scecal progress report tohru takeshita (shinshu) _desy beam test summary _improvements for fnal bt...
TRANSCRIPT
![Page 1: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/1.jpg)
SCECALprogress report
Tohru Takeshita (Shinshu)
_DESY Beam Test summary_improvements for FNAL BT_FNAL module_current status at Fermilab
![Page 2: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/2.jpg)
small prototypeat DESY
•9x2 strips / layer x 26 (468ch)•1cm x 4.5cm x 0.3cm strip•fibre in a hole•without fibre•MPPC read out
9cm
9cm
MPPC
calice08-TT
![Page 3: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/3.jpg)
results at DESY•3 detector configurations
strip uniformity light X-talk Mega good 10%
direct r/o extruded need study good
MPPC
45mm 0mm
calice08-TT
MIP
ped.
opt. xtalk.
Mega
Kuraray
KNU
with fibre
without fibre
![Page 4: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/4.jpg)
extruded scintillator
•one of the mysteries
•significant non-uniformity
•due to TiO2 shield
•and mis-alignment of fibre and MPPC
MPPC
45mm 0mm
without TiO2
wrappedby reflector
calice08-TT
1mm0mmp.e.
uniform strip
![Page 5: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/5.jpg)
modified ext. scint.•without TiO2 shield
MPPC 1x1 mm2
fibre1 mmz
mega-stripextruded-strip
calice08-TT
![Page 6: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/6.jpg)
energy resolutiondetector center is a singular point
E (GeV)13% 5 3%
shower leakage
without saturation correction
calice08-TT all corrections
mega
extruded extruded
direct
![Page 7: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/7.jpg)
MPPC saturation•MPPC response saturates by big
amount of light input
•it exceeds the number of MPPC pixels =1600 due to quick recovery
2000p.e.
1000p.e.
LED blue light
no sign up to 6GeV
DESY1-6GeV
80 MPPCs
1-6 GeV
calice08-TT
linearity
![Page 8: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/8.jpg)
MPPC saturation •saturation correction
deposit E / strip
response -bigger at EM shower central -energy distribution will be wider than that measured(central part will shift, howeverothers remain)
shape of the curve depends on the electronics (integration
time,,,)
calice08-TT
![Page 9: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/9.jpg)
linearity•saturation correction•improves linearity
before correction saturation corrected
without/with saturation correction
![Page 10: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/10.jpg)
energy resolutionwith/without saturation correction
saturation correction makes it worse, because of broadening the distribution
saturationcorrection
E (GeV)13.24% 5 3.65%:w/
E (GeV)13.38% 5 2.69%:w/ ocalice08-TT saturation correction
![Page 11: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/11.jpg)
EM shower shape•longitudinal and lateral • EM shower shape
longitudinal
layer #
lateral
x (cm)
x
calice08-TT
![Page 12: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/12.jpg)
EM shower width•in one dimension
x
calice08-TT
![Page 13: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/13.jpg)
simulation •non uniformity in a strip •Xtalk between neighboring strips•saturation effect
calice08-TT
megadirect
extruded
mega
color : data, black : MC
![Page 14: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/14.jpg)
simulation (cont.)
closed: dataopen:MC
calice08-TT
![Page 15: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/15.jpg)
scecal FNAL BT•x4 bigger ECAL than DESY : prototype
•18cm x 18cm x 30 layers (2160ch)
•extruded scintillators w/o TiO2 shield
•precise positioning of MPPC
•monitoring system
•moved mid August
•started DAQ
CALICESc-ECAL at Fermilab tungsten
3.5mmt
scintillator
3mmt
2000ch
MPPC
calice08-TT
![Page 16: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/16.jpg)
extruded scintillatorhole size and location > precise positioning by selection
flip
Entries 69Mean 4.833RMS 0.0479
Entries 69Mean 5.247RMS 0.0567
5.2
47
4.8
33
hole size
hole location
calice08-TT
1mm
![Page 17: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/17.jpg)
construction of scecalscintillator
fiber
reflector
frame
read out flat cable
cover
calice08-TT
MPPC
reflector
scintillatorfiber
reflector
MPPCfixed by reflector
![Page 18: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/18.jpg)
pre-test results•light output by source
calice08-TTDistance from MPPC (mm)
Three samples
num
ber
of
p.e
x x x MPPC
p.e.
![Page 19: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/19.jpg)
μ
relative position•MPPC and fibre•required precision : within 0.1mm•in transverse / longitudinal direction
m
p.e. p.e. longitudinaltransverse
1mm
1mm
![Page 20: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/20.jpg)
MPPC •2000 MPPC new : May 2008•160 old : Dec 2006•tested , they all Ok for the detector
Vbreakdown (V)
new
oldold
serial numberby Hamamatsu
new
Vb(V)
some are missing
![Page 21: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/21.jpg)
prototype scecal•structure W 3.5mm scint. 3mm
18 x 4 lows
tungsten
scintillator strip
![Page 22: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/22.jpg)
monitoring systemlight injection through clear fiber with
notches
Optical fiber0.2mm deep notch 0.4mm deep notchLED
scintillator strips
0.4mm deep
VCALIB:150
p.e. 0.2mm deep
VCALIB:255
p.e.
strip #
holes
holesOptical fiber
![Page 23: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/23.jpg)
FNAL BT purpose
•test at High energy : MPPC saturation effect
•verify monitoring system
•pi-zero reconstruction
•put an Iron target of 8cm
•0.1% of triggers at high E r+ by MC
r+r+n 7 pr0
![Page 24: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/24.jpg)
at FNAL•construction
•test
•assembly
![Page 25: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/25.jpg)
at FNAL (cont.)
•pedestals
•LED run
•MIP calibration by muon
•electron
•pion/proton
![Page 26: SCECAL progress report Tohru Takeshita (Shinshu) _DESY Beam Test summary _improvements for FNAL BT _FNAL module _current status at Fermilab](https://reader036.vdocuments.us/reader036/viewer/2022081515/5697bfee1a28abf838cb986a/html5/thumbnails/26.jpg)
calice08-TTcalice08-TT