The Electronics Readout of the W/Quartz-fibre Calorimeter for the Luminosity Measurement in H1 .
SiPM – Readout of Barrel Calorimeter
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SiPM – Readout of Barrel Calorimeter • Geometry 4x4 array of 3x3mm SiPM tiles • Pixel size 50 mm, 57600 pixels per array • Detection Efficiency > 20% • Gain ~ 10 6 • Not sensitive to strong magnetic field • Noise ~ 20 MHz for full array • Total Number of SiPMs 3840 SiPM shows an excellent photon-counting capability and the pixels fired has a very linear dependence on the input light intensity. Individual photon peaks can also be clearly BCAL uses a Pb/SciFi matrix design to have both a compact size and a very good energy resolution. R in = 65 cm 25 cm Section View of BCAL The BCAL modules are coupled on both ends to arrays of Silicon Photon Multipliers (SiPM) with light guides. BCAL Module Light Guides SiPMs Light Collection of BCAL A 4x4 SiPM Array GlueX Detecto r BCAL Barrel Calorimeter Photon beam CDC Central Drift Chamber FDC Forward Drift Chambers Future Particle ID TOF Time-of-Flight Solenoid: 2.2 Tesla FCAL Forward Calorimeter A 390 cm long Electromagnetic Barrel Calorimeter (BCAL) is inserted into the solenoid which generates a 2.2 Tesla magnetic field to detect particles in large angles. It measures energy deposition between 50 MeV to 5 GeV and provides timing and position information. SiPM (Silicon Photo Multiplier) is a new type of photon- counting device made up of multiple APD (Avalanche PhotoDiode) pixels operating in Geiger mode. Each APD pixel outputs a pulse signal when it detects one photon, and the output of the SiPM is the total sum of all the pixels. 4x4 SiPM Arrays for BCAL 2 p.e. 1 p.e. 1 p.e. 2 p.e. Pulse Shape and ADC Spectrum of a 3x3 mm SiPM Tile Linearity of SiPM The SiPMs will be cooled to 5 o C to reduce the dark noise. Passive bias voltage compensation circuit will be used as well to further stabilize the gain. Cool the SiPMs
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SiPM – Readout of Barrel Calorimeter. GlueX Detector. Section View of BCAL. Light Collection of BCAL. CDC Central Drift Chamber. FDC Forward Drift Chambers. TOF Time-of-Flight. R in = 65 cm. Future Particle ID. BCAL Module. SiPMs. Photon beam. Light Guides. 25 cm. - PowerPoint PPT Presentation
Transcript of SiPM – Readout of Barrel Calorimeter
SiPM – Readout of Barrel Calorimeter
• Geometry 4x4 array of 3x3mm SiPM tiles• Pixel size 50 mm, 57600 pixels per array• Detection Efficiency > 20%• Gain ~ 106
• Not sensitive to strong magnetic field• Noise ~ 20 MHz for full array• Total Number of SiPMs 3840
SiPM shows an excellent photon-counting capability and the pixels fired has a very linear dependence on the input light intensity.
Individual photon peaks can also be clearly identified.
BCAL uses a Pb/SciFi matrix design to have both a compact size and a very good energy resolution.
Rin = 65 cm
25 c
m
Section View of BCAL
The BCAL modules are coupled on both ends to arrays of Silicon Photon Multipliers (SiPM) with light guides.
BCALModule
Ligh
t Gui
des
SiPMs
Light Collection of BCAL
A 4x4 SiPM Array
GlueX Detector
BCALBarrel Calorimeter
Photon beam
CDCCentral Drift Chamber
FDCForward Drift Chambers
FutureParticle ID
TOFTime-of-Flight
Solenoid: 2.2 Tesla
FCALForward
Calorimeter
A 390 cm long Electromagnetic Barrel Calorimeter (BCAL) is inserted into the solenoid which generates a 2.2 Tesla magnetic field to detect particles in large angles. It measures energy deposition between 50 MeV to 5 GeV and provides timing and position information.
SiPM (Silicon Photo Multiplier) is a new type of photon-counting device made up of multiple APD (Avalanche PhotoDiode) pixels operating in Geiger mode. Each APD pixel outputs a pulse signal when it detects one photon, and the output of the SiPM is the total sum of all the pixels.
4x4 SiPM Arrays for BCAL
2 p.e.
1 p.e.1 p.e.
2 p.e.
Pulse Shape and ADC Spectrum of a 3x3 mm SiPM Tile
Linearity of SiPM
The SiPMs will be cooled to 5oC to reduce the dark noise.Passive bias voltage compensation circuit will be used as well to further stabilize the gain.
Cool the SiPMs
