Beamline U12IR
Research Program - Far IR and THz spectroscopy of materials - metals, metal-oxides, superconductors, conducting polymers. Time-resolved spectroscopy.
Ring - VUV-IR Port
Status - Operational
Time Dedicated to NSLS General User Program - 75%
Link to more information on U12IR
National Synchrotron Light Source
Randy Smith: 631.344.8033, rsmith@bnl.gov
Larry Carr: 631.344.2237, carr@bnl.gov
Instrument 1: Bruker IFS125HR FTIR Spectrometer
- Frequency Range: 6 - 600 cm-1
- Resolution: 0.001cm-1
- Brightness (compared to a black body): 1000X
- Spot Size: diffraction limited
- Total Angular Acceptance: (mradians): 90H x 90V
Mirror System - Dipole bending magnet synchrotron source produces *continuum* spectral output. Approximately 50% polarized (75% horizontal component, 25% vertical component). Light is collected by mirror system using 90 mr by 90 mr extraction through 11mm diameter diamond window at f/11. Polarization is rotated 90 degrees (predominantly vertical polarization) through FTIR spectrometer.
Experimental Apparatus - Standard spectrometer sample compartment. P-E style card holder. External specimen chamber for relative transmittance or relative reflectance (no special provisions for absolute reference). Heli-tran and Oxford OptiStat available only for Users with specific cryogenic experience (no support or detailed training provided by NSLS).
Opus NT running under Windows XP. Network/internet accessible.
This page last updated by Larry Carr on January 08, 2009. Disclaimers.