Door seal test set-up concepts*Robin Lafever LBNL*Generic Door seal concepts for personnel access and feed-through applications in the CUORE Radon barrier / Clean room assembly.

Final design details will be customized to accomodate specific door seal cross-sections

ForCarlo BucciLNGS Paolo GorlaLNGSRichard KadelLBNL

Robin Lafever LBNL

*Robin Lafever LBNL*CUORE Door seal test set-up

Pressure Seal configuration CLOSURE DETAILCUORE Door seal test set-up

Pressure Seal configuration CLOSURE DETAILComments:

At the moment, there seems to be no special need for N2 ports in any of the test boxes. If such a need arises, they should be easy to retrofit. Note newer smaller boxes. Some details have been changed from the original concept, based on discussions with Leo Tatananni at the LNGS machine shop. He suggests 5mm Stainless Steel for the box construction, with all joints TIG welded. I concur. Details shown are generic and I encourage using local suppliers where possible, and will gladly modify design details if necessary to accommodate off-the-shelf solutions. Final details will be designed around specific seal cross-sections, Yet to be selected. Next steps might be to forward these concepts to Ezio Previtali and the Milano(?) Group for comments about the feasibility and proceedure for doing a suite of tests to proof Radon resistance of selected configurations and materials.

Robin Lafever LBNL

Robin Lafever LBNL*CUORE Door seal test set-up GENERIC BOXMaterial preferencesAll 10mm thick

Aluminum -welded orSteel -welded orAcrylic (plexiglas) solvent welded*

Robin Lafever LBNL

CUORE Door seal test set-upDeStaCo Clamp 91140

Doubler plate to allowblind-tapped holes for mounting screwsTest Gasket specimenTop shown removed**Robin Lafever LBNL

Robin Lafever LBNL

Robin Lafever LBNL*CUORE Door seal test set-upTop shown installed*

Robin Lafever LBNL

*Robin Lafever LBNL*CUORE Door seal test set-upREDUCED VOLUMEMaterial: 5mm thick SS

All joints TIG Welded

Robin Lafever LBNL

*Robin Lafever LBNL*CUORE Door seal test set-up

Pressure Seal configuration

Robin Lafever LBNL

*Robin Lafever LBNL*CUORE Door seal test set-up

Pressure Seal configurationMaterial: 5mm thick SS

All joints TIG Welded

Robin Lafever LBNL

*Robin Lafever LBNL*CUORE Door seal test set-up

Pressure Seal configuration CLOSURE DETAIL

Robin Lafever LBNL

*Robin Lafever LBNL*CUORE Door seal test set-upCUORE Door seal test set-up

Pressure Seal configuration CLOSURE DETAIL

Robin Lafever LBNL