CEPC Time of Flight and Outer Tracker Design
CEPC
Time of flight and outer
tracker with
LGAD
Yunyun
Fan
Tuesday, July
9
, 2024
Mechanics
design
•
Try
to
simulate
the
two
kinds
method
of
cooling
method
Based
the
conservative
e
stimated
power
distribution
of
electronics
design
Power
distribution
：
1.71
W/cm
2
–
2.56
W/cm
2
Dimension of
ASIC
array
：
15mm
x
140
mm
Electronics
•
Updated
background
simulation
results
of
the
background
at
z
pole
Decreased
from
100kHz/cm
2
to
15kHz/cm
2
To
be
optimized
since
the
power consumption is relatively high
Cluster
size
：
2-3
strip
Occupancy
at
endcap
：
0.105% (10bit,1 µs deadtime)
0.
42
% (12 bit, 4
µs deadtime
)
Maximum
hit
rate
estimation
H
ighest hit rate
•
Backup
TOF
Physics
data
rate
estimation
•
Background
dominated
the
endcap
region
•
Need
to
updated
with
new
version
of
CEPCSW
From
Gang
Li
Conservative
estimation
of
p
ower
distribution
for
barrel
•
ASIC
dimension
：
10
mm
x
15
mm
，
Module
：
140
mm
x
160
mm
Power
distribution
per
module
（
single
readout
）：
5.12
W/cm
2
–
7.68
W/cm
2
Power
distribution
：
1.71
W/cm
2
–
2.56
W/cm
2
Dimension of
ASIC
array
：
15mm
x
140
mm
Mechanics and electronics design considerations for the CEPC Time of Flight and Outer Tracker, focusing on cooling methods, power distribution, background simulation results, and physics data rate estimations. The content includes conservative estimations of power distribution, module dimensions, hit rate estimations, and the impact of background radiation on detector performance.
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Presentation Transcript
CEPC Time of flight and outer tracker with LGAD Yunyun Fan Tuesday, July 9, 2024 1 Yunyun Fan, IHEP Yunyun Fan
Mechanics design Try to simulate the two kinds method of cooling method Based the conservative estimated power distribution of electronics design Per channel Per ASIC Per module 28 ASIC Pwer distribution 20 mW-30 mW 2.56 W 3.84 w 71.68 W- 107.52 W Module 140mm x 160mm 140 mm Power distribution 1.71 W/cm2 2.56 W/cm2 Dimension of ASIC array 15mm x 140 mm 15mm 2 Yunyun Fan, IHEP
Electronics Updated background simulation results of the background at z pole Decreased from 100kHz/cm2to 15kHz/cm2 To be optimized since the power consumption is relatively high Maximum hit rate estimation Hit rate Hz/cm2 Hit rate per ASIC Hz Hit rate per strip Hz Barrel 140 1254.4 9.8 15k at 20mm 134.4k 1050 Endcap Highest hit rate Cluster size 2-3 strip Occupancy at endcap 0.105% (10bit,1 s deadtime) 0.42% (12 bit, 4 s deadtime) 3 Yunyun Fan, IHEP
Backup 4 Yunyun Fan, IHEP
TOF Physics data rate estimation Background dominated the endcap region Need to updated with new version of CEPCSW From Gang Li Barrel (Hz/cm2) Endcap (Hz/cm2) Physics (Z pole) 80 30 Pair production 100 ~100k 5 Yunyun Fan, IHEP
6 Yunyun Fan, IHEP
7 Yunyun Fan, IHEP
Conservative estimation of power distribution for barrel ASIC dimension 10 mm x 15 mm Module 140 mm x 160 mm Per channel Per ASIC Per module 28 ASIC Per area inside the ASIC array 1.71 W/cm2 2.56 W/cm2 Pwer distribution 20 mW-30 mW 2.56 W 3.84 w 71.68 W- 107.52 W Power distribution per module single readout 5.12 W/cm2 7.68 W/cm2 Module 140mm x 160mm 140 mm Power distribution 1.71 W/cm2 2.56 W/cm2 Dimension of ASIC array 15mm x 140 mm 15mm 8 Yunyun Fan, IHEP
9 Yunyun Fan, IHEP
