UV and VUV calibration capabilities at the Metrology Light Source for solar and atmospheric research

Klein, R.; Gottwald, Alexander; Kolbe, Michael; Richter, M.; Scholze, Frank; Thornagel, R.; Ulm, G.

doi:10.1063/1.4804911

Cited by 6 publications

(6 citation statements)

References 13 publications

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“…The direct, undispersed and calculable radiation of a MLS bending magnet is used at a so-called white-light beamline [18] for the direct calibration of energy-dispersive detectors or wavelength-dispersive or selective spectrometers [30] or for calibration of the source calibration transfer device. This transfer device consists of a mirror-monochromator-detector system that can be moved so as to be illuminated either by the calculable radiation of the MLS or by the source to be calibrated (figure 1(a)).…”

Section: Set-up and Calibration Principlementioning

confidence: 99%

“…The newly set-up facility at the MLS for the calibration of radiation sources covers the spectral range from 7 nm to 400 nm [18,19].…”

Section: Introductionmentioning

confidence: 99%

“…Source-based calibrations in the short wavelength range below 120 nm are mainly performed within scientific co-operations, focusing on the calibration of space instruments [12,18] and related transfer sources. Prominent examples of such calibrations are the calibration of transfer source standards for the calibration of the CDS (Coronal Diagnostics Spectrometer) [20] and SUMER (Solar Ultraviolet Measurements of Emitted Radiation) [21] telescopes on board the of Solar and Heliospheric Observatory (SOHO) mission.…”

Section: Introductionmentioning

confidence: 99%

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Validation of a new facility at the Metrology Light Source for the calibration of radiation sources in the wavelength range from 116 nm to 400 nm

et al. 2014

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The radiant intensity of synchrotron radiation can be accurately calculated within classical electrodynamics. Based on this primary realization of the spectral radiant intensity, a dedicated facility for the calibration of radiation sources has recently been put into operation at the Metrology Light Source (MLS), the electron storage ring of the Physikalisch-Technische Bundesanstalt which is optimized for use as a primary radiation source standard. This facility enables PTB to calibrate a radiation source either in terms of spectral radiant intensity or spectral radiance in the spectral region from 7 nm to 400 nm by direct comparison with the primary source standard MLS. In this paper, we focus on the internal validation of the facility in the spectral range from 116 nm to 400 nm by means of deuterium lamps and a tungsten ribbon lamp as transfer standards, which have been traceably calibrated at the BESSY II electron storage ring and also—in the case of the tungsten ribbon lamp—to a blackbody radiator as primary standards.

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Section: Set-up and Calibration Principlementioning

confidence: 99%

“…The newly set-up facility at the MLS for the calibration of radiation sources covers the spectral range from 7 nm to 400 nm [18,19].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Validation of a new facility at the Metrology Light Source for the calibration of radiation sources in the wavelength range from 116 nm to 400 nm

et al. 2014

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“…The direct, undispersed, and calculable radiation of a MLS bending magnet is used at a so-called white-light beamline 23 for the calibration of the source calibration transfer device. This transfer device consists of a mirror-monochromatordetector system that can be moved so as to be illuminated either by the calculable radiation of the MLS or by the source to be calibrated (Fig.…”

Section: Principle Of Setupmentioning

confidence: 99%

A new facility for the synchrotron radiation-based calibration of transfer radiation sources in the ultraviolet and vacuum ultraviolet spectral range

Thornagel

Fliegauf

Klein

et al. 2015

Review of Scientific Instruments

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The Physikalisch-Technische Bundesanstalt (PTB) has a long tradition in the calibration of radiation sources in the ultraviolet and vacuum ultraviolet spectral range, with traceability to calculable synchrotron radiation. Within this context, new instrumentation in the PTB laboratory at the Metrology Light Source (MLS) has been put into operation that opens up extended and improved calibration possibilities. A new facility for radiation source calibrations has been set up in the spectral range from 7 nm to 400 nm based on a combined normal incidence-grazing incidence monochromator. The facility can be used for the calibration of transfer sources in terms of spectral radiant intensity or mean spectral radiance, with traceability to the MLS primary source standard. We describe the design and performance of the experimental station and give examples of some commissioning results.

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“…collaborations, focusing on the calibration of space instruments [12,[20][21][22] and related transfer sources. In this paper, we focus on the spectral region from 116 nm to 400 nm, which is of scientific and also of industrial and commercial interest.…”

Section: Ptb's Radiometric Scales For Uv and Vuv Source Calibration B...mentioning

confidence: 99%

PTB’s radiometric scales for UV and VUV source calibration based on synchrotron radiation

Klein¹,

Kroth²,

Paustian³

et al. 2018

Metrologia

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The radiant intensity of synchrotron radiation can be accurately calculated with classical electrodynamics. This primary realization of the spectral radiant intensity has been used by PTB at several electron storage rings which have been optimized to be operated as primary source standards for the calibration of transfer sources in the spectral range of UV and VUV for almost 30 years. The transfer sources are compared to the primary source standard by means of suitable wavelength-dispersive transfer stations.The spectral range covered by deuterium lamps, which represent transfer sources that are easy to handle, is of particular relevance in practice. Here, we report on developments in the realization and preservation of the radiometric scales for spectral radiant intensity and spectral radiance in the wavelength region from 116 nm to 400 nm, based on a set of deuterium reference lamps, over the last few decades. An inside view and recommendations on the operation of the D2 lamps used for the realization of the radiometric scale are presented. The data has been recently compiled to illustrate the chronological behaviour at various wavelengths. Moreover, an overview of the internal and external validation measurements and intercomparisons is given.

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UV and VUV calibration capabilities at the Metrology Light Source for solar and atmospheric research

Cited by 6 publications

References 13 publications

Validation of a new facility at the Metrology Light Source for the calibration of radiation sources in the wavelength range from 116 nm to 400 nm

Validation of a new facility at the Metrology Light Source for the calibration of radiation sources in the wavelength range from 116 nm to 400 nm

A new facility for the synchrotron radiation-based calibration of transfer radiation sources in the ultraviolet and vacuum ultraviolet spectral range

PTB’s radiometric scales for UV and VUV source calibration based on synchrotron radiation

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