Beamline 12.2.2

California High-Pressure Science Observatory (Calipso)

Operational	2002
Source characteristics	Superbend
Energy range	See endstation tables
Monochromator	See endstation tables
Scientific applications	High-pressure science
Experimental techniques	Diffraction, spectroscopy, small- and wide-angle scattering.
Endstations	Nanoscience/materials chemistry Solid-state physics/geoscience

Endstation	Nanoscience/materials chemistry
Characteristics	Small grain sizes, weak scattering, low to medium pressures (up to 600 kbar).
Energy range	6-40 keV
Monochromator #1	Double-crystal Si(111)
Calculated flux (1.9 GeV, 400 mA)	2 x 10¹¹ photons/s through a 100-µm aperture at 20 keV
Resolving power (E/DE)	7000
Monochromator #2	Multilayer
Calculated flux (1.9 GeV, 400 mA)	6 x 10¹² photons/s through a 100-µm aperture at 20 keV
Resolving power (E/DE)	100
Spatial resolution	20 µm
Detectors	Mar345 imaging plate and MarCCD
Spot size at sample	138 (h) x 71 (v) µm FWHM
Samples
Format	Powders, liquids, and suspensions
Preparation	Loaded into diamond anvil cells
Sample environment	Diamond anvil cells
Special notes	Endstation will be set up for high throughput with automated data collection, pressurization, and pressure measurement.
Scientific applications	Interferometric wavefront measurement of optics designed for EUV lithography
Local contact	Name: Simon Clark Phone: (510) 495-2442 Fax: (510) 495-2067 Email: smclark@lbl.gov
Spokespersons	Name: Paul Alivisatos Affiliation: Univ. of California, Berkeley Phone: (510) 643-7371 Fax: (510) 642-6911 Email: alivis@uclink4.berkeley.edu	Name: Howard Padmore Affiliation: Advanced Light Source, Berkeley Lab Phone: (510) 486-5787 Fax: (510) 486-7696 Email: hapadmore@lbl.gov

Endstation	Solid-state physics/geoscience
Characteristics	Large grain sizes, very high pressure (>1.5 Mbar)
Energy range	6-40 keV
Monochromator	Double-crystal Si(111)
Calculated flux (1.9 GeV, 400 mA)	3 x 10⁹ photons/s through a 10-µm aperture at 20 keV
Resolving power (E/DE)	7000
Detectors	Scienta SES 100 (angle-resolved photoemission) and SES 200 (spin-resolved photoemission)
Spot size at sample	18 x 78 µm FWHM (adjustable)
Samples
Format	Powders and liquids
Preparation	Loaded into diamond anvil cells with inert gases or other pressure-transmitting fluids
Sample environment	Diamond anvil cells
Special notes	Samples will be laser heated; online pressure measurement and standard spectroscopies will be available
Local contact	Name: Simon Clark Phone: (510) 495-2442 Fax: (510) 495-2067 Email: smclark@lbl.gov
Spokespersons	Name: Raymond Jeanloz Affiliation: Univ. of California, Berkeley Phone: (510) 642-2639 Fax: (510) 643-9980 Email: jeanloz@uclink.berkeley.edu	Name: Howard Padmore Affiliation: Advanced Light Source, Berkeley Lab Phone: (510) 486-5787 Fax: (510) 486-7696 Email: hapadmore@lbl.gov