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ASICFPGA GEM
KEK A
B C
D E
AEADCAAAB
BAA
ASICFPGA
GEM
X
0.8mm
GEM
~30cm
Pre-amps.16chs x 8
NIM modules
CAMAC modulesGEM10cm x 10cm
!
X:64chs Y:64chs All:128chs
ASICFPGA
150mm
510mm
GEM
I/F HV-
1
LV-
5 Ethernet 1
ASIC4 FPGA
FE2006 ASIC
Ethernet
Ethernet
Ethernet1
Ethernet HUB
PC
(TCP)
(UDP)
GEM
ASIC
I/FFE2006
DAC
64
110mm320mm
FPGA
ASIC
64
64
64
64
64
ASIC
64
64
ASIC
64
(LVDS)
ASIC
256 FE2006ASIC
256
100MHz
10nsec
SiTCP
DAC
Ethernet
ASIC FPGA
Chip
x32
VTH
VTH VTH Ethernet
(252Cf)
VTH
100-GEM
100-GEM
ED =1.5kV/cm
EI =6.3kV/cm
VGEM =570V
Drift:2.2mm
Induction:2mm
Pad:128
:64
FPGAASIC
VTH E
vent
s/60
sec
Pad Number
0
20
40
60
80
100
120
140
0 10 20 30 40 50 60 70
VTH
VTH
VTH
18mV
(@MUSASI)
MUSASI
Cd
Cd
2.24
100-GEMGain ~ 100
B-GEMGain
Gas: Ar-CO2 (70/30)Gas: Ar-CO2 (70/30)
B-Cathode1.2mB-GEM1.2m
ED =1.5kV/cm
ET =1.5kV/cm
EI =6.3kV/cmVGEM =560V
(100GEM90)
VGEM =220V(B-GEM)ET =1.5kV/cm
ET =1.5kV/cm
ET =1.5kV/cm
1.2mm
1.4mm
1.4mm
1.4mm
2.0mm
1.4mm
B-Cathode
30%(3He 100%)
KEK
1.6mm
0.8mm
10mmCd
!!
XY
?
0
500
1000
1500
2000
2500
0 20 40 60 80 100 120
X
Y
Coincidence
[nsec]
10nsec
92%
0.09%
FPGA
PC
FE2006
ASIC
GND
!!
ASIC
(TCP)
DAQ
+5V, -5V, HV
Ethernet HUB
PC
(UDP)
ASIC
8
DAC
FE2006ASIC
x 4
VTH -Chip
FPGA
FPGASPI I/F
8chs/chip
8
64chs/board = 8chs/chip x 8Chips
FPGA
LVDS
ASIC
128200MHz
10nsec
SiTCP Ethernet
FPGADAC
FPGA
FPGA
ASICI/F
110mm320mm
464chs. x 4 = 256chs.
VTH VTH VTH -Chip VTH VTH -Ch VTH -Chip
DACFPGA
-500mV~+500mV VTH -Ch
ASIC
-31mV~-0mV
FPGA
XYCoincidence
0
500
1000
1500
2000
2500
0 20 40 60 80 100 120
X
Y
C
Y10nsec
0
5000
10000
15000
20000
25000
0 20 40 60 80 100
Coincidence
Noize
FE20062.5V ASIC
GND
-2.5V(100uF)
GND2.5V(100uF)
2.5V
GND
NEW
Old ASIC board New ASIC board
ASICFPGAGEM ASICFPGAASICVTHVTHVTH(@MUSASI)KEKDAQASICFPGAFPGAVTH 30 312.5VGND 38NEW 40