TOF FRS Update

Current TOF Update Status

S2-Scintillator Ladder

S2 is a main TOF-Station.
HAMAMATSU H10580 PMT with Umax=-1500 V, Average anode current Imax=0.1 mA was installed at February 5, 2020


Detector Material Size (width*height) [mm*mm] Thickness [mm] Installation[mm]
SCI21 L,R BC420 220*100 5.01 October 1, 2020
SCI21 L,R EJ-230 220*45 5.09 October 1, 2020
SCI21 L,R Ej-230 220*45 5.09 October 1, 2020
SCI21 L,R BC420 220*45 2.92 May 20, 2016
SCI21 L,R BC420 220*45 2.92 May 20, 2016
SCI21 L,R Ej-230 220*45 1.04 October 1, 2020
SCI21 L,R Ej-230 220*45 1.04 October 1, 2020
SCI21 L,R BC420 220*45 0.53 May 20, 2016
SCI21 L,R BC420 220*45 0.53 May 20, 2016

PMT Installation:

SCI21 Window PMT Support PMT installation



Links:

PMT H10580
PMT H6533

Previously (20.05.2016) installed scintillators at S2-Ladder and used till 01.10.2020 :

Detector Material Size (width*height) [mm*mm] Thickness [mm] Installation[mm]
SCI21 L,R BC420 220*100 4.90 August 5, 2010
SCI21 L,R BC420 220*45 4.95 May 20, 2016
SCI21 L,R BC420 220*45 4.95 May 20, 2016
SCI21 L,R BC420 220*45 2.92 May 20, 2016
SCI21 L,R BC420 220*45 2.92 May 20, 2016
SCI21 L,R BC420 220*45 1.03 May 20, 2016
SCI21 L,R BC420 220*45 1.03 May 20, 2016
SCI21 L,R BC420 220*45 0.53 May 20, 2016
SCI21 L,R BC420 220*45 0.53 May 20, 2016

S3-Scintillator Ladder

Pos. Detector Material Size (width*height) [mm*mm] Thickness [mm] TS4ET4_S [mm] Installation[mm]
1. SCI31 Ej-230 220*45 1.0 513 January 18, 2022
2. SCI31 Ej-230 220*45 1.0 463 January 18, 2022
3. SCI31 Ej-230 220*45 5.0 401 January 18, 2022
4. SCI31 Ej-230 220*45 5.0 352 January 18, 2022
5. SCI31 Ej-230 220*100 5.7 265 January 18, 2022
6. SCI31 Ej-230 220*100 5.7 157 January 18, 2022
7. SCI31 Ej-230 220*100 5.7 with a 35 mm square hole on the right side 46.5 January 18, 2022

Previously (14.05.2020) installed scintillators at S3-Ladder and used till 17.01.2022 :

Pos. Detector Material Size (width*height) [mm*mm] Thickness [mm] Installation[mm]
1. SCI31 BC420 220*100 4.80 July 20, 2016
2. SCI31 Ej-230 220*45 5.0 May 14, 2020
3. SCI31 Ej-230 220*45 5.0 DAMAGED May 14, 2020
4. SCI31 BC 420 220*45 3.05 May 14, 2020
5. SCI31 BC 420 220*45 3.05 May 14, 2020
6. SCI31 Ej-230 220*45 0.95 May 14, 2020
7. SCI31 Ej-230 220*45 0.95 May 14, 2020
8. SCI31 BC400 220*45 0.52 July 20, 2006
9. SCI31 BC400 220*45 0.50 July 20, 2006

S4

There are three TOF-detectors at S4 focal plane:

SCI41L,R and SCI42L,R
H2431 PMT with Umax=-3500 V, Imax=0.61 mA.



SCI43L,R (new design!!!)
H6533=R4998 with Umax=-2500 V, Imax=0.36 mA was installed at February 5, 2020


Detector Material Size (width*height) [mm*mm] Thickness [mm] Readout PMT type [data sheet] Scint. changed PMT changed
SCI41 BC420 220*100 1.0 L,R H2431=R2083 Feb.23, 2021
SCI42 BC420 220*100 1.0 L,R H2431=R2083 Feb.23, 2021
SCI43 BC420 220*100 1.0 L,R H6533=R4998 Feb.26, 2020 Feb.26, 2020

New design of SCI43L,R (SCI41L,R (H6533 built in with Umax=-2500 V, Imax=0.36 mA) and SCI42L,R (H10580 built in with Umax=-1500 V, Imax=0.1 mA) are ready and lying on the table in Messhuette):

SCI4 inside SCI4 inside
PMT closed

S5-Scintillator Drive (GTS5DI2PS)

read out by 1 PMT
HAMAMATSU H2431 PMT with Umax=-3500 V, Imax=0.6 mA.

Detector Material Size (width*height) [mm*mm] Thickness [mm] TH4DI5_S position [mm] Installation[mm]
1 BC420 80*70 5.0 0.0 November 24, 2020
OUT -110.0

GTS5DI2PS

S8-Scintillator Ladder

SCI81L,R
HAMAMATSU H6533 PMT with Umax=-2500 V, Imax=0.36 mA. were built in at 25. January 2021

Pos. Detector Material Size (width*height) [mm*mm] Thickness [mm] TH4DI5_S position [mm] Installation[mm]
1. SCI81 BC420 220*100 5.0 14 Oktober 9, 2020
2. SCI81 BC420 220*100 1.04 124 Oktober 9, 2020
3. SCI81 BC420 220*100 2.75-3.03 234 May 15, 2018
4. SCI81 Ej-230 220*45 2.7 with cross slit 100x30mm, width=3mm 309 November 11, 2020
5. SCI81 Ej-230 220*45 5.0 350 Oktober 9, 2020
6. SCI81 Ej-230 220*45 1.04 415 Oktober 9, 2020
7. SCI81 Ej-230 220*45 1.04 460 Oktober 9, 2020

Previously (15.05.2018) installed scintillators at S8 Ladder and used till 09.10.2020 :

Pos. Detector Material Size (width*height) [mm*mm] Thickness [mm] TH4DI5_S position [mm] Installation[mm]
1. SCI81 BC420 220*100 4.7 14 15.08.2018
2. SCI81 BC420 220*100 2.58-2.75 124 15.05.2018
3. SCI81 BC420 220*100 2.75-3.03 234 15.05.2018
4. SCI81 BC-420 220*100 1.14-1.22 344 15.05.2018
5. SCI81 BC-420 220*100 1.15-1.2 454.0 15.02.2018
S8-Ladder S8-Pos.1 S8-Pos.5

S1-Scintillator pocket

S1 TOF-detector will be installed inside the pocket together with TPC. There are two scintillator plates (up, down) read out on both sides with two PMTs:
HAMAMATSU H10580 PMT with Umax=-1500 V and average anode current Imax=0.1 mA were equipped in November 2021




Pos. Plastic scintillator Scintillator thickness Scintillator size PMT Type Modification to PMT Modification to PMT
Up EJ-230Q 0.25% MBZ 5 mm 90 x 25 mm H10580 Blue sensitivity index >13 Fully active divider
Down EJ-230Q 0.25% MBZ 5 mm 90 x 25 mm H10580 Blue sensitivity index >13 Fully active divider

S1 Detector pocket S1 TOF

FRS TOF Update: what was planned to be done

SCI11 (4 PMTs)


Plastic scintillator Scintillator thickness Scintillator size PMT Type Modification to PMT Modification to PMT
EJ-230Q 0.25% MBZ 1.5 mm; 5 mm 75 x 45 mm H10580 Blue sensitivity index >13 Fully active divider

SCI21L,R; S2-Scintillator Ladder


Plastic scintillator Scintillator thickness Scintillator size PMT Type Modification to PMT Modification to PMT
EJ-230 1 mm; 5 mm 225 x 45 mm H10580 Blue sensitivity index >13 Fully active divider

SCI41LR, SCI42LR, SCI43LR


Plastic scintillator Scintillator thickness Scintillator size PMT Type Modification to PMT
EJ-230 1 mm; 5 mm 225 x 45 mm H6533 Blue sensitivity index >10

SCI81, S8-Scintillator Ladder


Plastic scintillator Scintillator thickness Scintillator size PMT Type Modification to PMT
EJ-230 1 mm; 5 mm 75 x 45 mm H6533 Blue sensitivity index >10

Spare PMTs


FAIR

Contact:
Natalia Kuzminchuk-Feuerstein
n.kuzminchuk@gsi.de
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