Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Radioactive Decay and Radiometric Dating02:48

Radioactive Decay and Radiometric Dating

Radioactivity is a spontaneous disintegration of an unstable nuclide and is a random process, as all the nuclei in the sample do not decay simultaneously. The number of disintegrations per unit time is called the activity (A), which is directly proportional to the number of nuclei in the sample. The decay constant (λ) is an average probability of decay per nucleus in unit time.
Mass Analyzers: Common Types01:19

Mass Analyzers: Common Types

The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
Van de Graaff Generator01:15

Van de Graaff Generator

Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
Electron Behavior00:54

Electron Behavior

Electrons are negatively charged subatomic particles that are attracted to an orbit around the positively-charged nucleus of an atom. They reside in locations that are associated with energy levels called shells and are further organized into sub-shells and orbitals within each shell.Electrons Orbit the NucleusElectrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the nucleus...
Electron Behavior01:09

Electron Behavior

Electrons are negatively charged subatomic particles attracted to and orbit around the positively-charged nucleus of an atom. They reside in spaces associated with energy levels called shells and are further organized into subshells and orbitals within each shell.
Electrons Orbit the Nucleus
Electrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the nucleus have less energy,...
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Erratum: Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions at sqrt[s_{NN}]=200  GeV [Phys. Rev. Lett. 116, 122301 (2016)].

Physical review letters·2025
Same author

Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at sqrt[s]=510  GeV in p[over →]+p[over →] Collisions.

Physical review letters·2023
Same author

Intercellular transmission of pathogenic proteins in ALS: Exploring the pathogenic wave.

Neurobiology of disease·2023
Same author

Chronic BMAA exposure combined with TDP-43 mutation elicits motor neuron dysfunction phenotypes in mice.

Neurobiology of aging·2023
Same author

Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC.

The European physical journal. C, Particles and fields·2022
Same author

Prospects for beyond the Standard Model physics searches at the Deep Underground Neutrino Experiment: DUNE Collaboration.

The European physical journal. C, Particles and fields·2021

Video Experimental Relacionado

Updated: Jul 11, 2026

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

Published on: May 3, 2019

Datamiento por radiocarbono con aceleradores electrostáticos: los iones negativos proporcionan la clave.

C L Bennett, R P Beukens, M R Clover

    Science (New York, N.Y.)
    |November 4, 1977
    PubMed
    Resumen

    La espectrometría de masas ahora puede medir las relaciones de datación del carbono-14 (14C) con mayor precisión. El uso de iones negativos y un acelerador en tándem elimina la interferencia del nitrógeno-14 (14N), lo que permite una detección precisa del 14C.

    Más Videos Relacionados

    Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−
    06:53

    Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

    Published on: July 27, 2018

    Videos de Experimentos Relacionados

    Last Updated: Jul 11, 2026

    Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
    10:42

    Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

    Published on: May 3, 2019

    Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−
    06:53

    Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

    Published on: July 27, 2018

    Área de la Ciencia:

    • Geocronología Geocronología.
    • Química Analítica La Química Analítica es la
    • Física Física es la física de las cosas.

    Sus antecedentes:

    • La espectrometría de masas es un método propuesto para determinar las proporciones de carbono-14 (14C) a carbono-12 (12C) para la datación por radiocarbono.
    • Un desafío importante en este método es diferenciar entre nitrógeno-14 (14N) y 14C.

    Objetivo del estudio:

    • Para superar el desafío de distinguir entre 14N y 14C en las mediciones espectrométricas de masas para la datación por radiocarbono.
    • Para demostrar la efectividad del uso de iones negativos y un acelerador electrostático en tándem para mediciones precisas de la relación 14C/12C.

    Principales métodos:

    • Utilizando iones negativos en una configuración de espectrometría de masas.
    • Empleando un acelerador electrostático en tándem para mejorar la manipulación y detección de iones.
    • Medición de las relaciones 14C/12C con alta precisión.

    Principales resultados:

    • El uso de iones negativos elimina efectivamente el fondo de 14N.
    • El acelerador electrostático en tándem facilita la detección de concentraciones mínimas de 14C.
    • Se midieron fácilmente menos de tres átomos de 14C por cada 1016 átomos de 12C, lo que indica una alta sensibilidad y precisión.

    Conclusiones:

    • El método espectrométrico de masas desarrollado, utilizando iones negativos y un acelerador electrostático en tándem, distingue con éxito el 14C del 14N.
    • Esta técnica mejora significativamente la precisión y sensibilidad de la datación por radiocarbono al permitir la medición precisa de las relaciones 14C/12C.