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Beamline 8.3.1

Multiple-wavelength anomalous diffraction (MAD) and monochromatic protein crystallography

Operational

Now

Source characteristics

Superbend (5.0 tesla, single pole)

Energy range

2.4-18 keV (with 1% max flux at 5 keV and 17 keV)

Monochromator

Double flat crystal, Si(111)

Measured flux (1.9 GeV, 400 mA)

1.8 x 1011 photons/s through 100-µm pinhole at 12.4 keV

Resolving power (E/ΔE)

7000

Divergence (max at sample) 3.0 (h) x 0.35 (v) mrad

Endstations

Minihutch

Detectors

3 x 3 CCD array (ADSC Q315r)

Measured spot size at sample (FWHM)

0.120 (h) x 0.108 (v) mm

Samples

Format

Single crystals of biological molecules

Preparation

Support labs available

Sample environment

Ambient or ~100 K

Special notes

Computers for data processing and analysis, robotic sample handling available

Scientific applications

Biological crystallography; multiple-wavelength anomalous diffraction (MAD), monochromatic protein crystallography

Local contact

Name: James Holton
Phone: (510) 486-4587

Spokespersons

Name: Tom Alber
Affiliation: University of California, Berkeley
Phone: (510) 642-8758
Fax: (510) 643-9290

Name: James Berger
Affiliation: University of California, Berkeley
Phone: (510) 643-9483
Fax: (510) 643-9290

Beamline phone numbers

(510) 495-2083

 

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