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Beamline 12.2.2 Print
Tuesday, 20 October 2009 09:31
High-Pressure (California High-Pressure Science Observatory: Calipso)

 

Endstations:

 

GENERAL BEAMLINE INFORMATION

Operational

Yes

Proposal cycle Proposals for General Sciences Beamlines (6-month cycle)

Source characteristics

Superbend magnet, 1.9GeV, 5.29Tesla, 500mA

Monochromator

Si(111) or Multilayer

Energy range

6-40 keV for Si(111), 14-28 keV for Multilayer

Resolving power (E/ΔE) Si(111) = 7000, Multilayer =100
Beam size (HxV) Focused: 10 x 10 micron
Unfocused: 90 x 100 micron

Scientific applications

High-pressure science

Scientific disciplines Earth sciences, materials science, construction materials, chemistry, energy.

Endstations

Medium pressure
High pressure laser heating

Experimental techniques

High pressure, diffraction, x-ray imaging, XAS, laser heating

Local contact

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Advanced Light Source, Berkeley Lab
Phone: (510) 495-2442
Fax: (510) 495-2067

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Advanced Light Source, Berkeley Lab

Phone: (510) 495-2716

 

Spokespersons

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Advanced Light Source, Berkeley Lab
Phone: (510) 486-4276

Fax: (510) 486-7696

Beamline phone (510) 495-2055
Website http://www-esg.lbl.gov/BL1222/home.htm

 

ENDSTATION INFORMATION
Endstation name Medium pressure
Detector CCD

Characteristics

Small grain sizes, weak scattering, low to medium pressures (up to 600 kbar).

Beam size 150(H) x 100(V) micron adjustble to be smaller

Calculated flux (1.9 GeV, 400 mA)

2 x 1011 photons/s through a 100-µm aperture at 20 keV with Si(111) monochromator

Calculated flux (1.9 GeV, 400 mA)

6 x 1012 photons/s through a 100-µm aperture at 20 keV with Multilayer monochromator

Spot size at sample

138 (h) x 71 (v) µm FWHM

Sample format

Powders, liquids, and suspensions

Sample preparation

Loaded into diamond anvil cells

Sample environment

Diamond anvil cell, resistive heating

Special notes

Endstation will be set up for high throughput with automated data collection, pressurization, and pressure measurement.

 

ENDSTATION INFORMATION
Endstation name

High pressure laser heating after KB focussing of x-rays

Detectors MAR345 image plate and Bruker PT200 CCD

Characteristics

Large grain sizes, very high pressure (>1.5 Mbar)

Spot size at sample

18 x 78 µm FWHM (adjustable)

Calculated flux (1.9 GeV, 400 mA)

3 x 109 photons/s through a 10-µm aperture at 20 keV for Si(111)

Sample format

Powders and liquids

Sample preparation

Loaded into diamond anvil cells with inert gases or other pressure-transmitting fluids

Sample environment

Diamond anvil cells, laser heating

Special notes

Samples will be laser heated; online pressure measurement and standard spectroscopies will be available

 

More information about the California High-Pressure Science Observatory (Calipso) is available on the Beamline 12.2.2 Web site.