esrf motivation and participation in ‘caradd’ fp7 program · esrf beam 50ps pulses at...
TRANSCRIPT
Slide: 1‘CaraDD’ FP7 Preparation Meeting, GSI Darmstadt 25-26 June 2007
J Morse, Instrument Support Group, Exp. Div., [email protected] +33 476 882126
ESRF Motivation and Participation in ‘CaraDD’ FP7 Program
Slide: 2‘CaraDD’ FP7 Preparation Meeting, GSI Darmstadt 25-26 June 2007
ESRF Motivation
Synchrotron X-ray Beam Monitoring:
-diamond X-ray transparency (and thermal) properties-radiation hardness / low leakage current-single crystal material for X-ray ‘optical’ requirements
Microbeam Radiation Therapy (microdosimetry):
-near tissue equivalence-radiation hardness
Access to diamond detectors for:
Above based on multielectrode íonization-chamber’ designsMultichannel electrometer or wideband readout electronics
Slide: 3‘CaraDD’ FP7 Preparation Meeting, GSI Darmstadt 25-26 June 2007
visible/UV microscanning with fluorescence spectrometry
DIC and crossed polarizer microscopy
BU
LK
AFM
X-ray topography; X-ray small angle scattering
SU
RF
AC
E
Scanning Electron Microscopy and CathodoluminescenceEBIC: near surface charge injection
‘XBIC’ (X-ray beam induced current) mapping
Characterization and testing of diamond material and devices:
laser optical interferometry
ESRF contribution / worktasks (1)
Slide: 4‘CaraDD’ FP7 Preparation Meeting, GSI Darmstadt 25-26 June 2007
ESRF contribution / worktasks (2)
Device and System level issues:
Device mounting:- low profile packaging and leadouts- wideband (GHz) and multichannel (100+) - high thermal load (>10W)
Device specification / design:- multichannel electrode configurations- non metallic electrodes- simulation
System level: - signal processing electronics- interfaces and software (test and end-user)
X-ray Microbeam dosimetry:- absolute calibrations, tissue kerma mounting…
Fabrication and testing of contacted diamonds
Slide: 5‘CaraDD’ FP7 Preparation Meeting, GSI Darmstadt 25-26 June 2007
ESRF Preliminary Task - Timelines
Slide: 6‘CaraDD’ FP7 Preparation Meeting, GSI Darmstadt 25-26 June 2007
Annual cost of a thesis student (inc. social charges etc.):
Year 1: 44k€
Year 2: 47k€
Year 3: 50k€
Annual cost of a Postdoctorate (inc. social charges etc.):
Year 1 & 2: 75k€
Year 3: 78k€
“For FP7 RTD activities, ESRF assumes that it can claim 75% of real costs
and 60% overheads”
Personnel and Costs
Slide: 7‘CaraDD’ FP7 Preparation Meeting, GSI Darmstadt 25-26 June 2007
White beam transmission (220 and 040) of E6 ‘electronic grade’ diamond plates MDS-1…5, ~3.6 x 3.6 x 0.35 mm3
E-6 ‘electronic grade’ CVD
X-Ray Topography
Slide: 8‘CaraDD’ FP7 Preparation Meeting, GSI Darmstadt 25-26 June 2007
0.65nm rms 1.9nm rms
E6 sample MDS1 (thickness 350 µm, E6 resin wheel polish,
then scaife and ‘superpolish’ by
J Butler-NRL
E6 Ascot sample after scaife polish at E6-Cuijk
Side 2 etched by carbiding braze alloy mounting
side 1 side 2
AFM
2µm
X[µm]0.00 7.03
Z[Å
]0.
005.
84
0.97Å rms
Thinned sample 45µm
Slide: 9‘CaraDD’ FP7 Preparation Meeting, GSI Darmstadt 25-26 June 2007
PROMAP 512 profilometer-ESRF
MDS-1, ~350 µm, scaife and ‘superpolish’ by J Butler-NRL
Side 1
Side 2
Laser Optical Interferometry
Slide: 10‘CaraDD’ FP7 Preparation Meeting, GSI Darmstadt 25-26 June 2007
XBIC mapping contacted diamonds
near surface (~10µm) or bulk charge injection
ESRF beam 50ps pulses at 3nsec-3µs intervals, energy (ID21) 2 … 7.2 keVFresnel zone plate focuses the X-beam to a sub-micron probe. Unwanted diffraction orders from the zone plate are removed by a central stop and an order selecting aperture (OSA).
ESRF-ID21 X-ray Microscopy Beamline
Slide: 11‘CaraDD’ FP7 Preparation Meeting, GSI Darmstadt 25-26 June 2007
X-ray beam focused to1.2 x 0.4µ2 FWHM, ~108 photos/sec at 7.2keV
Diamond on submicron x-y scanning stage
X-beam
ESRF-ID21 X-ray Microscope