mrpc-multigap resistive plate chamber for leps2 detector
TRANSCRIPT
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
1/31
DEVELOPMENT OF MRPC-MULTIGAPRESISTIVE PLATE CHAMBER AS TOF
DETECTOR FOR LEPS2 EXPERIMENT
Tran Hai Nam
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
2/31
Photon
Electron
Muon Tau lepton
Neutrino
Charge hadron
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
3/31
Charge hadron (, K, p)
=
can be determined by the tracking system
can be determined by one of the followingcommon methods:
- Time of Flight (TOP)
-
lo
- Transition radiation
- Cherenkov radiation
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
4/31
Charge hadron (, K, p)
=
can be determined by the tracking system
can be determined by one of the followingcommon methods:
- Time of Flight (TOP)
-
lo
- Transition radiation
- Cherenkov radiation
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
5/31
Particle ID RPC Read-out electronic results
Charge hadron (, K, p)
=
can be determined by the tracking system
can be determined by one of the followingcommon methods:
- Time of Flight (TOF)
-
lo
- Transition radiation
- Cherenkov radiation
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
6/31
RPC is a gas ionization chamber
- Electron move to Anode, positive ion
move to Cathode
- Avalanche or streamer operation mode
- Filling gas
Electronegative gasIonized gas
Quencher
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
7/31
RPC is a gas ionization chamber
- Electron move to Anode, positive ion
move to Cathode
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
8/31
RPC is a gas ionization chamber
- Electron move to Anode, positive ion
move to Cathode
- Operation mode of ionization chamber
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
9/31
RPC is a gas ionization chamber
- Electron move to Anode, positive ion
move to Cathode
- Operation mode of ionization chamber
- Filling gas
Electronegative gasIonized gas
Quencher
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
10/31
Resistive Plate Chamber (RPC)
- Single-gap or multi-gap RPC
- Operation modes of RPC- Filling gas of RPC
- Application of RPC
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
11/31
Resistive Plate Chamber (RPC)
- Single-gap or multi-gap RPC
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
12/31
Resistive Plate Chamber (RPC)
- Single-gap or multi-gap RPC
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
13/31
Resistive Plate Chamber (RPC)
- Single-gap or multi-gap RPC
- Operation modes of RPC
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
14/31
Resistive Plate Chamber (RPC)
- Single-gap or multi-gap RPC
- Operation modes of RPC
- Filling gas of RPC
Freon () as electronegative gas
iso-butance () as quencher
be added to reduce among the ofcharge
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
15/31
Resistive Plate Chamber (RPC)
- Single-gap or multi-gap RPC
- Operation modes of RPC
- Filling gas of RPC
- Application of RPC
Used as trigger detector
Timing detector
Medical imaging
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
16/31
Resistive Plate Chamber (RPC)
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
17/31
BL33 beam line
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
18/31
Read-out electronic of RPC
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
19/31
Read-out electronic of RPC
- Amplifier
PMT amplifierChus amplifier
HADES amplifier
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
20/31
Read-out electronic of RPC
- Amplifier
- Discriminator
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
21/31
Read-out electronic of RPC
- Amplifier
- Discriminator- ADC (Analog to Digital Converter)
- TDC (Time to Digital Converter)
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
22/31
Read-out electronic of RPC
- Amplifier
- Discriminator- ADC (Analog to Digital Converter)
- TDC (Time to Digital Converter)
Particle ID RPC Read-out electronic results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
23/31
LEPS 2 requirement
Time resolution : 99%
Num. of channel:
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
24/31
High Voltage dependence
Trigger rate dependence
Gap width Number of Gap
read-out (pad or strip)
Amplifier
Particle ID RPC Read-out electronic Results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
25/31
High Voltage dependence
Trigger rate dependence
Gap width Number of Gap
read-out (pad or strip)
Gas mixture
Particle ID RPC Read-out electronic Results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
26/31
High Voltage dependence
Trigger rate dependence
Gap width Number of Gap
read-out (pad or strip)
Gas mixture
Particle ID RPC Read-out electronic Results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
27/31
High Voltage dependence
Trigger rate dependence
Gap width Number of Gap
read-out (pad or strip)
Gas mixture
Particle ID RPC Read-out electronic Results
104 7 gaps 2 stacks
148 6 gaps 2 stacks
260 5 gaps 2 stacks
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
28/31
High Voltage dependence
Trigger rate dependence
Gap width Number of Gap
read-out (pad or strip)
Amplifier
Particle ID RPC Read-out electronic Results
Num. of gap HV/gap (kV) Efficiency (%)
[experiment]
Efficiency (%)
[calculation]
Time Resolution (ps)
[experiment]
1
2
5
10
3.6
3.0
2.8
2.6
70.130.99
92.900.55
99.130.20
99.630.13
none
93
99.7
99.9
103.114.83
74.202.46
60.251.80
54.141.52
1 1
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
29/31
High Voltage dependence
Trigger rate dependence
Gap width Number of Gap
read-out (pad or strip)
Amplifier
Particle ID RPC Read-out electronic Results
Num. of Chan. HV (kV) Eff. (%) Time Res. (ps)MRPC1 : 148 m 2 stacks 6 gapsS : 1.5 5.5 cm2 7000 12 99.70.3 503L1 : 2.5 20 cm2 2000 12 92.80.4 622L2 : 1.5 40 cm2 2000 12 96.40.3 613L3 : 2.5 40 cm2 1000 12 90.40.5 632MRPC2 : 260 m 2 stacks 5 gapsS : 1.5 5.5 cm2 7000 14 99.50.2 503L1 : 2.5 20 cm2 2000 14 99.20.2 562L2 : 1.5 40 cm
22000
14
98.40.3
643
L3 : 2.5 40 cm2 1000 14 99.50.2 612MRPC3 : 260 m 2 stacks 5 gapsL4 : 2.5 100 cm2 400 14 98.80.3 623
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
30/31
High Voltage dependence
Trigger rate dependence
Gap width Number of Gap
read-out (pad or strip)
Amplifier
Particle ID RPC Read-out electronic Results
-
7/30/2019 MRPC-Multigap Resistive Plate Chamber for LEPS2 Detector
31/31
Particle ID RPC Read-out electronic Results
Detector HARP ALICE STAR FOPI HADES Our MRPCNum. of gap 4 10 6 6 4 10Gap size (mm) 0.3 0.25 0.22 0.3 0.3 0.26Gas[Freon/SF6/C4H10] 90/5/5 90/5/5 95/0/5 80/15/5 98.5/1/0.5 90/5/5Read-out size () 10.622 2.5 3.7 (pad) 3.16.3 (strip) 4.6 90 (strip) 2 60 (strip) 2.5 100(strip)Detector size 20 150 60 5 8 5Num. of Channel 400 160,000 30,000 5,000 2,000 400HV/gap () 3.0 2.4 3.35 3.3 3.2 2.8Efficiency (%) 99% 99.9% 95-97% 97% >95% >99%Plateau length (/) 0.3 2 0.5 0.6 >0.2 0.6 - 90ps 120ps - 100ps 60ps(After Slewing correction) 150ps 40-50ps