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NEUTRON SPECTROSCOPY [2 records]

Record 1 2009-10-26

English

Subject field(s)
  • Nuclear Physics
CONT

The neutron resonance absorption spectroscopy(N-RAS) is a method to study the dynamics of nuclides by analyzing the Doppler broadening of their resonance spectra.

French

Domaine(s)
  • Physique nucléaire
CONT

L'extrême complexité des courbes de sections efficaces des noyaux lourds, notamment l'uranium 238, dans le domaine du ralentissement des neutrons rend le problème du calcul de l'absorption résonnante des neutrons particulièrement ardu.

Spanish

Save record 1

Record 2 1989-03-31

English

Subject field(s)
  • Environmental Studies and Analyses
  • Air Pollution
CONT

Filter Sampling. Particulates are extremely varied for their composition. The monitoring of particulates with High Volume(Hi-Vol) samplers and other filter media varies from a simple colorimetric measure of the coefficient of haze(CoH) to the use of neutron activation analysis, atomic absorption spectroscopy, etc. for metal concentrations and gas chromatography for organic composition. Heavy metal measurements for lead, cadmium, chromium, vanadium, and nickel are common in urban areas such as with the National Air Pollution Surveillance Network(NAPS).

French

Domaine(s)
  • Études et analyses environnementales
  • Pollution de l'air

Spanish

Save record 2

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