Detection of beryllium treatment of natural sapphires by NRA

Gutiérrez, P.C.; Ynsa, M.D.; Climent‐Font, A.; Calligaro, Thomas

doi:10.1016/j.nimb.2010.02.053

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…So, it is indispensable for knowledge of its service performance under various space-radiation environments [8,9]. Radiation and spectral characteristics of sapphire produced by various methods have been studied [10][11][12]. Electron paramagnetic resonance (EPR) spectroscopy has also been employed to study the irradiation effect [13][14][15][16][17], which is more sensitive to paramagnetic defects, such as exchange-coupled ion pairs and unpaired electron in sapphire.…”

Section: Introductionmentioning

confidence: 99%

Electron paramagnetic resonance in gamma-ray, electron and neutron flux irradiated sapphire

Zhang

et al. 2012

Nuclear Instruments and Methods in Physics Research Section B:

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Section: Introductionmentioning

confidence: 99%

Electron paramagnetic resonance in gamma-ray, electron and neutron flux irradiated sapphire

Zhang

et al. 2012

Nuclear Instruments and Methods in Physics Research Section B:

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“…NRA based on the 9 Be(α,nγ) 12 C reaction has been successfully applied by Gutiérrez et al . () to analyse Be‐treated gemstones (detected: 5–16 μg g −1 ; detection limit: 1 μg g −1 ). Thus, they have clearly demonstrated the advantage of the non‐destructiveness of NRA over competing analytical methods such as LA‐ICP‐MS or laser‐induced breakdown spectroscopy (LIBS), when testing for the artificial treatment of natural sapphires by diffusion of Be.…”

Section: Advances In Accelerator‐based Methods (Contribution By R Bumentioning

confidence: 99%

GGR Biennial Critical Review: Analytical Developments Since 2010

Wiedenbeck

Bugoi

Duke

et al. 2012

Geostandard Geoanalytic Res

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Advances in the chemical and isotopic characterisation of geological and environmental materials can often be ascribed to technological improvements in analytical hardware. Equally, the creation of novel methods of data acquisition and interpretation, including access to better reference materials, can also be crucial components enabling important breakthroughs. This biennial review highlights key advances in either instrumentation or data acquisition and treatment, which have appeared since January 2010. This review is based on the assessments by scientists prominent in each of the given analytical fields; it is not intended as an exhaustive summary, but rather provides insight from experts of the most significant advances and trends in their given field of expertise. In contrast to earlier reviews, this presentation has been formulated into a unified work, providing a single source covering a broad spectrum of geoanalytical techniques. Additionally, some themes that were not previously emphasised, in particular thermal ionisation mass spectrometry, accelerator‐based methods and vibrational spectroscopy, are also presented in detail.

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“…Thanks to the sensitivity of PIXE, trace elements such as Fe and Zn were also identified, although this fact is probably related to inclusions of dust, not uniformly distributed over the porous surface or to modern cleaning products. Besides these studies of important collections, other experimental works dealing with pieces of glass [73], minerals [74], and alloys from di↵erent archaeological sites [75][76][77][78] were also carried out at CMAM.…”

Section: Internal and External Microbeamsmentioning

confidence: 99%

Current status and future developments of the ion beam facility at the centre of micro-analysis of materials in Madrid

et al. 2021

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We report on the current status of the ion beam laboratory of the Centre of Micro-Analysis of Materials at the Autonomous University of Madrid. The 5 MV accelerator facility provides MeV ion beams of any stable element. Six main beam lines are under operation, allowing the analysis and modification of materials through ion beam methods. Although the most demanded ions are H and He for standard Rutherford backscattering spectrometry and particle-induced X-ray emission experiments, many other analytical techniques and specific set-ups are available for users. The facility especially highlights for the use of high-energy heavy ions and microbeams, with important applications in material science, optics and electronics, biology, cultural heritage, and astrophysics. Ongoing upgrades of the facility are oriented to improve the quality of the service for external users and to face new scientific and technological challenges in areas such as advanced materials, space, energy and health. PACS. 29.17.+w Electrostatic, collective, and linear accelerators -79.20.Rf Atomic, molecular, and ion beam impact and interactions with surfaces -81.70.-q Methods of materials testing and analysis -81.20.-n Methods of materials synthesis and materials processing

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Detection of beryllium treatment of natural sapphires by NRA

Cited by 5 publications

References 14 publications

Electron paramagnetic resonance in gamma-ray, electron and neutron flux irradiated sapphire

Electron paramagnetic resonance in gamma-ray, electron and neutron flux irradiated sapphire

GGR Biennial Critical Review: Analytical Developments Since 2010

Current status and future developments of the ion beam facility at the centre of micro-analysis of materials in Madrid

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