Development of Particle Induced Gamma-Ray Emission Methods for Nondestructive Determination of Isotopic Composition of Boron and Its Total Concentration in Natural and Enriched Samples

Chhillar, S.; Acharya, R.; Sodaye, S.; Pujari, P. K.

doi:10.1021/ac5024292

Cited by 42 publications

(18 citation statements)

References 41 publications

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“…[32][33][34][35] For a full explanation of the gamma spectrum obtained in the simulations for the B11 sample, the following series of nuclear reactions have been identified: 11 B (p,2n) 10 C, followed by a β+ decay of 10 C, thus populating the 10 B* exited state and finally emitting a gamma-ray at 718 keV. 36 It is worth mentioning that the cross-section of 11 B (p,2n) 10 C is negligible compared to 10 B (p,n) 10 C cross section for a proton energy of a few MeV.…”

Section: Resultsmentioning

confidence: 99%

Prompt gamma ray diagnostics and enhanced hadron-therapy using neutron-free nuclear reactions

et al. 2016

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We propose a series of simulations about the potential use of Boron isotopes to trigger neutron-free (aneutronic) nuclear reactions in cancer cells through the interaction with an incoming energetic proton beam, thus resulting in the emission of characteristic prompt gamma radiation (429 keV, 718 keV and 1435 keV). Furthermore assuming that the Boron isotopes are absorbed in cancer cells, the three alpha-particles produced in each p-11 B aneutronic nuclear fusion reactions can potentially result in the enhancement of the biological dose absorbed in the tumor region since these multi-MeV alpha-particles are stopped inside the single cancer cell, thus allowing to spare the surrounding tissues. Although a similar approach based on the use of 11 B nuclei has been proposed in [1], our work demonstrate, using Monte Carlo simulations, the crucial importance of the use of 10 B nuclei (in a solution containing also 11 B) for the generation of prompt gamma-rays, which can be applied to medical imaging. In fact, we demonstrate that the use of 10 B nuclei can enhance the intensity of the 718 keV gamma-ray peak more than 30 times compared to the solution containing only 11 B nuclei. A detailed explanation of the origin of the different prompt gamma-rays, as well as of their application as real-time diagnostics during a potential cancer treatment, is here discussed.

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Section: Resultsmentioning

confidence: 99%

Prompt gamma ray diagnostics and enhanced hadron-therapy using neutron-free nuclear reactions

et al. 2016

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“…In Chhillar et al . (), PIGE was used for simultaneous and non‐destructive determination of the 10 B/ 11 B atomic ratios between 0.247 and 2.0, and total B mass fractions between 5 and 78% m/m in various solid samples with both natural and 10 B‐enriched isotopic compositions.…”

Section: Advances In Accelerator‐based Methodsmentioning

confidence: 99%

“…Boron determination in geological samples by NRA does not suffer from matrix effects such as occurs, for example with SIMS, and was able to show clear zonation patterns within a 2D map of a synthetically produced crystal of olivine. In Chhillar et al (2014), PIGE was used for simultaneous and non-destructive determination of the 10 B/ 11 B atomic ratios between 0.247 and 2.0, and total B mass fractions between 5 and 78% m/m in various solid samples with both natural and 10 B-enriched isotopic compositions.…”

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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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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“…The subtechnique of NRA that specifically measures the generated gamma radiation is known as PIGE. [ 252 ] The nuclear reaction that probes Li with PIGE is

^{7} Li {(p, p' γ)}^{7} Li

. In practice, PIGE is often performed together with PIXE to obtain complementary profiles on other elements.…”

Section: Interface‐sensitive Techniquesmentioning

confidence: 99%

Interface Aspects in All‐Solid‐State Li‐Based Batteries Reviewed

Chen

Jiang

Zhou

et al. 2021

Advanced Energy Materials

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Extensive efforts have been made to improve the Li‐ionic conductivity of solid electrolytes (SE) for developing promising all‐solid‐state Li‐based batteries (ASSB). Recent studies suggest that minimizing the existing interface problems is even more important than maximizing the conductivity of SE. Interfaces are essential in ASSB, and their properties significantly influence the battery performance. Interface problems, arising from both physical and (electro)chemical material properties, can significantly inhibit the transport of electrons and Li‐ions in ASSB. Consequently, interface problems may result in interlayer formation, high impedances, immobilization of moveable Li‐ions, loss of active host sites available to accommodate Li‐ions, and Li‐dendrite formation, all causing significant storage capacity losses and ultimately battery failures. The characteristic differences of interfaces between liquid‐ and solid‐type Li‐based batteries are presented here. Interface types, interlayer origin, physical and chemical structures, properties, time evolution, complex interrelations between various factors, and promising interfacial tailoring approaches are reviewed. Furthermore, recent advances in the interface‐sensitive or depth‐resolved analytical tools that can provide mechanistic insights into the interlayer formation and strategies to tailor the interlayer formation, composition, and properties are discussed.

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Development of Particle Induced Gamma-Ray Emission Methods for Nondestructive Determination of Isotopic Composition of Boron and Its Total Concentration in Natural and Enriched Samples

Cited by 42 publications

References 41 publications

Prompt gamma ray diagnostics and enhanced hadron-therapy using neutron-free nuclear reactions

Prompt gamma ray diagnostics and enhanced hadron-therapy using neutron-free nuclear reactions

GGR Biennial Critical Review: Analytical Developments Since 2014

Interface Aspects in All‐Solid‐State Li‐Based Batteries Reviewed

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