FDC Readiness Checklist
From GlueXWiki
Revision as of 17:04, 8 March 2011 by Pentchev (Talk | contribs) (→<font color=red> Forward Drift Chamber Assembly Readiness Review Checklist </font>)
Forward Drift Chamber Assembly Readiness Review Checklist
The goal of the Forward Drift Chamber Readiness Review is to assess whether Jefferson Lab is ready to begin production of the Hall D Forward Drift Chamber. Specifically the following questions need to be examined:
- Environment
- General
- Are the MSDS information sheets available for all products used during production?
- What support do you get from Jlab EH&S services?
- Clean Room
- General
- Procedures:
- Are all procedures for handling and production of cathode planes in place?
- Are all procedures for handling and production of wire planes in place?
- Guidance should be given for each of the steps in the fabrication procedure for ease of estimating completion times.
- Training:
- What are the training procedures for first-time workers in each of the areas where they will work?
- How is this documented?
- Acceptance Testing
- Cathode foils
- Cathode frames
- Wire frame
- What kind of measurements, and what frequency is planned during assembly?
- What documentation is recorded at each stage?
- Recovery Procedures
- What are the procedures for reporting an anomally in measurements?
- What are the procedures for rectifying any problems encountered during assembly? Is this documented?
- Acceptance Testing of completed module
- How are the dimensions checked and verified against drawings?
- How is the wire tension measured?
- What testing will be done to verify performance?
- How will the chamber be tested with cosmics?
- Tracking
- Are all travelers specified for the project?
- What information is recorded for each wire plane?
- What information is recorded for each cathode plane?
- What information is recorded during assembly fabrication?
- Schedule
- How is the schedule tracked?
- Reporting
- Is the reporting chain to the project clear?
Testing and Tracking
This Quality Assurance and Acceptance Test Plan must include the following:
- A Component Inspection Plan, comprised of:
- Inspection of all materials received from the vendor’s suppliers and subcontractors and the recording of this information.
- Obtaining and recording of all material certifications and analyses.
- The calibration and identification of standards and instrumentation used for testing; the intervals between calibrations are also to be defined.
- Establishment of inspection points for the incoming components, which will measure critical parameters.
- The recording of all inspection data in such a manner so that the history of a component can be readily traced.
- The submittal to JLab of all data related to the above.
- A Process Quality Plan, comprised of:
- Step-by-step process documents, with instructions and prints pertaining to each assembly and/or manufacturing step.
- Safety information for the job operator, including material data safety sheets
- A method of reporting any mechanical defects found during assembly of components.
- A mechanism for recording all job operator work sessions.
- The submittal to JLab of all data related to the above.
- Final Acceptance Test Plan, comprised of:
- Acceptance of the wire planes.
- Acceptance of the cathode planes.
- Acceptance of the electrical functionality of wires and strips.
- Acceptance of the readout channels at the level of the preamplifier output.
Tracking
The vendor must keep a record (travelers) of all raw materials and inspections that are used in the construction of each module, and document the procedures followed during fabrication.