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  • Richard overview talk pdf ppt
  •  Pelle's tower wiring and electronics talk: ppt pdf
  •  Bruce Hines' readout electronics talk:  ppt pdf
  • TDR pdf

L3 Manager for

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Tower Wiring and Electronics

L2 is Richard Partridge
L3 deputy is Martin Huber, Colorado University (in charge of SQUID fabrication)

  • Budget and schedule responsibility and weekly reports to CAM (Richard P. at SLAC) Here is P6 pdfMonthly status progress report on tasks on WBS 1.1.6 
  • Coordinate fabrication, testing, interfaces with other subsystems
  • Coordinate tower electronics background contribution
  • Plan, coordinate, oversee, and report on radiopurity assay
  • Contacts
    •  L2 background manager John Orwell PNNL
    • Chemist for ICP-MS assay details is Isaac Arnquist, PNNL
    • For general questions on radiopurity calculations contact Ben Loer, PNNL
    • Include Richard in communications
  • SQUID fabrication coordination
  • SQUID fabrication is underway including Q/C testing; this needs to be followed and reported to Richard and project management 
  • Contacts
    • This work is handled but L3 deputy Martin Huber and Bruce Hines at Colorado University
  • eTraveler for tower electronics
  • Coordinate with Tsuguo Aramaki, SLAC, who is responsible for tower assembly

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  • Monthly status progress report on tasks on WBS 1.1.6
  • Keep temporary eTraveler updated: 1.1.6 Traveler
  • Work with Mike Kelsey, SLAC, to move all parts into official database traveler.
  • Follow up and receive back preproduction tower PCB's that are being screened right now
  • Send horizontal and vertical flex cables for nondestructive screening
  • Coordinate with background group on what is left to be screened and what the plan is for assembled parts.

 

 


Electronic design

  • Design development, schematic and layout for very custom PCB taylored for tower testing  in close collaboration with Richard, etc. Expect there will be 2 or 3 PCBs in the next 6 months. (March to September 2018)
  • Work closely with the mechanical engineers for interfaces
  • Need to support and work closely with the layout group, and in cases w/o their help, in cases were specific fab is needed for radiopure experiments like this
  • Working closely with vendor to produce superconducting flex cables

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Electronics general support

  • Design development, schematic and layout for PCBs taylored for tower testing in close collaboration with SuperCDMS collaborators
  • PCB schematic and layout for testing on both normal tools (dxDesigner, PADS, GC-Prevue/CAD) and express PCB.
  • Coordinate testing of tower wiring and electronics PCBs and flexible PCBs: writing testing instructions, documentation,
  • Specific support: analog pre-amp design/fab, rf filter procurements, evaluation and testing
    • Support testing of analog electronics in the clean room: using spectrum analyzer to measure noise perf., design, use simple custom pre-amps, characterize RF filter performance, help with noise models, etc.
  • Completed? Where is info/files? Noise Help support noise calculation: both spice simulation and manual calculation of transistor level noise models

  • First tower integration: help design and testing of mechanical support structure for PCB integration on tower(this is done with Marco and other mech. eng.)

  • Coordinate and oversee testing of transistor testing at Caltech and the subsequent loading of transistors with vendors to mezzanine boards for use in the experiment

 

Outstanding tasks

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  • dxDesigner sketch:

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  • Dan Dove, chief engineer at Basic Electronics Inc.
  • Include Richard on all communications.
  • They should be in drilling now, ETA roughly mid april.

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  • Work with Marco Oriunno for mechanical testing of the fixture for tower assembly.
  • Write a Q/C test procedure for the vertical flex cable similar to the horizontal flex cable version below before it arrives from vendor.

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L3 manager for Readout Cables for SuperCDMS

  • Budget and schedule responsibility and weekly reports to CAM (B. Hines, Denver) Here is P6 pdf
  • Coordinate assembly and testing of more test cables (we have the hardware) with electrical shop and CDMS folks.
  • Coordinate assembly and testing of first long readout cables (the full design and procurement of PCBs and other hardware might be done before P leaves).
  • for which part? coordinate with L2 manager and Fermilab engineers
  • Coordinate interfaces and adjust designs based on interactions with other subgroups in the project: cryogenics, readout electronics and tower.
  • Help with overall Completed? Where is info, files? Overall electrical design; transmission line simulation
  • Responsible for eTraveler and radiopurity control
  • Completed? Coordinate with Fermilab engineers on mechanical design, integration and SNOLAB assembly (holding regular meetings)
  • Fabrication/Vendor contact; procurement of all aspect contacts for hardware procurement of the cables ( wire, PCBs , assembly); this includes lots of interaction and planning with vendors, Lupe, etc.

 

 

Outstanding tasks

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  • with Richard and Paul Brink, SLAC, on readout cable needs and plans for the test facility at SLAC
  • with Matt Hollister, FNAL (L2 manager for cryogenics), and Marco Oriuonno on any outstanding interface questions
  • with background group on what is left to be screened and what the plan is for assembled parts regarding readout cables
  • with Wolfgang Rau, Queens, and Richard regarding CUTE test facility needs
    • We have existing readout cable in storage that is handled with care for radiopurity for them
    • We have Cirlex boards for the tower side being planned for them

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  • and assembly
  • Work closely with and supervise assembly in electronics shop

 

Outstanding tasks and detailed documentation

See: SuperCDMS Task Transition

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FY19 best guess:

  • The above support for testing and tower assembly in the clean room continues.
  • Likely the pure design of PCBs and circuitry will become small.
  • L3 manager items continues. 
  • Coordination of radiopurity assays will continue
  • Coordination of fabrication for production (this should only be small adjustments to designs)
  • Readout cable duties will be mostly about finding a vendor that can build many of them and testing that procurement and coordinating with L2 manager and Fermilab cryogenics engineers on mechanical interfaces.

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