Dune Grounding Issues Impedance Concerns T. Shaw 11APR2018 - - PowerPoint PPT Presentation

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Oct 19, 2022 109 likes •149 views

Dune Grounding Issues Impedance Concerns T. Shaw 11APR2018 Detector Ground Isolation 2 10APR2018 Cryostat Slab and Final Design Intermediate small test structure For Discussion - Small scale tests of detector ground isolation - Is it

SLIDE 1

Dune Grounding Issues Impedance Concerns

T. Shaw

11APR2018

SLIDE 2

Detector Ground Isolation

10APR2018 Cryostat Slab and Final Design 2

SLIDE 3

Intermediate small test structure

For Discussion - Small scale tests of detector ground isolation
Is it possible to do a test of our detector ground isolation in an available

drift area?

Requirements:
Test area must be close to a good “building” ground reference; copper cable

bonded to the “building” reference must be available for us to hook-up to.

New concrete pad (approximately 1 meter square and same depth as planned for

final pad) must be placed on dry drift floor.

Detector could be mocked up using a steel block resting on a thin piece of G10 on

top of the new concrete pad.

Tests:
Megger test between detector (steel block) and copper cable “building” reference
“DUNE” Impedance Monitor can be installed in the mock-up
Special tests to create “noise” on building ground and see if we can pick it up on

detector block.

10APR2018 Cryostat Slab and Final Design 3