A radiation standard for the vacuum ultraviolet

Morris, J.; Garrison, R. L.

doi:10.1016/0022-4073(69)90124-1

Cited by 9 publications

(2 citation statements)

References 4 publications

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“…As an example, the blackbody radiation limit was evidenced in the vacuum ultraviolet range for an argon arc [16]. The saturation of a helium resonance line at the blackbody radiance was observed in a shock-tube experiment [17].…”

Section: Introductionmentioning

confidence: 95%

Local thermodynamic equilibrium in a laser-induced plasma evidenced by blackbody radiation

Hermann

Grojo

Axente

et al. 2018

Spectrochimica Acta Part B: Atomic Spectroscopy

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We show that the plasma produced by laser ablation of solid materials in specific conditions has an emission spectrum that is characterized by the saturation of the most intense spectral lines at the blackbody radiance. The blackbody temperature equals the excitation temperature of atoms and ions, proving directly and unambiguously a plasma in local thermodynamic equilibrium. The present investigations take benefit from the very rich and intense emission spectrum generated by ablation of a nickel-chromium-molybdenum alloy. This alternative and direct proof of the plasma equilibrium state reopens the perspectives of quantitative material analyses via calibration-free laser-induced breakdown spectroscopy. Moreover, the unique properties of this laser-produced plasma promote its use as radiation standard for intensity calibration of spectroscopic instruments.

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Section: Introductionmentioning

confidence: 95%

Local thermodynamic equilibrium in a laser-induced plasma evidenced by blackbody radiation

Hermann

Grojo

Axente

et al. 2018

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…Since the short wavelength cutoff of magnesium fluoride windows which are used in many VUV instruments is at about I 15 nm, it would be convenient to have a primary standard which covers the range 115 to 124 nm. This need has been met with the development of the blackbody line arc [11][12][13]. Blackbody radiances for a number of prominent ultraviolet spectral lines are determined in the following manner.…”

Section: Blackbody Line Arcmentioning

confidence: 99%

Radiometric calibrations of portable sources in the vacuum ultraviolet

Klose

Bridges²,

Ott³

1988

J. RES. NATL. BUR. STAN.

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The radiometric calibration program carried out by the vacuum ultraviolet radiometry group in the Atomic and Plasma Radiation Division of the National Bureau of Standards is presented in brief. Descriptions are given of the primary standards, which are the hydrogen arc and the blackbody line arc, and the secondary standards, which are the argon mini- and maxi-arcs and the deuterium arc lamp. The calibration methods involving both spectral radiance and irradiance are then discussed along with their uncertainties. Finally, the calibration services are delineated in an appendix .

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