coherent x-ray scattering endstation at bessy...bessy functionalities of the new endstation...

Tino Noll, Manuel Fohler, Durgamadhab Mishra, Jan Geilhufe, Dieter Engel, Peter Bischoff and

Stefan Eisebitt

Institut für Optik und atomare Physik der TU-Berlin /

Helmholtz-Zentrum-Berlin für Materialien und Energie

New mechanics

for the

Coherent X-ray scattering endstation

at

BESSY

Functionalities of the new endstation

Dedicated coherent scattering chamber for users

High flux beam line at UE 49 SGM

Reflection, Transmission

Microscopy, Scattering (static and dynamic (time, temperature, field etc))

Holography, Ptychography, Coherent Diffraction Imaging, Tomo-holography…

Retractable for using other endstations like solid state RICXS

ID aperture

Wall

WAU1 Grating

Exit slit

WAU2 WAU3

Filters

Focus

Schematic view of the beam line (not up to scale)

Beamline

Design

Liquid helium dewar

Support frame

CXS Chamber

Sample transfer

Focusing mirror

X-ray

The experiment patform at 1.6 m

Opening and retracting the chamber

Scattering geometry

Incoming x-ray

Scattered x-ray

Vector magnet

CCD detector

Slider with beam stop

y

x

- z

Inner mechanics without magnet

Sample holder

Sample manipulator

CCD

Inner part without magnet

Seite 11

The detector manipulator inside

the transport frame

CCD movements

Sample manipulator

sample holder

piezo linear motors

capacitive encoders

movable platform

Sample manipulator

X

Z Y

light direction

Sample manipulator

X

Z Y

pitch

roll

jaw

light direction

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Seite 16

The sample manipulator

MEDSI14 Tino Noll et. al. Coherent X-ray scattering endstation at BESSY Page 17

moving the sample platform 50 microns

in beam direction and return to origin

MEDSI14 Tino Noll et. al. Coherent X-ray scattering endstation at BESSY Page 18

moving the sample platform 1 micron

lateral to the beam

MEDSI14 Tino Noll et. al. Coherent X-ray scattering endstation at BESSY Page 19

moving the platform 2mm

vertical up and down

MEDSI14 Tino Noll et. al. Coherent X-ray scattering endstation at BESSY Page 20

Sample transfer

coronal section of the endstation

sample

magazine

for 30

samples

transfer arm

with grabber

vector magnet

path to the

spectrometer

sample

6 DOF

platform for

sample

manipulation

Sample transfer unit

Magazine

Grabber with three fingers

Sample exchange inside the chamber

MEDSI14 Tino Noll et. al. Coherent X-ray scattering endstation at BESSY Page 24

chuck mechanism

Thank you!