Design
Review of Field Cage for SBND
October 25, 2016
Charge
The Committee is
to conduct a technical review of SBND stainless steel
roll-formed field cage design to assess its readiness for
fabrication. Field cage is part of the high voltage
system to provide a draft filed of 500V/cm with 1% uniformity
in the TPC drift volume while keeping electrical field
everywhere else below 30KV/cm. The review team is asked
to examine the design and address the following questions:
- Are the
technical specifications adequately defined? Does
the design meet the specifications?
- Are
engineering analyses including electrostatic and
structural FEAs sufficiently comprehensive
to support the design?
- Have key
technical and safety risks captured? Is there a plan
for managing and mitigating these risks?
- Are
interface and integration issues of the field cage to
other detector components identified and adequately
addressed?
- Are the
component layout and fabrication drawings, assembly and
installation procedures sufficiently complete to
support the fabrication, installation and operation of the
subsystems?
- Are the
designs presented sufficient enough to support the
start of filed cage fabrication?
The committee should
present its findings, comments, and recommendations as well as
answers to the above questions in a written report within 2
weeks of the actual review.