svd summary
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SVD Summary. 7 th B2GM. SVD Summary. Agenda. Please look at slides for details. SVD Mechanics. 7 th BG2M. SVD Mechanics. Service Ways. CAD study to show if service space is available Almost straight cable paths are possible Study shows that there is still space left. Ribbon Cables. - PowerPoint PPT PresentationTRANSCRIPT
7th B2GM
SVD Summary
19 November 2010
Markus Friedl (HEPHY Vienna)
Agenda
19 November 2010 Markus Friedl (HEPHY Vienna) 2
SVD Summary
Please look at slides for details.
7th BG2M
SVD Mechanics
18 November 2010
Immanuel Gfall (HEPHY Vienna)
Service Ways
18 November 2010 Immanuel Gfall (HEPHY Vienna) 4
Ribbon Cables
• CAD study to show if service space is available• Almost straight cable paths are possible• Study shows that there is still space left
SVD Mechanics
Support Assembly
• Built around beam pipe• SVD support structure is split into halves• Beam mask needs to be split as well
18 November 2010 Immanuel Gfall (HEPHY Vienna) 5
Beam Mask
End Rings
Support Cone
Patch Panel Space
SVD Mechanics
Cooling: CO2 Blow System
18 November 2010 Immanuel Gfall (HEPHY Vienna) 6
T= 23°CP=57bar
T> -20°CP=57bar
T= -20°CP=20bar
T= -20°CP=20bar
T= -20°CP=20bar
SVD Mechanics
SVD Readout ElectronicsMarkus Friedl (HEPHY Vienna)
Location of FADCs & Power Supplies
• At side of KLM• Accessible during running• Alternatively on top of KLM
(but then locked)
Ideally here1 rack on each side (forward, backward)
+ power supplies
18 November 2010 Markus Friedl (HEPHY Vienna) 8
Gamma Irradiation (3-5 October 2010)
• SCK-CEN @ Mol (Belgium)
• 1.25MCi (all rods) 60Co source () under water
• 3.4 MRad (water) per hour at peak position
• Performed in the middle of beam test @ SPS (CERN)
18 November 2010 Markus Friedl (HEPHY Vienna) 9
SVD Readout Electronics
Parts for Irradiation
18 November 2010 Markus Friedl (HEPHY Vienna) 10
Origami module
Micron trapezoidal module
Micron baby modules
Electronics
SVD Readout Electronics
Irradiation Summary w.r.t. Electronics
• Voltage Regulator (LHC4913) – Literature says it withstands 100MRad, confirmed to 70MRad– Perfectly fits our needs
• Humidity Sensor (SHT21) – Not radiation hard– Radiation tolerant sensors used in LHC are not available
anymore (company disappeared)– CERN people try different concept with cooled mirror
(condensation) and reflectivity measurement– I am afraid this will not be too bulky to install in Belle II SVD– Presently, I can only think of humidity measurements outside the
radiation area (=dry air blown in and sucked out of SVD volume)
18 November 2010 Markus Friedl (HEPHY Vienna) 11
SVD Readout Electronics
SVD Finesse Transmitter Board (FTB) (Sender Part for HSD Link)
18.11.20106 slides
18.11.2010 wacek ostrowicz
Version 12For SVD session of VII B2GM (17-20.11.2010)
SVD Finesse Transmitter Board (FTB) (Sender Part for HSD Link)
18.11.2010 wacek ostrowicz 2/6
General view – 40 sets of two boards
PIXEL
DA
Q
Giessen Box
op
t op
t
F
E
E
l e
c t
r o
n i
c s
TTD
RJ45
RJ45 #1
#81
#80RJ45…
RJ45 #2
CO
PP
ER
#40
opt FRB
CO
PP
ER
#2
opt FRB
CO
PP
ER
#1
opt FRB
…
#1 #40
FT
B#8
0
op
t
FADC#80
RJ45
RJ45
FT
B#
2
op
t
FADC#2
RJ45
RJ45
FT
B#1
op
t
FADC#1
RJ45
RJ45
SVD electronics
SV
D-C
ON
TR
OL
LE
R
(SV
Dct
lr)
FC
RB
RJ45
SVD tracker
SVD Finesse Transmitter Board (FTB) (Sender Part for HSD Link)
18.11.2010 wacek ostrowicz 5/6
SV
D
FIN
ES
SE
COPPER in Cracow
Prototype - tests setup
FPGASpartan6
RJ45
OpTr
DR
IVE
RS
PO
WE
R
OS
C42MHz
16
0 p
in c
on
ne
cto
r
ex
t P
OW
ER
Regs handl
DR
IVE
RS
Clo
ck
d
istr
ib
RJ45
RJ45
config
FPGASpartan6
RJ45
OpTr
DR
IVE
RS
PO
WE
R
OS
C
42MHz
16
0 p
in c
on
ne
cto
r
ex
t P
OW
ER
Regs handl
DR
IVE
RS
Clo
ck
d
istr
ib
RJ45
RJ45
config
FT
B p
roto
type
– F
INE
SS
E
adap
ter
SV
D
FIN
ES
SE
First results of the beam testat SPS 2010
C. Irmler, M. Valentan (HEPHY Vienna)
The devices under test
Origami 6” module
Micron Wedge module Micron Baby module
Pitch p, n # strips p, n interm. Strip p,n p-stop ThicknessOrigami 75, 240 768, 512 yes, yes atoll 320
Wedge sensor 50-75, 240 768, 512 yes, yes combined 304Baby sensor 50, 100 512, 256 yes, no 3 different 304
First Beam Test Results
18 November 2010 C. Irmler, M. Valentan (HEPHY Vienna) 16
Origami module performance
si gnal [e]0 10000 20000 30000 40000 50000 60000 70000 80000 90000
en
trie
s [
]
0
2000
4000
6000
8000
10000
Origami6_mod2_p (Orgami6_2) - Signal siC19Entries 129690Mean 2.639e+04RMS 1.069e+04
clw peak [e ] FWHMentries 1 24142.5 39.2 40176 2 20519.4 38.6 67046 3+ 25983.2 66.1 22468
avg. peak = 22588.4
Origami6_mod2_p (Orgami6_2) - Signal
SNR []0 10 20 30 40 50 60
en
trie
s [
]
0
2000
4000
6000
8000
10000
12000
Origami6_mod2_p (Orgami6_2) - SNR snr19Entries 129690Mean 16.17RMS 5 .976
clw peak FWHM entries 1 19.0 47.2 40176 2 11.6 42.7 67046 3+ 12.0 65.5 22468
avg. SNR = 14.0
Origami6_mod2_p (Orgami6_2) - SNR
Signal and SNR of Origami #2, p-side, -10 °C
First Beam Test Results
18 November 2010 C. Irmler, M. Valentan (HEPHY Vienna) 17
Origami Cooling
• cooling of APV chip surface • used adapted APV settings for subzero cooling • coolant: water with glycol anti-freeze• best performance @ -10 deg. C
SNR vs. temperature
5.007.009.00
11.0013.0015.0017.0019.0021.0023.0025.00
-10 deg 15 deg uncooled (~70 deg)Temperature
Sign
al to
noi
se ra
tio
Origami 2 p
Origami 2 n
Cooling
First Beam Test Results
18 November 2010 C. Irmler, M. Valentan (HEPHY Vienna) 18
First results, SNR
• References [1] and [2] favor combined pattern• Worst option according to our measurements!
[1] IEEE Transactions On Nuclear Science 45 (1998) 303-309 - Iwata et.al. - Optimal P-Stop Pattern for the N-Side Strip Isolation of Silicon Microstrip Detectors[2] IEEE Transactions On Nuclear Science 45 (1998) 401-405 - Unno et.al. - Evaluation of P-stop Structures in the N-side of N-on-N Silicon Strip Detector
First Beam Test Results
18 November 2010 C. Irmler, M. Valentan (HEPHY Vienna) 19
21
SVD material budget
22
pT = .1 to .2 GeVCellular automaton algorithm
23
SVD: Straight vs. SlantedMarkus Friedl (HEPHY Vienna)
Items from Ushiroda-san’s List
• Performance– See next presentation by Zbynek
• Cost– Barrel needs +31 sensors ( +150k€), +310 APV25 chips &
additional FADCs ( +150k€), FTBs, Copper boards,… – Total +400k€
• Service Space, Mechanical Feasibility– No problem (see Immanuel‘s talk on mechanics)
• Beam Masks– Not affected at important location (close to IP)
18 November 2010 Markus Friedl (HEPHY Vienna) 28
SVD: Straight vs. Slanted
How to Proceed?
• 1. Let’s see Zbynek’s results• 2. Let’s start discussion• Decision may be deferred to Cracow meeting (13/14
December 2010)
There was a discussion including tracking & alignment.
Then the decision was taken in favor of slanted option.
18 November 2010 Markus Friedl (HEPHY Vienna) 29
18 November 2010 C. Irmler, M. Valentan (HEPHY Vienna) 33
First beam test results