Photon Production Laboratory Ltd. MIRRORCLE-CV4 for material science and imaging
Photon Production Laboratory Ltd.
MIRRORCLE-CV4for material science and imaging
MIRRORCLE-CV4
1.1m0.65m
1.6m
Specification
• 4 MeV storage ring 35x35cm2
Total weight including MIC: 1.25 tRequired Power : 50 KVAno synchrotron RF cavity
• Injector beam current: 150mArepetition rate: 1kpps
• Average beam power: 120W
• accumulated beam current: about 4A without target
• generate x-rays by target via Bremsstrahlung
•guaranteed photon density for X-rays of 10 keV through 4MeV is 108
photons/[s,mrad2,0.1%BW]
• Brilliance is 1012
Storage ring
Microtron
Klystron
X-ray port
X-ray generation scheme
Brilliance of CV4
Photodiode efficiency: photons/nA =2.67E+3 at 17.4keV > 6.7nA=4E+12 photons/s/mrad^2/mm^2 at 5k Hz inj. This is equivalent to the X-ray tube of 50kV,20 KW
32.04 mR/pixel6.7nA by PD
Flux
Flux[2π/γ2]
MIRRORCLE
Spring-8
Mirrorcle is advance by the following;
SynchrotronSynchrotronInjectorInjector
X線X線
High energy X-ray
NDT of heavy material construction
X-ray energy is tunable by monochrometer
Orbit radius=8cmstored beam current=4A> High power radiation source
1-10 μm wide target
highly coherent
Magnified imaging
very high energy resolution is attained
4. Polychromatic X-ray
2. Small emission point
3. Cone beam
1. High current
A
B
C imaging of large object
We have a technologyWe have a technology to designto design beam linesbeam lines
2m
Dispersive typeXAFS is possible
Wide range of spectrum can betaken simultaneously
• High energy resolution is achieved by short beam line• Dispersive type XAFS is possible• No mechanism which interfere the measurement• High speed measurement
Energy resolution depend on the source size
Photon Factory
MIRRORCLE 93005000
10100
Energy resolutionE/ΔE
Emitter size[μm]
source-detectordistance [m]
2525
MIRRORCLE 510010 3
XANES
EXAFS吸収係数
光エネルギー
XAFS spectrum
BLSEE θτθ cot)(/ 22 Δ+Δ+Δ=Δ
Δθ:capture angleΔτ:Brag diffraction (~10-5)ΔS:source sizeL : source-detector distanceθB:Bragg angle
Dispersive XAFS on 10μm thick Mo
3.5
3.0
2.5
2.0
1.5
mR
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
200 250 300 350 400 450 500 550
Mo10um
Sampleなし
0.2
0.205
0.21
0.215
0.22
0.225
0.23
0.235
0.24
0.245
0.25
19950 20050 20150 20250 20350 20450 20550
Photon Energy [eV]
mμt
This spectrum can be taken in30min without focusing elements by CV4
Dire
ctio
nof
disp
ersi
on
Laue experiment
sample SiO2(111)
Fine space resolution TOPOGRAPH isenabled
Imaging is advanced by MIRRORCLE
•The small focus point is the advantage for Magnified imaging and x-ray microscope•Significant phase contrast appears
Configuration of magnified imagingImaging plate
L
sample 2L=750 (2 times)
10L=3750(10 timesImaging Plate: ST-VI(standard)
Reader:FCR-XG1(FUJIFILM Co.)
150μm/pixel Dynamic range12bit
100 times magnification and 1 μm size emitter appreciate 1.5μm space resolution
Fine space resolution is obtained without loosing intensity
Test chartX-ray contact image
Pb1mmPoint
Pt100μmPoint
Cu25μmPoint
W10μmPoint
W10μmLine
W2.5μmLine
12times m
agnified
imagin
g
SOURCE:MIRRORCLE-6XDetector:Imaging Plate(FUJIFILM, XG-1 150μm/pixel)S-O distance 400mm
20 16 12.5 10 8 [LPM]
Phase contrast appears by small target
25μmφ
50μmφ
Target size
100μmφ
25 32 40 50 [μm]
High resolution
2mm thickPlastic
plate
10mm
10mm
10mm
High contrast
11timesmagnified
Air
PlasticPlate
Edge is more enhanced in larger magnification
(3.3mm)
(2.0mm)
10mm
0.5mmthick plate x11
A B
10mm
A B
10mm
A B
x11
Shape dependence of edge effect
10mmφRod
Air bubble in water x11
A
B
5mmφpipe
Plane sample 凸shape
凹shape 凹凸shape sample
target:Cu25μmφRod target:W10μmφWire
target:W10μmφWiretarget:W10μmφWire
X-ray
X-ray
X-ray
X-ray
Magnified phase contrast image
12 times magnified image by MIRRORCLE
5 times magnified.
Magnified imaging of Chest phantom
rib vessels
10 times magnified
Very hard X-ray from MIRRORCLE is advantage for
NDT of heavy constructions
Polychromatic beam is usefulto distinguish material, density and volumeto distinguish material, density and volume
High energy polychromatic X-ray is usefulX-ray spectrum is selected by the thickness and material of targets
We are able to see different kind of materials and complex materials
Cocoons
Optical switch
50mm
・inspection of concrete
15cm thick
X1
X3 projection
25μm target source-object distance
1.3m 50sec imaging time
Expanded
60cm thick concrete
45cm thick concrete
Advanced features of MIRRORCOE beam lines
1. MIRRORCLE is different from synchrotron light source and X-ray tube
2. Small emitter point is advantage for magnified imaging and significant phase contrast, and for reducing scattering background
3. Very hard X-ray is useful for precise non-destructive testing.
4. Small emitter point is advantage for very high energy resolution by the very short monochrometer beam line.
5. Widely spread beam is advantage for the DEXAFS.6. MIRRORCLE is the machine provide a very thin fan
beam. Small angle scattering and CT will be combined.