2009/1/15*
Outlinem-PIC
Small-angle X-ray scattering (SAXS)
X(Spring-8)
2009/1/15*
2009/1/15*m-PIC30 cm
2009/1/15*micro-Pixel Chamber(m-PIC)2X*10cmm-PIC 10cm10cm (512ch), 30cm30cm(1536ch)
GEM(gas electron multiplier) gain 310 m-PIC gain 1,0005,000
X100 mm (93 % @ 8 keV)pixel pitch 400 m
2009/1/15*DAQ100 MHzASD : m-PICchargedigital: anode, cathodedigital (X, T) (Y, T)
2009/1/15*m-PICm-PICXe 70% C2H6 30% 1 atm1 mmX 12 kVX10 Mcps /mm2
20Hz5 MHz
5
2009/1/15*X
X2009/1/15* ABTX
2009/1/15*X
1-100 nm X 0.8 8
()SiO2 X
2009/1/15*q-2 q-2 q-1 q-4 Porod (S/V)q-4
X
Imaging plate (IP), CsI(Na)+CCD
CCD : 103-4 IP : 105-6
*2009/1/15
2009/1/15*photon
2009/1/15*Camera length 0.63.5mbeamtargetBL45-XU1012 photons/s( : 1 mm 0.8 mm)KEK-PF1000
2009/1/15*X0.9 (13.8 keV)106 events105events104events
2009/1/15*() = () - ()Counting rate
2009/1/15*Apo-Ferritin8 keV (1.5) 470 s () Imaging plate
2009/1/15*
2009/1/15*ASD : m-PICchargedigital100 MHz
2009/1/15*500 mm8 keV (1.5 )32 mm
= 93.6 mm
=157.9 mm ()
2009/1/15*8 keV (1.5 )
X
Global counting rate 5
: Imaging plate
: 6
s = 93.6 mm imaging plate (pixel size 100 mm) 2009/1/15*X
2009/1/15*JRR-3 NOP
2009/1/15*J-PARC
20089JRR-3 NOP7.6
Ar 80%, C2H6 9%, 3He 11%10cm10cm0.4cm
gas gain < 1000
proton (765 keV)+triton (191 keV)
2009/1/15*8Cdr = 4 mmError functionfit1.0 mm
m-PIC 1 mmBragg peak
5cm, (Ar-C2H6) 70%, 3He 30%, 2atm30%dE/dx2009/1/15*
2009/1/15* m-PIC
X ( : COMPASS GEM50)
106
1 s = 93.6 mm
1 mm
Future work
2 MHz10 MHz
X24%@8keV 2-3 30% 5 cm, 2 atm
(10 cm10 cm 30 cm30 cm)2009/1/15*
2009/1/15*backup
2009/1/15*X = r(r)
2009/1/15*CCDCsI(Na)Imaging plateCCDBaF(Br, I):E2+XPMTX
PILATUS (CMOS)X 106 > 106 dead time 2 ms, framing rate 10-100 Hz2009/1/15*172 mm
MWPC high counting rate
RAPID, 800 mm
MSGC(200 mm), m-PIC(400 mm) *
(2) < ( = )
photon
ADC
MSGC: 200 mm 90 mm RAPID: 800 mm 375 mm2009/1/15*
2009/1/15*Micro Strip Gas Chamber (MSGC) : 6
*SetupPrinted circuitboard
X100 mm
1 atm2009/1/1530 cm
2009/1/15*ASD : m-PICchargedigital: anode, cathodedigital10 ns (= 1 clock)(X, Y, T)DAQ
2009/1/15*0.9 (13.8 keV)10 cmCCD < 1% < 1
2009/1/15*Counting Rate (local)X (Ka 17.4 keV)
10 Mcps/mm2
PILATUS() : 15 MHz/mm50 MHz/mm
RAPID () : 1 MHz/mm
Counting Rate (global)2009/1/15*20Hz5MHz(5)5MHz Saturationcounting rate1.038Error0.7%Spring-8 BL45XUX13.8 keV
2009/1/15*10 cm10 cmX8 keV (110 nm, 5 mg / ml)X: 8 keV10 cm
2009/1/15*Accidental coincidence2 MHz120 kHz1 M photons /sAccidental coincidenceAu nano particle0.9 (13.8 keV)
2009/1/15*Counting losstime walk1 clock (= 10 ns)anodecathodecathodeanode
*UniformityMode-Ianodecathodecoincidence1 photon 0-2 hitsMode-IIphotongainApo-Ferritin 8 keV (1.5)
2009/1/15*Pile-up cutMode-II()SiO2 8 keV (1.5 )200 nsphoton
q-4
2009/1/15*Dynamic rangeMode-I (coincidence)SiO2 8 keV (1.5) () 150 s
2009/1/15* (mode-III)ASD : m-PICchargedigital100 MHz
2009/1/15*
2009/1/15*ttanodescathodes
2009/1/15*aginggainX CO2signal-to-noise ratiothreshold
2009/1/15*0 1.95 3.90 6.50 7 sec
Spring-8KEK Photon Factory 0.7
2009/1/15*Small-angle neutron scattering (SANS)X1 nm 1 mm
X
Z
:
Coherentcross sectionX
2009/1/15*LiOMnLiOT. Kamiyama, et al.N. Niimura, et al.
(1)* J-PARChigh counting rate Time-of-flight (TOF)
2009/1/15*
1 msTOF ( 1 ms)
(107)
< 1 mm (2-3 mm) 2 (2)
X-ray Crystal Structure Analysis with -PIC
2009/1/15*1010cm2mPICX-ray generator at laboratory Dec. 2003 @ Tokyo-TechTakeda et al.J. Synchrotron Rad. (2005)12, 820-825Continuous Rotation Photograph Method
-PIC(30cm30cm)2009/1/15*30cm-PIC-PIC(GEM)30cmASD-PIC24cmFirst image of 30cm -PICX13.8 keV
20010cmPIC2degreeNumber of event2009/1/15*
2009/1/15**0 sec1.95 sec3.90 sec6.50 secThe intensity I(2, t) is expressed as I = xId (2)+ (1-x)Ih (2),where Id (2), Ih (2) is the intensity of the dehydrate, the hydrate, respectively, including a background4.3104 events / 0.65 secTime resolution will be expected to about 4 msec with a count rate of 10MHz
2009/1/15*Accidental coincidenceMode-II()SiO2 8 keV (1.5 )1 M photons /sAccidental coincidence
2009/1/15*Contrast Match Method
2009/1/15*F12H20Bragg peak q=1.02 / nm
m-PIC ZnS/6LiF
m-PICBragg peak
2009/1/15*micro-TPC (m-PIC)MeV1photon
2009/1/15*(40%)137Cs22Na133Ba137Cs (662 keV)22Na (551 keV)133Ba (356 keV)
TPC-modeII 2009/1/15*AnodecathodecoincidenceHit2
2009/1/15* (mode-III)100 MHz
2009/1/15*tt()()anodescathodes
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