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Beamline X10C

General Information

Source Type
Bending Magnet

Status
Operational

General User Beamtime
25%

Energy Range
4-24 keV

Beamline Type
Participating Research Team (PRT)

Technique(s)
X-ray absorption spectroscopy
X-ray absorption spectroscopy, extended fine structure
X-ray absorption spectroscopy, fine structure
X-ray absorption spectroscopy, near edge fine structure
X-ray absorption spectroscopy, near edge structure

Institution(s)
ExxonMobil Research and Engineering Co.

Research Types
X-ray absorption spectroscopy (XAS).

Contact Information

Spokesperson The person from each beamline who acts as a contact point between the beamline management and NSLS administration. Contact for questions about the beamline scientific program, experimental capabilities, and beamline management.
Paul Stevens, ExxonMobil Research and Engineering Co., paul.a.stevens@exxonmobil.com, 908/730-2584

Local Contact The beamline staff member who is typically responsible for overseeing the daily operation and maintenance of the beamline. Contact for questions about beamline instrumentation, experimental details, and training.
Michael Sansone, ExxonMobil Research and Engineering Co., msanson@bnl.gov, 631-344-5759
Larry Fareria, Brookhaven National Laboratory, fareria@bnl.gov, 344-2796

Beamtime Scheduler The beamline staff member responsible for coordination of beamline schedule every trimester. Contact for questions about beamtime scheduling.
Paul Stevens, ExxonMobil Research and Engineering Co., paul.a.stevens@exxonmobil.com, 908/730-2584

Beamline Phone
631-344-3265

Instrumentation

Beamline Characteristics

Energy Range Mono Crystal or Grating Resolution (ΔE/E) Flux Spot Size (mm) Total Angular Acceptance (mrad)
3.5 – 24.7 keV Si(220) 1 x 10-4 ~1010 ph/sec (@ 10 keV , 100mA, 2.5 GeV) 10H x 0.5V 3

Source Type
Bending magnet

Optical System
Mirror: Rhodium coated cylindrically bent mirror; sagittal radius is 80 mm and meridional radius is tunable; the mirror is located 12 meters from the source and focuses vertically on the sample located at 21 meters; the mirror is positioned after the monochromator and is used as a harmonic rejection filter where the rejection energy is adjusted by changing the grazing incidence angle of the mirror; vertical and horizontal slits are located before the monochromator.

Monochromator: Double flat crystal monochromator located 10.2 meters from the source; a piezoelectric driver using an A/C feedback system locks on the peak of the Darwin rocking curve; vertical and horizontal slits with 3 micron resolution are located before the monochromator.

Experimental Apparatus
Radiation hutch. Ion chambers and current amplifiers.

Computer System Hardware & Software
The X10C beamline is controlled by a MicroVax II computer system running VMS and is interfaced to a Kinetic Systems 3922 crate controller; EXAFS data collection software allows the user to set up and manage experimental parameters and collect data in a variety of configurations; analysis is primarily performed using EXAPLT which also provides a real-time plotting capability.

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