neutron capture

neutron capture

      type of nuclear reaction in which a target nucleus absorbs a neutron (uncharged particle), then emits a discrete quantity of electromagnetic energy (gamma-ray photon). The target nucleus and the product nucleus are isotopes, or forms of the same element. Thus phosphorus-31, on undergoing neutron capture, becomes phosphorus-32. The heavier isotope that results may be radioactive, so that neutron capture, which occurs with almost any nucleus, is a common way of producing radioactive isotopes.

      Neutron capture is also named neutron-gamma, or (η,γ), reaction from the bombarding particle (η for neutron) and the emitted particle (γ for gamma-ray photon) and sometimes called neutron radiative capture because of the prompt emission of only electromagnetic radiation. Among the natural elements, boron, cadmium, and gadolinium are the best absorbers of slow neutrons by the capture process.

* * *


Universalium. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • neutron capture — neutron capture, the capture of a neutron by the nucleus of an atom …   Useful english dictionary

  • Neutron capture — Science with Neutrons Foundations Neutron temperature Flux · Radiation  …   Wikipedia

  • neutron capture — neutrono pagavimas statusas T sritis fizika atitikmenys: angl. neutron capture vok. Neutroneneinfang, m rus. захват нейтрона, m pranc. capture de neutron, f …   Fizikos terminų žodynas

  • Neutron Capture Therapy of Cancer — Neutron Capture Therapy (NCT) is a noninvasive therapeutic modality for treating locally invasive malignant tumors such as primary brain tumors and recurrent head and neck cancer. It is a two step procedure: first, the patient is injected with a… …   Wikipedia

  • Neutron capture nucleosynthesis — describes two nucleosynthesis pathways: the r process and the s process, for rapid and slow neutron captures, respectively. R process describes neutron capture in a region of high neutron flux, such as during supernova nucleosynthesis after core… …   Wikipedia

  • Neutron Capture Therapy — Neutron Capture Therapy, NCT, Нейтронзахватная терапия, Терапия нейтронного захвата. Метод лечения рака с использованием реакций, возникающих между радиочувствительными медикаментами и нейтронами. В опухоль поступают медикаменты содержищие бор,… …   Википедия

  • neutron capture cross-section — neutrono pagavimo skerspjūvis statusas T sritis fizika atitikmenys: angl. neutron capture cross section vok. Neutroneneinfangquerschnitt, m; Neutroneneinfangwirkungsquerschnitt, m rus. сечение захвата нейтрона, n pranc. section efficace de… …   Fizikos terminų žodynas

  • neutron capture probability — neutronų pagavimo tikimybė statusas T sritis fizika atitikmenys: angl. neutron capture probability vok. Neutroneneinfangwahrscheinlichkeit, f rus. вероятность захвата нейтронов, f pranc. probabilité de capture des neutrons, f; probabilité de… …   Fizikos terminų žodynas

  • neutron-capture reaction — neutrono pagavimo reakcija statusas T sritis fizika atitikmenys: angl. neutron capture reaction vok. Neutroneneinfangreaktion, f rus. реакция захвата нейтрона, f pranc. réaction de capture neutronique, f …   Fizikos terminų žodynas

  • Boron neutron capture therapy — Intervention A schematic of therapy facility in Otaniemi, Finland. ICD 10 PCS D?0?6ZZ …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”