Belle II (SVD)
Kavli IPMU(WPI)
[email protected] / [email protected] 2016 8 19
1
Belle II 1
2 PiXel Detector
(PXD) 4 Silicon Vertex Detector
(SVD) 2 6 [1] Belle II SVD Belle
SVD
2016 4
2 Belle II
Belle II
Belle Belle II
2 SVD
15μm
SVD DSSD (Double-Sided Silicon
Detector) DSSD
2
Belle II n
z p
2 n
pin
n p
3 6
3 SVD
(1,2) PXD (3,4,5,6) SVD
1 Belle II PXD SVD
( ) PXD ( ) SVD
PXD SVD
2 DSSD
PXD
2 SVD 4
SVD 3 small
rectangular large rectangular trapezoidal
PXD 3
4 6
Micron
1 3
1
Belle PXD
strip SVD SVD
SVD1 [2] SVD2 [3]
SVD1 3
60.5mm 365mm
23°< < 139° SVD2 4
88.0mm 662mm
SVD1
SVD2
SVD1 20
17°< < 150°
Belle II SVD
4
7 10 12 16
17°< < 150° Belle SVD
135mm Belle
3 350mm
509mm 629mm 749mm SVD 4 5 6
5 DSSD (AIREX)
APV25[4] ASIC
1 SVD
4 SVD
5: DSSD
2011
APV25 APV25
APV25 DSSD (p-side)
6
DSSD (n-side) APV25
(chip on sensor)
2
Belle II SVD APV25
LHC CMS Belle II SVD
APV25 300μm 100μm
APV25 (50
ns) (>1MGy) 192
APV25 VME 9U
48 ADC(FADC) FADC
FADC FADC (FTB) COPPER (COmmon Pipeline Platform for Electronics Readout)
COPPER LinuxOS
Belle II SVD
INFN Pisa
3 5 Melbourne
TIFR HEPHY
6
Kavli IPMU 4
SVD
SVD
3
100μm 200μm
20 50μm
APV25
6: DSSD
(p-side) DSSD
APV25
p-side p-side
n-side
APV25
DSSD
10μm
7 APV25
8 APV25
7mm×8mm 64×2
APV25 64
2 3
30μm
APV25
APV25
Belle II SVD
APV25
(p-side)
(p-side) (n-side)
APV25 (n-side)
APV25
p-side APV25
1mm
(p-side)
4 F
3
6 7: APV25
APV25
8: 3
3
APV25
9
50μm 80cm
( )
10μA
6 90
APV25 APV25
99%
KEK Belle II
Belle II SVD
2016 3
2
PXD 4 DESY
99%
2016 4
SVD
2017
SVD PXD
2018
2018 Belle II
2018
[1] K. Adamczyk et al. [Belle II SVD collaboration], Nucl.
Instrum. Meth. A 824, 406 (2016).
[2] A. Abashian et al. [The Belle Collaboration], Nucl.
Instrum. Meth. A 479, 117 (2002).
[3] H. Aihara et al., Nucl. Instrum. Meth. A 568, 269 (2006).
[4] M. French et al., Nucl. Instrum. Meth. A 466, 359 (2001).
9: 6 F
x y z ( μm)
x
z y
y
