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:




Single APS undulator 3.0


Bruker liquid N2 cooled Si (1 1 1) DCM

Energy Range  

4.5-37 keV

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 resolution
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


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.)

Operation manual (available at beamline)