The infrared line IR4 at the NSLS

Williams, Gwyn; Takacs, Peter Z.; Klaffky, R. W.; Shleifer, M.

doi:10.1016/0168-9002(86)90067-7

Cited by 30 publications

(10 citation statements)

References 2 publications

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“…often called the far-IR or THz range) and were carried out at Tantalus, Daresbury and Bessy I, starting in the 1970's [18]. The real boost in infrared activities at synchrotron facilities started shortly thereafter, at UVSOR [19], NSLS [20][21][22], and later LURE SuperACO [23]. All beamlines were designed with reasonably large apertures in order to efficiently extract the infrared photons.…”

Section: Flux Versus Brightnessmentioning

confidence: 99%

Challenges in Biology and Medicine with Synchrotron Infrared Light

2009

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The brightness (or brilliance) of synchrotron radiation was exploited in infrared microspectrosocopy. Among application of this synchrotron-based microanalytical technique, biological and biomedical investigations, at the diffraction-limited spot size, are exhibit of an increasing interest among almost all the existing infrared beamline worldwide. This paper is presenting the main properties of such a source, coupled with an infrared microscope. Several important applications in biomedical field are reported: cancer cells studies and drug effects, human substantia nigra in Parkinson's disease, β-amyloids deposits in Alzheimer's disease.

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Section: Flux Versus Brightnessmentioning

confidence: 99%

Challenges in Biology and Medicine with Synchrotron Infrared Light

2009

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“…The available maximum values of these parameters at the NSLS [3] are ex = 90 mrad, ez = 90 mrad, Ie = 750 mA. Substituting Ie = Neec/(2πR) and λ, = R/E3 in Eq.…”

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confidence: 99%

“…The results showed that in the spectral range λ > 100 pm the power ratio of the synchrotron radiation to the black body radiation is PsL/Pb.b. = 10 [3]. (893) In specialized storage systems the maximum power is peaked in the soft X-ray range and only a small part is in infrared range.…”

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confidence: 99%

“…It was proposed in Ref. [3] to measure A c with the help of the SR-spectrum slope in its short-wave region, where A « Ac. The slope magnitude is determined by the ratio of the SR power P(λ) at different wavelengths A l and λ2(λ1 > A2)…”

mentioning

confidence: 99%

“…For the NSLS storage ring one has R = 2.2 m and λ, = 59 A [3]. To estimate the radiation power in the far IR range one uses the following asymptotic formula…”

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Measurement of Infrared Transition Spectrum of Synchrotron Radiation Through Superconducting YBa₂Cu₃O_7-δFilm

1997

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This paper presents measurement results of the synchrotron radiation infrared transmission spectrum through YBCO film on MgO substrate at T = 20 K temperature. The film's transmission temperature of the superconducting state is Tc = 80 K. During formation cycle the maximum intensity wavelength varies from 100 µm to 10 µ.m. Due to spectrum evolution the detector signal that gives synchrotron radiation sample transmission is related to the sample transmission ability, the sensitivity of the detector and synchrotron radiation spectrum via an integral equation. The best agreement with experiment results is achieved for the E7 = 20 meV energy gap value, which corresponds to 2Eγ/kTc = 2.9 at T = 20 K.PACS numbers: 78.30.-j, 74.76.+w Middle and far range infrared (IR) spectroscopy have achieved good progress. There are used Fourier interferometers and black body radiation sources of T = 1000 -1500 K temperatures with p = 10 -8 W radiation power in the IWA = 0.1 region. A further increase in spectroscopic investigation efficiency depends on highly intensive radiation sources development in the λ. > 100 pm range.These sources can be cyclic electron accelerators (synchrotron radiation sources (SR) and variable magnetic structure sources (free electron lasers -FEL) [1].The difference between SR sources and a black body source in the far IR range is that the spectral density of the former decreases as A -1 while for the latter as A-3 [2].SR-source radiation flux was measured in the long wave region at the Brookhaven NSLS source [1]. The results showed that in the spectral range λ > 100 pm the power ratio of the synchrotron radiation to the black body radiation is PsL/Pb.b. = 10 [3].(893)

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Synchrotron and Free Electron Laser Sources of Infrared Radiation

Williams

2001

Handbook of Vibrational Spectroscopy

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In this article, we describe the infrared sources that are based on electron accelerators. Such sources have novel properties that allow them access to unique applications, which are complementary to those with laboratory‐based sources. Specifically, accelerator‐based sources are extremely bright, and are pulsed. Synchrotrons are broadband sources that are up to 1000 times brighter than black body sources and with pulses that are of order 100 ps long. Free electron laser sources are 6–10 orders of magnitude brighter than synchrotron radiation sources, but are narrow band. The pulse lengths are sub‐picosecond. Both sources have pulse repetition frequencies of around 100 MHz. This article explains concepts of brightness and how these sources fit into the menu of available sources for vibrational spectroscopy.

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The infrared line IR4 at the NSLS

Cited by 30 publications

References 2 publications

Challenges in Biology and Medicine with Synchrotron Infrared Light

Challenges in Biology and Medicine with Synchrotron Infrared Light

Measurement of Infrared Transition Spectrum of Synchrotron Radiation Through Superconducting YBa₂Cu₃O_7-δFilm

Synchrotron and Free Electron Laser Sources of Infrared Radiation

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The infrared line IR4 at the NSLS

Cited by 30 publications

References 2 publications

Challenges in Biology and Medicine with Synchrotron Infrared Light

Challenges in Biology and Medicine with Synchrotron Infrared Light

Measurement of Infrared Transition Spectrum of Synchrotron Radiation Through Superconducting YBa2Cu3O7-δFilm

Synchrotron and Free Electron Laser Sources of Infrared Radiation

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Measurement of Infrared Transition Spectrum of Synchrotron Radiation Through Superconducting YBa₂Cu₃O_7-δFilm