: Measurement Of Gamma Rays Emitted After Nuclear Capture Of Muonsupporting

confidence: 71%

Non-destructive, position-selective, and multi-elemental analysis method involving negative muons

Ninomiya

2019

J. Nucl. Radiochem. Sci.

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Elemental analysis is of fundamental importance in several scientific domains. Many elemental analysis methods have been developed till date, with particular importance having been given to non-destructive analysis methods. In this paper, we review a novel non-destructive, position-selective, and multi-elemental analysis method for bulk material that utilizes a new type of probe, a negative muon. When a muon is stopped by an atom in a material, muonic X-rays are emitted. Due to the large mass of a muon, the energy of muonic X-rays is very high, and the "X-ray fluorescence analysis" method using a muon can solve the problem of self-absorption in an ordinary method using an electron. Two studies involving quantitative and depth-profiling analysis of archeological artifacts by this method are reviewed in this work. We also discuss the scope for future research using this method.

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Section: Measurement Of Gamma Rays Emitted After Nuclear Capture Of Muonsupporting

confidence: 71%

Non-destructive, position-selective, and multi-elemental analysis method involving negative muons

Ninomiya

2019

J. Nucl. Radiochem. Sci.

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“…The selected incident energy of the accelerated muon determines the stopping depth in the substance whereby three-dimensional muonic X-ray analysis of the resulting light elements is possible [13,14]. Non-destructive elemental analysis using this method has already been demonstrated for serval valuable samples (e.g., Ninomiya et al and Hampshire et al used this method to determine the internal elemental distribution in archaeological artefacts [14][15][16][17], and Terada et al succeeded in quantifying carbon contents in carbonaceous meteorites [13,18,19]).…”

Section: Introductionmentioning

confidence: 99%

Development of non-destructive isotopic analysis methods using muon beams and their application to the analysis of lead

Ninomiya

Kudo

Strasser

et al. 2019

J Radioanal Nucl Chem

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Elemental isotopic ratios are measured in various research fields and provide useful information regarding age, origin, geological and biological activities, ancient climate, etc. Here, we report a new isotopic analysis method without sample destruction using muon-induced characteristic X-rays. We demonstrated this method by conducting muon-beam irradiation experiments on two Pb plates with different isotopic ratios: natural isotopic composition and artificially enriched 208 Pb. The observed broad X-ray peaks of the Pb K α line around 6 MeV were deconvolved with 206 Pb, 207 Pb, and 208 Pb isotopes, giving the isotopic ratios. The resulting isotopic ratios were consistent with those obtained from mass spectrometry.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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“…For antiproton affinities, a related topic is the capture probability of muons, since a muon has the same charge and comparable mass (about 9 times smaller) to an antiproton. In the muon studies carried out for a few selected molecules, the ionicity of the chemical bond between atoms, the atomic number, and the structure of the electronic orbits have been found to be key variables as verified by experimental data …”

Section: Introductionmentioning

confidence: 78%

Overview of antiproton affinities for functional groups relevant in particle‐beam cancer therapy

Stegeby

2018

Cancer Reports

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Background:The recent advances in the production and storing of antiprotons inspire further research regarding using an antiproton particle beam in cancer therapy.In this work, an overview study of the chemical properties that govern the reactions between biomolecules and slowly moving antiprotons have been investigated. Aim:The motivation for the article is to grant an improved understanding of the processes involved in antiproton particle-beam cancer therapy as the antiproton comes to rest, in terms of the impact of molecular chemical properties on the antiproton annihilation site of the biomolecule. Methods and results:The potential energy surfaces for an antiproton in the vicinity of common functional groups in the human body have been calculated at the CASSCF/CASPT2 level. The energies at different antiproton distances are calculated and compared between different functional groups.A comparison of the impact on the antiproton affinity from atomic number, bond order, number of lone pairs, bond polarization due to electronegativity, and charge is presented. Conclusion:The lone pair effect and bond polarization have a relatively large impact. This implies that even on the isolated molecular level, the chemical environment governing the trajectory of an antiproton is a complex problem. The study is applicable primarily in the ultra-low energy collision regime but can also function as a starting point for quantum dynamical treatments.

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Negative muon induced elemental analysis by muonic X-ray and prompt gamma-ray measurements

Cited by 7 publications

References 22 publications

Non-destructive, position-selective, and multi-elemental analysis method involving negative muons

Non-destructive, position-selective, and multi-elemental analysis method involving negative muons

Development of non-destructive isotopic analysis methods using muon beams and their application to the analysis of lead

Overview of antiproton affinities for functional groups relevant in particle‐beam cancer therapy

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