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Beamline 11.0.2 Print
Tuesday, 20 October 2009 09:17

 

Molecular Environmental Science (MES)

 

Scientific disciplines: Surface chemistry, environmental, planetary, biological, and medical sciences

 

Endstations:

 

GENERAL BEAMLINE INFORMATION

Operational

Yes

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

Source characteristics

5.0-cm period elliptical polarization undulator (EPU5)

Energy range

See endstation tables

Monochromator

See endstation tables

Endstations

Ambient-pressure photoemission spectroscopy
Scanning transmission x-ray microscope (STXM)

Local contacts This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Chemical Sciences Division, Berkeley Lab
Phone: (510) 495-2796
Fax: (510) 486-5596

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Advanced Light Source, Berkeley Lab
Phone: (510) 486-5188
Fax: (510) 495-2067

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Chemical Sciences Division, Berkeley Lab
Phone: (510) 495-2775
Fax: (510) 495-2067

Spokesperson This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Chemical Sciences Division, Berkeley Lab
Phone: (510) 486-6937
Fax: (510) 486-5596
Beamline phone numbers
(510) 495-2077
(510) 495-2119
Website http://beamline1102.als.lbl.gov

 

ENDSTATION INFORMATION

Endstation name

Ambient-pressure photoemission spectroscopy (APPES)

Detector Specs electron energy analyzer
Characteristics Photoelectron emission spectroscopy at relatively high gas pressure

Energy range

75-2000 eV

Monochromator

Variable-included-angle PGM

Calculated flux (1.9 GeV, 400 mA)

5 x 1012 photons/s

Resolving power (E/ΔE)

2500-7500

Spot size at sample (FWHM)

10 x 10 µm

Sample format Solid, liquid on solid, gas on solid

Sample environment

UHV, up to 10 Torr gas or vapor

Scientific applications

Surface chemistry, catalysts, environmental science.

Experimental techniques

XPS, NEXAFS

Local contact

This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Chemical Sciences Division, Berkeley Lab
Phone: (510) 495-2796
Fax: (510 486-5596

 

ENDSTATION INFORMATION

Endstation name

Scanning transmission x-ray microscope (STXM)

Energy range

130-2000 eV

Monochromator

Variable-included-angle PGM

Detectors Scintillator with PMT, APD
Characteristics X-ray spectromicroscopy with <20 nm resolution

Calculated flux (1.9 GeV, 400 mA)

~109 photons/s

Resolving power (E/ΔE)

2500-7000

Spatial resolution

14tom nm

Spot size at sample

20 x 20 nm

Sample format

Thin sections, films, and particulates (50–1000 nm thick); 3 x 3 mm in area

Sample preparation

No preparation chamber available

Sample environment

Helium up to 1 atm, vacuum to 10-2 Torr, inert gas up to 1 atm

Special notes

Samples may be wet or dry; thin films may be deposited on silicon nitride windows or TEM grid. External magnetic field can be applied—up to 600 G.

Scientific applications

Environmental, magnetic dynamics, actinides, planetary, biological, medical

Experimental techniques

Imaging, NEXAFS in small spots; chemical mapping at <20-nm resolution

Local contact

This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Advanced Light Source, Berkeley Lab
Phone: (510) 486-5188
Fax: (510) 495-2067