Héctor Jorge Sánchez Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in Nano-science and Environmental Monitoring - 17 November - 28 November 2014 Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in Nano-science and Environmental Monitoring 17 November - 28 November 2014
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Héctor Jorge Sánchez
Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in
Nano-science and Environmental Monitoring - 17 November - 28 November 2014
Joint ICTP-IAEA School on
Novel Experimental Methodologies for Synchrotron Radiation
Applications in Nano-science and Environmental Monitoring
17 November - 28 November 2014
Héctor Jorge Sánchez
Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in
Nano-science and Environmental Monitoring - 17 November - 28 November 2014
Matter
Incoherent Scattering
Compton
Electron
Compton
Photon
Coherent Scattering
Rayleigh
Photon
Primary
Photon
µ = c + i +
Photoelectric Effect
Auger
Electron
Fluorescent
Photon
Photoelectron
Héctor Jorge Sánchez
Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in
Nano-science and Environmental Monitoring - 17 November - 28 November 2014
Héctor Jorge Sánchez
Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in
Nano-science and Environmental Monitoring - 17 November - 28 November 2014
1 f
ip I
1 , 1 i c s I
2 f
ip I
2 , 2 i c s I
) ( ' E I
i c s I ,
Sample
Reflector
2
max
max
2
2
0
1
0
2
)́(
2
2
1
10,2 ´2
~
cos´´)(
´)(1ln
´)(
cos
cos´´)(
)~
(1ln
´´)(
cos
´)()~
(
´)´´,(´´),~
()~
(
8
E
N
k
EEE
s
s
ss
s
sss
y
i
x
kyx
i dEe
EdE
E
EE
E
EGEE
EEQEEQEII
max
max
2
2
00
2
)́(
01 ´2
~
´)()~
(
´),~
()~
(
4
EE
EE
ss
x
ix
i dEe
EdGEE
EEQEII
J. Sherman, Spectrochim. Acta 7, 283 (1955).
T. Shiraiwa and N. Fujino, Jpn. J. Appl. Phys. 5, 886 (1966).
Héctor Jorge Sánchez
Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in
Nano-science and Environmental Monitoring - 17 November - 28 November 2014
Héctor Jorge Sánchez
Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in
Nano-science and Environmental Monitoring - 17 November - 28 November 2014
K
L1
L2
L3
...
hn < WK
hnRRS
Wf
hnRRS = hn – ΩL2 – Ωf – k
Héctor Jorge Sánchez
Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in
Nano-science and Environmental Monitoring - 17 November - 28 November 2014
W
3
3
0
22
2
2
0
0
8
)( 1),(
kduEEMnc
mc
e
E
E
dE
EEd LksfikS
S
SKramers- Heisenberg ´s Equations
(Time Depending Perturbation Theory)
)( 0
12
Kkk
fiiuEm
SupkSupPM
W
2200 ),(
),(
KSLK
SS
S
S
E
EEEG
dE
EEd
WW
W
WW
fL eE EE
LK
dEE
EEE
0
2
21
0
2
)(
210 e ),(
),( 0 SEEd
SE
),( 10 EE
1E
Héctor Jorge Sánchez
Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in
Nano-science and Environmental Monitoring - 17 November - 28 November 2014
X-Ray Tube
Primary Target
Detector
45º45º
Secondary Target (Z!!)
SR
Monochromator
Sample
Detector
45º
45º
Héctor Jorge Sánchez
Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in
Nano-science and Environmental Monitoring - 17 November - 28 November 2014
XRF Beamline (LNLS)
• Storage ring operating at 3.7 GeV and nominal current of 100 mA.
• Silicon (111) channel-cut double-crystal monochromator.The energy resolution is 3×10−4 between 7
and 10 keV.
• A motorized computer-controlled set of vertical and horizontal slits to limit the beam size, before and
after the monochromator.
• A ionization chamber to measure the primary beam intensity.
• A Si(Li) solid state detector, with a resolution of 165 eV at 5.9 keV.
• The samples were mounted in a vacuum chamber with a sample holder at 10−2 Torr in a standard
geometrical configuration of 45◦ of incident and take-off angles.
Storage Ring
Synchrotron
RadiationIncident
Beam
Sample
Holder
First
Slits
X-Ray Eye
Monochromator
Second
Slits
Solid State
Detector
Héctor Jorge Sánchez
Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in
Nano-science and Environmental Monitoring - 17 November - 28 November 2014
7000 7500 8000 8500 9000 9500 10000
0
200
400
600
800
1000
1200
Inte
nsity
(a.u
.)
Energy [eV]
KL-RRS spectrum of Zn obtained with incident energy of
9594 eV. Solid lines represent the data fitting of each peak.
Sánchez, H.J. et al. J Phys B: At Mol Opt Pys 2006; 39: 1-11h
LNLS,
D09B Beamline
Channel Cut
monochromator.
Si(Li) Detector
Héctor Jorge Sánchez
Joint ICTP-IAEA School on Novel Experimental Methodologies for Synchrotron Radiation Applications in
Nano-science and Environmental Monitoring - 17 November - 28 November 2014