Difference between revisions of "Testing of PMT dividers"

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''' New version of the active base'''
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<gallery>
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Image:new_base2.jpg  |  Fig. 1  Connectors on the new base
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Image:new_base3.jpg  |  Fig. 2  Connectors on the new base
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Image:new_base1.jpg  |  Fig. 3  Extension of the PCB to accommodate the new connector
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</gallery>
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'''[[Final test of dividers]]'''
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''' Bench tests'''
 
''' Bench tests'''
  
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</gallery>
 
</gallery>
  
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[https://halldweb.jlab.org/wiki/index.php/Testing_of_PbWO_dividers Tests inside the FCAL dark room]
 
  
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[[Study noise inside FCAL]]
  
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<span style="color:#FFFF00; background:#00C000">
 
''' Installing 5x5 prototype on CCAL '''
 
''' Installing 5x5 prototype on CCAL '''
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</span>
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<gallery>
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Image:ccal_prototype2.jpg  |  Fig. 1 - Front view of the CCAL
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Image:ccal_prototype1.jpg  |  Fig. 2 - Rear view of the CCAL
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Image:ccal_prototype3.jpg  |  Fig. 3 - List of modules installe
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</gallery>
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''' Cables, and patch panels  '''
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<gallery>
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Image:ccal_prot_cables1.jpg  |  Fig. 1 - Cables connected to the FCAL2 dividers (signal, HV, and LV)
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Image:ccal_prot_cables3.jpg  |  Fig. 2 - Cables connected to the FCAL2 dividers (signal, HV, and LV)
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Image:ccal_prot_cables2.jpg  |  Fig. 3 - Closer look of dividers
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Image:ccal_prot_cables4.jpg  |  Fig. 4 - Patch panels: LV distribution for the 5x5 prototype (right) 
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Image:ccal_prot_cables5.jpg  |  Fig. 5 - Patch panel from the outside of the CCAL (the MPOD connector is on the left)
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</gallery>
  
  
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'''Tuning dividers after the CCAL beam test '''
 
<gallery>
 
<gallery>
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Image:ccal_prototype2.jpg  | Fig. 1 - Fig. 3 Installing modules on the CCAL prototype
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Image:before_saturation_fern.png | Fig. 1 Original base before saturation
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Image:ccal_prototype1.jpg  | Fig. 2  
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Image:after_saturation_fern.png | Fig. 2 Original base, A = 1.8 V
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Image:ccal_prototype3.jpg  | Fig. 3  
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Image:new_ops.png | Fig. 3 Modified OPS
 
</gallery>
 
</gallery>

Latest revision as of 09:43, 19 October 2023

New version of the active base

  • Fig. 1 Connectors on the new base

  • Fig. 2 Connectors on the new base

  • Fig. 3 Extension of the PCB to accommodate the new connector

Final test of dividers


Bench tests

  • Fig. 1 Setup for testing PMT dividers

  • Fig. 2 Bypassed amplifier, small amplitude

  • Fig. 3 Bypassed amplifier, large amplitude

  • Fig. 3 Amplifier gain 3, small amplitude


Study noise inside FCAL



Installing 5x5 prototype on CCAL

  • Fig. 1 - Front view of the CCAL

  • Fig. 2 - Rear view of the CCAL

  • Fig. 3 - List of modules installe


Cables, and patch panels

  • Fig. 1 - Cables connected to the FCAL2 dividers (signal, HV, and LV)

  • Fig. 2 - Cables connected to the FCAL2 dividers (signal, HV, and LV)

  • Fig. 3 - Closer look of dividers

  • Fig. 4 - Patch panels: LV distribution for the 5x5 prototype (right)

  • Fig. 5 - Patch panel from the outside of the CCAL (the MPOD connector is on the left)


Tuning dividers after the CCAL beam test

  • Fig. 1 Original base before saturation

  • Fig. 2 Original base, A = 1.8 V

  • Fig. 3 Modified OPS

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