D2AM, a Beamline with a High-Intensity Point-Focusing Fixed-Exit Monochromator for Multiwavelength Anomalous Diffraction Experiments.

D2AM, a Beamline with a High-Intensity Point-Focusing Fixed-Exit Monochromator for Multiwavelength Anomalous Diffraction Experiments. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

D2AM, a Beamline with a High-Intensity Point-Focusing Fixed-Exit Monochromator for Multiwavelength Anomalous Diffraction Experiments. Abstract Text:

J L Ferrer,J P Simon,J F ,B Caillot,E Fanchon,O ,S Arnaud,M Guidotti,M Pirocchi,M Roth,

D2AM is a french CRG beamline installed at the ESRF (European Synchrotron Radiation Facility) in Grenoble, with half of the time dedicated to biological macromolecule crystallography and half to materials science studies (diffraction, wide-angle and small-angle scattering). It is constructed at the front-end BM02 of the ESRF storage ring, using the X-ray beam from a 0.8 T bending magnet. D2AM entered into routine operation at the end of 1994, and is used either for single-wavelength or for multiwavelength anomalous diffraction studies. The beam is monochromated by an Si[111] two-crystal monochromator with a resolution of about 2 x 10(-4). The first crystal is water cooled. The X-ray photon energy covers the range between 6.5 keV (lambda approximately 1.9 A) and 17 keV (lambda approximately 0.7 A), a domain of energy with many K or L absorption edges of heavy atoms of interest for biological macromolecules studies and in materials science. The X-ray beam is focused in the vertical plane by two long curved mirrors and in the horizontal plane by the second crystal of the monochromator which is given an adjustable sagittal curvature. A spot size of 0.3 x 0.1 mm (FWHM) is measured at the sample position. Both mirrors are cut out of a 6"-diameter 1.1 m-long Si single crystal, polished and coated with a 400 A Pt thin film. The rugosity is better than 4 A r.m.s. and the longitudinal slope error is better than 5 x 10(-6) rad r.m.s. The first mirror is water cooled, the second is not. The beam intensity on the sample is about 10(11) photon s(-1) on a 0.3 x 0.3 mm focus area at 100 mA in the storage ring of the ESRF. The harmonic rejection ratio obtained with the two mirrors is better than 10(-5) for lambda/3. The combined optical system, mirror/monochromating-crystals/mirror, used on D2AM constitutes altogether a high-intensity point-focusing fixed-exit monochromator, which has the additional property that the energy resolution is not dependent on the beam divergence in use. Its stability and resolution are perfectly adapted to multiwavelength anomalous diffraction studies. The alignment of the mirrors and the monochromator is fully automated, taking 5 min, with the exception of the adjustment of the sagittal focusing. During multiwavelength diffraction experiments the wavelength is changed by a fast single monochromator rotation. Neither realignment of the mirrors nor readjustment of the beam focusing are necessary. The stability and reproducibility of the selected X-ray photon energy is better than 0.5 eV.

D2AM, a Beamline with a High-Intensity Point-Focusing Fixed-Exit Monochromator for Multiwavelength Anomalous Diffraction Experiments. Publishing Authors By Initials

JL Ferrer,JP Simon,JF ,B Caillot,E Fanchon,O ,S Arnaud,M Guidotti,M Pirocchi,M Roth,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

D2AM, a Beamline with a High-Intensity Point-Focusing Fixed-Exit Monochromator for Multiwavelength Anomalous Diffraction Experiments. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of synchrotron radiation

VOLUME: 5

Page Numbers: 1346-56

Journal Abbreviation:

ISSN: 0909-0495

DAY: 1

MONTH: Nov

YEAR: 1998

D2AM, a Beamline with a High-Intensity Point-Focusing Fixed-Exit Monochromator for Multiwavelength Anomalous Diffraction Experiments. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9888878

D2AM, a Beamline with a High-Intensity Point-Focusing Fixed-Exit Monochromator for Multiwavelength Anomalous Diffraction Experiments. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: D2AM, a Beamline with a High-Intensity Point-Focusing Fixed-Exit Monochromator for Multiwavelength Anomalous Diffraction Experiments. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for D2AM, a Beamline with a High-Intensity Point-Focusing Fixed-Exit Monochromator for Multiwavelength Anomalous Diffraction Experiments.

AFFILIATION: Laboratoire de Cristallographie et Cristallogénèse des Protéines (LCCP), Institut de Biologie Structurale Jean-Pierre Ebel, 41 Avenue des Martyrs, 38027 Grenoble CEDEX 1, France.

Country: Denmark

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Synchrotron Radiat

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

D2AM, a Beamline with a High-Intensity Point-Focusing Fixed-Exit Monochromator for Multiwavelength Anomalous Diffraction Experiments Related Publications

• 'Hypnotic' prescription patterns in a large managed-care population.
• A missense mutation in Caenorhabditis elegans prohibitin 2 confers an atypical multidrug resistance.
• Alanyl-glutamine infusions to patients with acute pancreatitis.
• Amino acid residues in Rag1 crucial for DNA hairpin formation.
• An epidemiologic study of sleep-disordered breathing symptoms among adolescents.
• Association between seasonal changes in fatty-acid composition, expression of VLDL receptor and bovine sperm quality.
• Avoiding all nonsteroidal antiinflammatory drug toxicity.
• D2AM, a Beamline with a High-Intensity Point-Focusing Fixed-Exit Monochromator for Multiwavelength Anomalous Diffraction Experiments.
• Differential helical orientations among related G protein-coupled receptors provide a novel mechanism for selectivity. Studies with salvinorin A and the kappa-opioid receptor.
• Effect of alpha-tocopherol pretreatment on high energy metabolites in rabbit skeletal muscle after ischemia-reperfusion.
• Expression of the 1B isoforms of divalent metal transporter (DMT1) is regulated by interaction of NF-Y with a CCAAT-box element near the transcription start site.
• Finessing fibromyalgia.
• Genetic interaction screens advance in reverse.
• Homeostatic and toxic mechanisms regulating manganese uptake, retention, and elimination.
• Immunohistochemical detection with quantum dots.
• Improving caregiver well-being delays nursing home placement of patients with Alzheimer disease.
• Influence of alpha-ketoglutarate infusion on glutamate and glutamine metabolism.
• Influence of diseases on the metabolism of L-alanayl-L-glutamine and glycyl-L-glutamine.
• Kinetics of organ specific metabolism of a bolus injection into the jejunum of glutamine, alpha-ketoglutarate, ornithine and ornithine - alpha-ketoglutarate.
• Multiple pathways of selected gene amplification during adaptive mutation.
• Pancreatic polypeptide in obese children before and after weight loss.
• Regulation of mouse brain glycogen synthase kinase-3 by atypical antipsychotics.
• Salvinorin A: from natural product to human therapeutics.
• Screening the receptorome.
• Short communication: genetic evaluation of the interval from first to last insemination with survival analysis and linear models.
• Solute partitioning between the ionic liquid 1-n-butyl-3-methylimidazolium tetrafluoroborate and supercritical CO2 from capillary-column chromatography.
• Stress-related sleep disturbance and polysomnographic response to caffeine.
• Target DNA structure plays a critical role in RAG transposition.
• The histochemistry and cell biology vade mecum: a review of 2005-2006.
• The role of nutrition in periodontal and oral health.