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Test Beam Facility For hIgh Rate STudies (TB.First) @IPHC


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Plots from pixel phase 1, Layer 3

Plots Description
hit_map_wo_weight.png 2D (column,row) hit occupancy map for a CMS Phase-1 Pixel module of the Layer 3. The module has been previously calibrated using pXar software and is operated at a depletion voltage of -100 V. Data are taken under a 25 MeV proton beam with random triggers (with the help of a Digital Test Board). There is no magnetic field, and the module is at 90 degrees to the beam. The pixels with higher occupancy corresponds to pixels of larger sizes, located at the edges of ROCs.
hit_wo_x_profile.png Projected hit map along columns for a CMS Phase-1 Pixel module of the Layer 3. The module has been previously calibrated using pXar software and is operated at a depletion voltage of -100 V. Data are taken under a 25 MeV proton beam with random triggers (with the help of a Digital Test Board). There is no magnetic field, and the module is at 90 degrees to the beam. The pixels with higher occupancy corresponds to pixels of larger sizes, located at the edges of ROCs.
hit_wo_y_profile.png Projected hit map along rows for a CMS Phase-1 Pixel module of the Layer 3. The module has been previously calibrated using pXar software and is operated at a depletion voltage of -100 V. Data are taken under a 25 MeV proton beam with random triggers (with the help of a Digital Test Board). There is no magnetic field, and the module is at 90 degrees to the beam. The pixels with higher occupancy corresponds to pixels of larger sizes, located at the edges of ROCs.
cluster_size.png Number of pixels inside a cluster for a CMS Phase-1 Pixel module of the Layer 3. The module has been previously calibrated using pXar software and is operated at a depletion voltage of -100 V. Data are taken under a 25 MeV proton beam with random triggers (with the help of a Digital Test Board). There is no magnetic field, and the module is at 90 degrees to the beam. In order to reconstruct clusters, the pixel with highest pulse height is taken as cluster seed if its pulse height is above 100 ADC counts, and other pixels are clustered if they are not more than 2 pixels away from the seed and if their pulse height is above 20 ADC counts. The barycenter of a cluster is weighted by the pulse height of the pixels.
cluster_radius.png Distance between cluster barycenter and the pixels from the cluster for a CMS Phase-1 Pixel module of the Layer 3. The module has been previously calibrated using pXar software and is operated at a depletion voltage of -100 V. Data are taken under a 25 MeV proton beam with random triggers (with the help of a Digital Test Board). There is no magnetic field, and the module is at 90 degrees to the beam. In order to reconstruct clusters, the pixel with highest pulse height is taken as cluster seed if its pulse height is above 100 ADC counts, and other pixels are clustered if they are not more than 2 pixels away from the seed and if their pulse height is above 20 ADC counts. The barycenter of a cluster is weighted by the pulse height of the pixels. The distance is calculated in local units (columns and rows).
cluster_charge.png Sum of the pulse heights of pixels inside a cluster for a CMS Phase-1 Pixel module of the Layer 3. The module has been previously calibrated using pXar software and is operated at a depletion voltage of -100 V. Data are taken under a 25 MeV proton beam with random triggers (with the help of a Digital Test Board). There is no magnetic field, and the module is at 90 degrees to the beam. In order to reconstruct clusters, the pixel with highest pulse height is taken as cluster seed if its pulse height is above 100 ADC counts, and other pixels are clustered if they are not more than 2 pixels away from the seed and if their pulse height is above 20 ADC counts. The barycenter of a cluster is weighted by the pulse height of the pixels.
pulse_height.png Distribution of the pixel pulse height for a CMS Phase-1 Pixel module of the Layer 3. The module has been previously calibrated using pXar software and is operated at a depletion voltage of -100 V. Data are taken under a 25 MeV proton beam with random triggers (with the help of a Digital Test Board). There is no magnetic field, and the module is at 90 degrees to the beam. Each pulse height is digitized by an 8-bit ADC (enabling values from 0 to 255). Pixels saturate around 155 ADC counts. This saturation of the Front-End electronics (pre-amplifier) is due to the large signals deposited (10 to 15 MIP).
max_pulse_height.png Distribution of the maximum pulse height per event for a CMS Phase-1 Pixel module of the Layer 3. The module has been previously calibrated using pXar software and is operated at a depletion voltage of -100 V. Data are taken under a 25 MeV proton beam with random triggers (with the help of a Digital Test Board). There is no magnetic field, and the module is at 90 degrees to the beam. Each pulse height is digitized by an 8-bit ADC (enabling values from 0 to 255). Pixels saturate around 155 ADC counts. This saturation of the Front-End electronics (pre-amplifier) is due to the large signals deposited (10 to 15 MIP).

Plots from 2CBC3 mini pT module

Plots Description
s1_profile.png Occupancy of the front sensor, and for the first CBC3 chip, of a 2S mini module as a function of the strip number. The data are taken from a 25 MeV beam of protons. The events are triggered by the coincidence of 2 plastic scintillators. The bias voltage applied to the sensor is of -400 Volts. The empty bin for strip 60 is due to a dead channel related to a broken wire bound. Strips close by this deep are showing larger occupancies. There is no magnetic field, and the module is at 90 degrees to the beam.
s2_profile.png Occupancy of the back sensor, and for the first CBC3 chip, of a 2S mini module as a function of the strip number. The data are taken from a 25 MeV beam of protons. The events are triggered by the coincidence of 2 plastic scintillators. The bias voltage applied to the sensor is of -400 Volts. The empty bins for strips 62 and 70 are due to dead channels related to broken wire bounds. Strips close by these deeps are showing larger occupancies. There is no magnetic field, and the module is at 90 degrees to the beam.
hit_s1_log.png Number of strip with signals per event, for the front sensor and the first CBC3 chip, of a 2S mini-module. The data are taken from a 25 MeV beam of protons. The events are triggered by the coincidence of 2 plastic scintillators. The bias voltage applied to the sensor is of -400 Volts. The mean strip multiplicity is close to 3, reflecting a larger energy deposition due to the nature of the beam. Events with 0 strips mainly reflect the module acceptance, rather than the hit efficiency (that is expected to be close to 100%). For this reason, the first bin has been set to 0. The fraction of events in the 0 strip bin is of 1.6%. There is no magnetic field, and the module is at 90 degrees to the beam.
hit_s2_log.png Number of strip with signals per event, for the back sensor and the first CBC3 chip, of a 2S mini-module. The data are taken from a 25 MeV beam of protons. The events are triggered by the coincidence of 2 plastic scintillators. The bias voltage applied to the sensor is of -400 Volts. The mean strip multiplicity is close to 3, reflecting a larger energy deposition due to the nature of the beam. Events with 0 strips mainly reflect the module acceptance, rather than the hit efficiency (that is expected to be close to 100%). For this reason, the first bin has been set to 0. The fraction of events in the 0 strip bin is of 1.6%. There is no magnetic field, and the module is at 90 degrees to the beam.
hit_corr.png Correlations between the strip number in the front sensor (x-axis) and the strip number in the back sensor (y-axis), for the first CBC3 chip of a 2S mini-module. The events are triggered by the coincidence of 2 plastic scintillators. The bias voltage applied to the sensor is of -400 Volts. The empty bins for strip 60 in the front sensor and 62 and 70 in the back sensor are due to broken wire bounds. A very high correlation is observed. There is no magnetic field, and the module is at 90 degrees to the beam.
tot_stub_log.png Multiplicity of reconstructed stub for the first CBC3 chip of a 2S mini-module. The events are triggered by the coincidence of 2 plastic scintillators. The bias voltage applied to the sensor is of -400 Volts. The fraction of events with 0 stub reflects mainly the acceptance of the module, rather than the stub efficiency (that is expected to be close to 100%). For this reason, the first bin has been set to 0. The beam being perpendicular to the 2S module surface, the great majority of events with at least one stub contains 1 single stub per event. This also shows the limited impact of the cluster size. There is no magnetic field, and the module is at 90 degrees to the beam.

Plots from simulation

Plots Description
Vis_geom1.png A visualization of the Geant4-simulated geometry of the current setup. The Al foil (beam entrance), the two plastic scintillators for triggering (depth of 2 mm), the pixel phase 1 layer (460 microns of silicone in total) and the 2S module (320 microns of silicon for each plane) which is the current DUT, can be seen. The aire is also simulated. The proton beam (blue line) and its direction are noted.
Ekin_Z_20000_events.png Kinetic energy of the beam particles (25 MeV protons) along the z-direction for the whole setup (scintillators, 2S DUT, pixel module) from a simulated run of 20000 events. Every large energy loss (step) are due to the presence of material. Small energy loss from the air can also be seen. All the beam energy is deposited in the last scintillator. The simulation is performed with Geant4.
ekin_vs_z_one_event.png Kinetic energy of the beam particles (25 MeV protons) along the z-direction for the whole setup (scintillators, 2S DUT, pixel module) from a single-event simulated run. The simulation is performed with Geant4.

xy_Ex_Al.png Beam profile at the exit of the Al foil at the exit of the beam line from a simulated run of 20000 events with a 25 MeV proton beam. The simulation is performed with Geant4.
xy_Ex_Scint1.png Beam profile at the exit of the first scintillator for triggering from a simulated run of 20000 events with a 25 MeV proton beam. The simulation is performed with Geant4.
xy_Ex_2S1.png Beam profile at the exit of the first strip sensor of the 2S module DUT from a simulated run of 20000 events with a 25 MeV proton beam. The simulation is performed with Geant4.
xy_Ex_2S2.png Beam profile at the exit of the second strip sensor of the 2S module DUT from a simulated run of 20000 events with a 25 MeV proton beam. The simulation is performed with Geant4.
xy_Ex_Pix2.png Beam profile at the exit of the pixel layer from a simulated run of 20000 events with a 25 MeV proton beam. The simulation is performed with Geant4.
xy_Ex_Scint2.png Beam profile at the exit of the second scintillator for triggering from a simulated run of 20000 events with a 25 MeV proton beam. The simulation is performed with Geant4.

EnDep_Al.png Energy deposited from primary particles (25 MeV protons) in the Al foil at the exit of the beam line from a simulated run of 20000 events. The simulation is performed with Geant4.
EnDep_Scint1.png Energy deposited from primary particles (25 MeV protons) in the first scintillator (along the way of the beam) from a simulated run of 20000 events. This pair of organic scintillators are used for triggering. The first scintillator is in front of the DUT (along the way of the beam), while the second one is behind the pixel layer (along the way of the beam) in the current setup. The simulation is performed with Geant4.
EnDep_2SS1.png Energy deposited from primary particles (25 MeV protons) in the first (along the way of the beam) sensor of the 2S module DUT from a simulated run of 20000 events. The simulation is performed with Geant4.
EnDep_2SS2.png Energy deposited from primary particles (25 MeV protons) in the second (along the way of the beam) sensor of the 2S module DUT from a simulated run of 20000 events. The simulation is performed with Geant4.
EnDep_Pix_Sen.png Energy deposited from primary particles (25 MeV protons) in the sensor of a pixel module (behind the 2S DUT) from a simulated run of 20000 events. The pixel layer will be one of the two pixel layers of the CHROMini telescope. The simulation is performed with Geant4.
EnDep_Pix_ROC.png Energy deposited from primary particles (25 MeV protons) in the ROC of a pixel module (behind the 2S DUT) from a simulated run of 20000 events. The simulation is performed with Geant4.
EnDep_Scint2.png Energy deposited from primary particles (25 MeV protons) in the second scintillator (along the way of the beam) from a simulated run of 20000 events. This pair of organic scintillators is used for triggering. The first scintillator is in front of the DUT (along the way of the beam), while the second one is behind the pixel layer (along the way of the beam) in the current setup. The simulation is performed with Geant4.
EnDep.png Energy deposited from primary particles (25 MeV protons) in each volume of the setup (Al foil, scintillators, 2S DUT, pixel layer) from a simulated run of 20000 events. The simulation is performed with Geant4.

Nbe2S.png Number of produced in the sensors of the 2S DUT electrons which have sufficient energy to travel at least 100 um from their production point per event (one event corresponds to one primary proton) from a simulated run of 20000 events with a 25 MeV proton beam. The simulation is performed with Geant4.
Energy_dep_ekin_Scint_2.png Energy deposition from primary particles (25 MeV protons) in the second scintillator (along the way of the beam) vs. their kinetic energy at the entrance of the same scintillator from a simulated run of 20000 events. The simulation is performed with Geant4.
Cluster_occupancy_bottom_module_pixel_layer_2_simulation.png Cluster occupancy per column per row for the bottom module of the pixel layer from a simulated run of 20000 events with a 25 MeV proton circular beam (with σr = 2.123 mm); the beam size was measured from the beam spot on the cluster occupancy map for the same module, obtained from the analysis of the real run, and thus the above parameters were selected for the simulation run). Charge diffusion and FE electronics behavior have not yet been included in the model. The simulation is performed with Geant4.

cluster_size_2S_2.png Hits multiplicity of the second 2S sensor (along the way of the beam) from a simulated run of 20000 events with a 25 MeV proton beam. The hit multiplicity is obtained by measuring the deposited energy in the volume of each strip and dividing it by the energy required for the creation of an electron-hole pair (3.67 eV). Charge diffusion and FE electronics behaviour have not been included in the model. The simulation is performed with Geant4. [THIS IS FOR BACKUP OF P. ASENOV'S PRESENTATION TOMORROW.] The simulation is performed with Geant4.
Time_diff.png Time of flight for the beam particles (25 MeV protons) along the z-direction (simulated run of 20000 events). The TOF is smaller than the scintillator coincidence width of 7 ns. The simulation is performed with Geant4.

-- JeremyAndrea - 2020-01-27

Attachments Attachments
Topic attachments
I Attachment History Action Size Date Who Comment
PNGpng Cluster_occupancy_bottom_module_pixel_layer_2_simulation.png r1 manage 27.9 K 2020-01-28 - 16:33 PatrickAsenovAsenov  
PNGpng Ekin_Z_20000_events.png r1 manage 152.1 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng EnDep.png r1 manage 15.7 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng EnDep_2SS1.png r1 manage 8.1 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng EnDep_2SS2.png r1 manage 8.3 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng EnDep_Al.png r1 manage 8.5 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng EnDep_Pix_ROC.png r1 manage 8.1 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng EnDep_Pix_Sen.png r1 manage 8.1 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng EnDep_Scint1.png r1 manage 7.6 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng EnDep_Scint2.png r1 manage 8.4 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng Energy_dep_ekin_Scint_2.png r1 manage 11.0 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng Nbe2S.png r1 manage 9.5 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng Time_diff.png r2 r1 manage 14.0 K 2020-01-28 - 16:07 PatrickAsenovAsenov  
PNGpng Vis_geom1.png r1 manage 120.8 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng cluster_charge.png r1 manage 14.0 K 2020-01-27 - 16:35 ClementGrimault  
PNGpng cluster_map_center.png r1 manage 26.2 K 2020-01-27 - 16:35 ClementGrimault  
PNGpng cluster_radius.png r1 manage 12.2 K 2020-01-27 - 16:35 ClementGrimault  
PNGpng cluster_size.png r1 manage 13.4 K 2020-01-27 - 19:12 ClementGrimault  
PNGpng cluster_size_2S_2.png r1 manage 39.9 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng cluster_x_profile.png r1 manage 12.8 K 2020-01-27 - 16:38 ClementGrimault  
PNGpng cluster_y_profile.png r1 manage 14.0 K 2020-01-27 - 16:38 ClementGrimault  
PNGpng ekin_vs_z_one_event.png r1 manage 157.1 K 2020-01-28 - 11:23 JeremyAndrea  
PNGpng hit_corr.png r2 r1 manage 15.8 K 2020-01-28 - 15:20 ClementGrimault  
PNGpng hit_map.png r1 manage 33.2 K 2020-01-27 - 16:35 ClementGrimault  
PNGpng hit_map_wo_weight.png r1 manage 27.5 K 2020-01-27 - 16:35 ClementGrimault  
PNGpng hit_s1.png r2 r1 manage 10.6 K 2020-01-28 - 15:18 ClementGrimault  
PNGpng hit_s1_log.png r2 r1 manage 9.1 K 2020-01-28 - 15:19 ClementGrimault  
PNGpng hit_s2.png r2 r1 manage 10.0 K 2020-01-28 - 15:22 ClementGrimault  
PNGpng hit_s2_log.png r2 r1 manage 9.2 K 2020-01-28 - 15:23 ClementGrimault  
PNGpng hit_wo_x_profile.png r1 manage 13.6 K 2020-01-27 - 16:38 ClementGrimault  
PNGpng hit_wo_y_profile.png r1 manage 14.1 K 2020-01-27 - 16:38 ClementGrimault  
PNGpng hit_x_profile.png r1 manage 15.6 K 2020-01-27 - 16:35 ClementGrimault  
PNGpng hit_y_profile.png r1 manage 14.6 K 2020-01-27 - 16:35 ClementGrimault  
PNGpng max_pulse_height.png r1 manage 11.9 K 2020-01-27 - 16:35 ClementGrimault  
PNGpng pulse_height.png r1 manage 11.7 K 2020-01-27 - 16:35 ClementGrimault  
PNGpng s1_profile.png r2 r1 manage 13.1 K 2020-01-28 - 15:23 ClementGrimault  
PNGpng s2_profile.png r2 r1 manage 12.7 K 2020-01-28 - 15:24 ClementGrimault  
PNGpng tot_stub.png r2 r1 manage 10.7 K 2020-01-28 - 15:24 ClementGrimault  
PNGpng tot_stub_log.png r2 r1 manage 9.4 K 2020-01-28 - 15:25 ClementGrimault  
PNGpng xy_Ex_2S1.png r1 manage 14.8 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng xy_Ex_2S2.png r1 manage 15.1 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng xy_Ex_Al.png r1 manage 13.0 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng xy_Ex_Pix2.png r1 manage 16.0 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng xy_Ex_Scint1.png r1 manage 13.3 K 2020-01-28 - 11:22 JeremyAndrea  
PNGpng xy_Ex_Scint2.png r1 manage 14.4 K 2020-01-28 - 11:22 JeremyAndrea  
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