Unified Data Sheet

P62 is dedicated to Small Angle X-ray Scattering (SAXS) experiments, which require high flux and/or energy scanning, like SAXS computed tomography and high-resolution anomalous scattering. The energy range covers 3.5 - 35.0 keV with an optimized photon flux around 12 keV. Simultaneous wide-angle X-ray scattering can be at P62.

CONTACT

GENERAL SPECIFICATIONS

techniques available

SAXS, ASAXS,GISAXS, WAXS, AWAXS

photon source

undulator U32

period / number of periods

31.4 mm / 61

source brilliance

1018 ph / s / 0.1% bw / mA

polarization available

linear horizontal

energy range

3.5 keV - 35.0 keV

beamline energy resolution

ΔE/E = 1.4 x 10-4 resp. 0.3 x 10-4

max flux ON SAMPLE

1 x 1013 at 8.9 keV (calculated)

spot size ON SAMPLE

100 µm x 4 µm to 2 mm x 1 mm

sample type

any

OPTICS

type

liquid N2 cooled Double Crystal Monochromator

available reflections

Si111 and Si311

energy range

3.5 keV - 35.0 keV

resolving power

ΔE/E : 1.4 x 10-4 .. 0.3 x 10-4

type

Mirror 1 and 2

coating
  • B4C
  • Rh
  • Pt

energy range

3.5 keV - 35.0 keV

usage
  • harmonic rejection (B4C: 3.5 - 10.0 keV, Rh: 9.0 - 20.0 keV, Pt: 15.0 - 35.0 keV)
  • vertical focusing: bending of the second mirror; focal length adjustable
  • horizontal focusing: fixed focal length, only for B4C and Rh stripes
  • unfocused operation: flat stripes

type

compound refractive lens

material / shape

Be / 2D

radius of curvature / maximum number of lenses
  • 500 µm / 90x
  • 1500 µm / 3x
  • 2500 µm / 1x
  • 5000 µm / 1x

ENDSTATION

SAXS / WAXS

experimental table

breadboard

vacuum sample chamber

yes

beam height over table

tbd.

DETECTORS

Detector 2D - SAXS

type

Eiger2 X 9M (in vacuum)

count rate

107 [ph/s/pixel]

pixel size

75 µm x 75 µm

sensitive area

233.1 mm x 244.7 mm

array size

3108 x 3262 = 10138296 [pixels]

maximum frame rate

230 Hz (full area)

environment

in vacuum version

degree of freedom / transaltions

3 / X-, Y-, Z-direction

 

Detector 2D - WAXS

type

Eiger2 X 4M-DESY

count rate

107 [ph/s/pixel]

pixel size

75 µm x 75 µm

sensitive area

155.1 mm x 162.2 mm

array size

2068 x 2162 = 4471016 [pixels]

maximum frame rate

500 Hz (full area)

environment

in air version
(modified housing of the detector)

degree of freedom / transaltions

4 / X-, Y-, Z-direction and Tilt around Y

SAMPLE ENVIRONMENT

solid sample holder

tbd. (in vacuum and in air)

liquid sample handling

tbd. (in vacuum and in air)

computed tomography setup

tbd. (in vacuum and in air)

Hexapod

tbd. (in vacuum and in air)

nanopositioning stages

accuarcy 5nm

rotation stage

360° rotation with 100°/s

TECHNIQUES

Transmission SAXS/WAXS

yes

Transmission ASAXS/AWAXS

yes

Transmission SAXS/WAXS-CT

yes

Fluorescence

yes (detector from loan pool)

Grazing incidence SAXS

yes

CONROL / DATA ANALYSIS

Software type

Spock, Tango, Python, C++

Data output tpye

spectra, images, parameters such as temperature, ...

Data output format

NEXUS, HDF5, ASCII

Software(s) for quantitive analysis

DPDAK, SASFIT, TomoPy, ...