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Draft: Implementation of the concentric layout with square shape chips.

Guanyue Wan requested to merge TV_U2_ConcentricLayouts into master

Implementation of concentric layout with trapezoid sensors, outer pipe and new substrate for velo upgrade 2.

Overview of current implementation overview_1

Changes:

Concentric layout of sensors around the beam pipe.

  1. Sensors forming inner and outer rings, at different z-positions. Number of sensor numbers the same.
  2. The distance between the innermost (& outermost) row of pixels to the center is kept the same.
Concentric layout with square and trapezoid sensors concentric_design_square concentric_design_trapezoid

Trapezoid sensor

  1. Only for the sensor. The chip, bump bond and glue remain square.
  2. Parameters: height 15.910mm, lower_base 19.134mm, upper_base 5.954mm
Parameters derivation image
Update procedure of the "ladder" origin isolate_sensors

Substrate shapes changed for concentric layout.

  1. The offset of substrate to chip's innermost edge is kept the same. (doesn't seem so on the plots?)
Updated substrate original_sensor_with_substrate trapezoid_sensor_with_substrate

An outer pipe at r=18mm. To place inner ring of sensors, some slices are needed.

Outer pipe with slices outerpipe_with_substrate

To-dos:

  1. Small fixes:
  • The design should be selected by a parameter in xml. But currently the Detector/TV/src/TV_geo.cpp in CMakeLists is overwritten.
  • Naming of some of the volumes should be corrected (like ladder)
  1. Optimize position parameters of sensor, chip, substrate...
  2. Parameterization?

Validated by

  • Core Software
  • RTA
  • Simulation
Edited by Guanyue Wan

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