Quantitative analysis of Li by PIGE technique

Fonseca, M.; Mateus, R.; Santos, C.; Cruz, J.; Silva, H.; Luís, H.; Martins, Luís; Jesus, A.P.

doi:10.1016/j.nimb.2017.03.035

Cited by 8 publications

(4 citation statements)

References 13 publications

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“…Cross sections for the nuclear reaction 7 Li(p,p’γ) 7 Li (Eγ = 478 keV) in the proton energy range between 2.0 and 4.2 MeV were also investigated for improved Li quantification in ‘thick’ samples by PIGE (Fonseca et al . ). Experimental γ‐ray yields for Li inorganic (muscovite and holmquistite) and organic compounds were measured and compared with calculated yields.…”

Section: Advances In Accelerator‐based Methodsmentioning

confidence: 97%

“…The best detection limit for Li (0.8 lg g -1 ) was achieved using the 7 Li(p,a) 4 He nuclear reaction using a proton energy of 635 keV, detecting both a particles in coincidence for a high signal-to-noise ratio and taking advantage of recent improvements such as the double-sided silicon strip detector, already reported in Wiedenbeck et al (2014). Cross sections for the nuclear reaction 7 Li(p,p'c) 7 Li (Ec = 478 keV) in the proton energy range between 2.0 and 4.2 MeV were also investigated for improved Li quantification in 'thick' samples by PIGE (Fonseca et al 2017). Experimental c-ray yields for Li inorganic (muscovite and holmquistite) and organic compounds were measured and compared with calculated yields.…”

Section: Examples Demonstrating the Capabilities Of Iba Techniques Inmentioning

confidence: 99%

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GGR Biennial Critical Review: Analytical Developments Since 2014

Linge

Bèdard

Bugoi

et al. 2017

Geostandard Geoanalytic Res

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This GGR biennial critical review covers developments and innovations in key analytical methods published since January 2014, relevant to the chemical, isotopic and crystallographic characterisation of geological and environmental materials. In nine selected analytical fields, publications considered to be of wide significance are summarised, background information is provided and their importance evaluated. In addition to instrumental technologies, this review also presents a summary of new developments in the preparation and characterisation of rock, microanalytical and isotopic reference materials, including a précis of recent changes and revisions to ISO guidelines for reference material characterisation and reporting. Selected reports are provided of isotope ratio analyses by both solution-nebulisation MC-ICP-MS and laser ablation-ICP-MS, as well as of radioactive isotope geochronology by LA-ICP-MS. Most of the analytical techniques elaborated continue to provide new applications for geochemical analysis, however it is noted that instrumental neutron activation analysis has become less popular in recent years, mostly due to the reduced availability of nuclear reactors to act as a neutron source. Many of the newer applications reported here provide analysis at increasingly finer resolution. Examples include atom probe tomography, a very sensitive method providing atomic scale information, nanoscale SIMS, for isotopic imaging of geological and biological samples, and micro-XRF, which has a spatial resolution many orders of magnitude smaller than conventional XRF

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Section: Advances In Accelerator‐based Methodsmentioning

confidence: 97%

Section: Examples Demonstrating the Capabilities Of Iba Techniques Inmentioning

confidence: 99%

GGR Biennial Critical Review: Analytical Developments Since 2014

Linge

Bèdard

Bugoi

et al. 2017

Geostandard Geoanalytic Res

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“…Los principales factores que influyen en una identificación elemental son: la intensidad de la energía del haz, la sección transversal de la reacción nuclear, la energía de Coloumb, el número y la distribución de átomos en la muestra, además del tiempo de exposición de la misma (Mateus, 2017).…”

Section: Conclusionesunclassified

Análisis De Reacción Nuclear (Nra) Y Emisión De Rayos Γ Inducidos Por Partículas (Pige)

Gaspar

2020

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En este artículo de revisión se da a conocer el funcionamiento de dos técnicas nucleares modernas: el análisis de reacción nuclear (NRA) y la emisión de rayos γ inducidos por partículas (PIGE) que han surgido a partir de la necesidad de analizar elementos livianos. También se mencionan ventajas como la alta sensibilidad y desventajas como la dificultad de interpretar sus espectros. Además, se revisan aplicaciones en donde varios autores han desarrollado trabajos de investigación y se da un resumen sobre lo que se espera de la técnica dentro de los próximos años.

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“…As most of the excitation functions of the pertinent gamma-producing nuclear reactions do not depend smoothly on proton energy, but exhibit narrow and large resonances, till recently most of the PIGE analytical work was done with resource to standards. This method may lead to large uncertainties if the standard is not similar to the sample to be analysed [1,2,3,4]. Since the last few years an effort has been made to develop a standard free method based on calculating codes as ERYA [5,6] which integrate the excitation functions in order to obtain the corresponding gamma-ray yields.…”

Section: Introductionmentioning

confidence: 99%

Measurement of gamma-ray production cross sections for nuclear reaction 31P(p,pγ1-0)31P

Silva

Santos

Fonseca

et al. 2019

Nuclear Instruments and Methods in Physics Research Section B:

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In order to implement a standard free PIGE analysis of phosphorus, the cross section of the reaction 31P(p,pγ1-0)31P, γ_(1-0)=1266.1 keV was measured for the proton energy range 2-4 MeV, with energy steps ranging from 1 keV on resonances to 10 keV off resonance. This data provides additional information in relation to previous work on this reaction, as a more detailed and extended (in energy) measurement was made. The results obtained in this work were compared within the common energy range with previous measurements. There is a fair agreement within the quoted uncertainties although a larger energy step was used by the other authors and some resonances were missed. Also, a validation was accomplished by introducing the measured excitation function in the ERYA code to calculate thick target phosphorus yields of Ca3(PO4)2, and comparing the calculated values with the corresponding measured yields and also with other thick target yields found in the literature. A good agreement was found. We are grateful to the reviewer for his minor comments to the manuscript. Please see below our response. 1) New references [20,21] were introduced to give a proper reference for the resonances used by the authors to calibrate the accelerator. 2) Antilla-Anttila: corrected. 3) The correction "Handbook of Ion Beam Analysis" to "Handbook of Modern Ion Beam Materials Analysis" was made. Reference number was updated to number 22 due to the introduction of a new reference before (see point 1).

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Quantitative analysis of Li by PIGE technique

Cited by 8 publications

References 13 publications

GGR Biennial Critical Review: Analytical Developments Since 2014

GGR Biennial Critical Review: Analytical Developments Since 2014

Análisis De Reacción Nuclear (Nra) Y Emisión De Rayos Γ Inducidos Por Partículas (Pige)

Measurement of gamma-ray production cross sections for nuclear reaction 31P(p,pγ1-0)31P

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