Beamline Equipment

Information is given below on the current beamline capabilities.


Technical area	Specification	Status
Continuous energy range	5 - 23keV	Available
Beam size	50nm	50 nm achieved < 100nm routine
XY sample stage	Coarse motion Z motion -3,30mm Y motion +/- 6mm X motion +/-5mm (along beam) Rotation +/- 185 degrees Fine motion: X 100um Y 100um	Available Scanning up to 100Hz
XRF	Fluorescence lines from 2-23keV 4 element Si drift detector ~ 0.6-0.8 sr solid angle, 1.5Mcps per channel	Available
Differential Phase Contrast	Quad Merlin	Available
XANES imaging	Acquisition using XRF detector Energy changes >1keV approx 5 minutes switching time	Available
Diffraction Mapping	Excalibur 3M - 3 Medipix arrays with each array consisting of 2048 x512 55 x 55um um pixels Roughly 113mm square, with 100Hz frame rate.	Available
Ptychography	Acquisition using Merlin detector	Under optimisation
Tomography	XRF or diffraction tomography Contact beamline staff to discuss feasibility	Under optimisation
In situ Sample Environments	Contact beamline staff to discuss potential requirements	Under development

Nanoprobe specifications

Optics
Element	M1 mirror	M2 mirror	DCM	KB
Type	Bending	Flat	Si-111	H/V Focusing
Geometry	Horizontally deflecting 3 mrad	Horizontally deflecting 3 mrad	Horizontally deflecting	Pre-shaped 3 mrad
Coating	Si (bare), Rh, Pt	Si (bare), Rh, Pt	-	Pt/Rh bilayer
Other spec			Energy range 5-23 keV Continuously accessible 0.5 eV steps	Acceptance 150 x 450 um (H x V)
Status	Commissioned	Commissioned	Commissioned	Commissioned

The Nanoprobe endstation has been designed for multi-modal data acquisition. As such it supports mutliple detectors:

Detector	XRF	Excalibur	Merlin	X-ray eye	Diode
Size	4 channels arranged in a hemisphere centered on the beam focus, covering 0.6-0.8 sr solid angle	1806 x 1548 px 55um pixels 113 x 100 mm total area	516 x 516 px 55um pixels	2560 x 2160 px 6.5um pixels	20 mm diameter
Technology	SDD with Cube amplifiers	Medipix 3	Medipix 3	sCMOS (front-illuminated)	PIN
Max. count rate	1.5 Mcts/ch	1 Mcts/px	1 Mcts/px	0.9 Mcts/px (30000 e- well depth)
Max. frame rate	1 KHz (currently 100Hz)	100 Hz	100 Hz	30 Hz (100 Hz burst mode)	-
Exp. geometry	Backscatter*	Transmission	Transmission	Transmission	Transmission
Other characteristics	12.5 um Be window 17mm sample-detector distance	Photon-counting	Photon-counting	Scintillator-based, with 2X, 4X, 10X, 20X and 40X objectives on a motorised stage	Used for XRF It normalization if no other transmission detector is used
Availability	Available	Available	Available	Available	Available

* This detector can be used in combination with any of the others in the table