The HPCAT 16ID-D beamline is dedicated to x-ray scattering and spectroscopy research of materials under high pressure, typically in diamond anvil cells (DAC). With beams of 2meV energy resolution at 57Fe energy of 14.413keV, nuclear resonant techniques are used for determining phonon density of state and Mössbauer effect for Fe-containing samples at high pressures. With beams of 1eV energy resolution, a high efficient instrument for x-ray inelastic scattering (x-ray Raman) provides information of charge dynamics and chemical bonding at high pressures. The 16ID-D station has also a setup of emission spectrometer, measuring the details of fluorescence signals for information of spin state and structures of valence electrons at high pressures.

Phone:  (630) 252-1816

Beamline scientists:
Paul Chow
Phone: (630) 252-4015     E-mail:
Yuming Xiao
Phone: (630) 252-4058     E-mail:

Major ID-D features:

Feature Description
Source Single APS undulator 3.0
Monochromator Bruker liquid N2 cooled Si (1 1 1) DCM
Energy Range 4.5-35keV
Beam Size and Focusing Optics 4 (V) x 6 (H) μm with 320 (V) x 400 (H) mm new IDT KB mirrors
Flux at Sample Position NRS: ~1x109 ph/s, 2 meV energy solution
Others: ~2x1012 ph/s at 10 keV
Established Techniques Nuclear Resonant Inelastic X-ray Scattering (NRIXS)
Nuclear Forward Scattering (NFS)
Inelastic X-ray Scattering (IXS)
X-ray Raman Scattering (XRS)
Resonance/X-ray Emission Spectroscopy(R/XES)
Partial Fluorescence Yield X-ray Absorption Spectroscopy
Detectors 100K Pilatus detector, Avalanche Photo Diode (APD), AmpTek
Support Equipments Cryostats for XES and NFS, online Ruby system










 Technique highlights
(Click each technique for more information.)

Beamline technique notes

Operation manual

Data evaluation software