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Module Assembly Quality Control High Voltage Ohio State Status Report. Module Assembly: Facilities. Van De Graaf Lab: Shipping and receiving Initial QC (R,C, singles rates) Long term test. Entrance. To be removed. Module Assembly: Facilities (VDG). Utilities: Gas, HV

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module assembly quality control high voltage ohio state status report

Module AssemblyQuality ControlHigh VoltageOhio State Status Report

K. Honscheid, Ohio State University

module assembly facilities
Module Assembly: Facilities

Van De Graaf Lab: Shipping and receiving

Initial QC (R,C, singles rates)

Long term test

Entrance

To be removed

K. Honscheid, Ohio State University

module assembly facilities vdg
Module Assembly: Facilities (VDG)

Utilities: Gas, HV

Exhaust, Network

4 piles of

12 H-boxes

Tubes

Modules

Gassystem (MKS)

K. Honscheid, Ohio State University

module assembly facilities smith
Module Assembly: Facilities (Smith)

Assembly fixtures (4)

Gas (MKS)

Source Scan Table

HV and Electronics

K. Honscheid, Ohio State University

module assembly fixtures
Module Assembly: Fixtures
  • Two complete assembly fixtures
  • Parts for remaining 2 fixtures machined, ready to assemble
  • Tube and module carrier designed, currently being machined

K. Honscheid, Ohio State University

quality control source scan
Quality Control: Source Scan

Source Scan Table complete and operational

Scans of 3 large-cell prototype tubes underway

K. Honscheid, Ohio State University

quality control database
Quality Control: Database
  • mySQL based
  • Web browsing tools (php based)
  • Complete tube+module history
  • all (QC) test data
  • INFN/PHT information will be integrated
  • first version before Dec 25

K. Honscheid, Ohio State University

quality control status and summary
Quality Control: Status and Summary

DONE:

  • Source Scan Table ready
  • Barcode Scanner (tube and box id’s) ready
  • (Automatic) resistance and capacitance measurement ready
  • Gas system monitor ready
  • Weather station monitor ready
  • Singles rates electronics

TO DO:

  • Source Scan – HV integration, singles rates – HV integration
  • Long term test software
  • Database integration
  • Barcode (software) for module tags

QUESTIONS:

  • QC on “phi strips”? Laminated cables?

K. Honscheid, Ohio State University

high voltage power supply
High Voltage: Power Supply

80 channels

1:4 Fan out

Up to 4 diff. voltages

Current Monitor

ZEUS over-current

protection

Canbus, Ethernet

Interlocks

External HV

K. Honscheid, Ohio State University

high voltage power supply10
High Voltage: Power Supply
  • All parts ordered
  • PC boards designed, ordered (2/3)
  • Modular connector, injection molded
  • Digital part needs more work (canbus, software)

K. Honscheid, Ohio State University

high voltage power supply current monitor
High Voltage: Power Supply, Current Monitor
  • 2000 PC boards ordered
  • Transformer being wound
  • Assembly starts Dec 15

K. Honscheid, Ohio State University

high voltage controls and interlocks
High Voltage: Controls and Interlocks
  • Can-bus interface (to be tested)
  • (Fast) Ethernet
  • HV enable switch (local)
  • “Interlocks”:
    • all opto-isolated
    • current design uses isolated BNC
    • all signals (except TRIP can be daisy-chained)
    • HV Enable (Input)
    • Goto V0 (Injection, Input)
    • At V0 (Output)
    • Over-current, Trip (Output)
    • Ramping (Output)
    • need to talk to Walt, Ray
    • new OSU Post Doc

K. Honscheid, Ohio State University

high voltage system design
High Voltage: System Design
  • 3x HV power supplies per sextant
  • 3x 1u ground strips per sextant
  • 15u rack space per sextant
  • 3 racks in total

K. Honscheid, Ohio State University

high voltage hv box connector
High Voltage: HV Box/Connector
  • (half shell) design complete
  • HV PC board designed
  • HV capacitors ordered (INFN)
  • Radiall pins available
  • AMP connector integrated
  • Extra ground connector

K. Honscheid, Ohio State University

high voltage hv pc board
High Voltage: HV PC Board
  • Simple 2 layer PC board
  • HV tests have started
    • conformal coating?
    • pot entire connector?
  • 1 MOhm resistor in series
  • “Signal” resistor
    • 100 Ohm (in theory)
    • 10 K (in test module)
    • need to decide. How?
  • Novacap HV capacitor

K. Honscheid, Ohio State University

high voltage hv infrastructure
High Voltage: HV Infrastructure

baseline – until this morning…

K. Honscheid, Ohio State University

high voltage hv infrastructure ii
High Voltage: HV Infrastructure II

(from

Vito)

K. Honscheid, Ohio State University

high voltage hv infrastructure iii
High Voltage: HV Infrastructure III
  • more flexibility
  • works for every tube
  • works for 10 and 20 wire cable

K. Honscheid, Ohio State University

status and summary
Status and Summary
  • Preparation for module assembly on track
  • Good progress on QC tests
    • Source scan table ready
  • HV Power Supply design complete
    • working prototype, close to production version
    • lot’s of assembly and test labor required…
  • HV Box/Connector designed
    • improved cable routing
    • freeze design next week

K. Honscheid, Ohio State University

over current protection zeus
Over-current protection (ZEUS)

6 kV

Limited streamer tube

LST Voltage

Voltage

Current

K. Honscheid, Ohio State University