Beam for SeaQuest/E-906

Michael Geelhoed

G2 to NM1 BermpipeRed: Berm Pipe Yellow: G2 Vac pump St.Blue: G2 EnclosureGreen: Bermpipe Flange

Vacuum Issue

Feb 1st March 1st April 1st May 1st June 1st

Michael Geelhoed 2/20/12

Bermpipe Solution

Sleeve the Bermpipe

G2 Enclosure NM1 Enclosure

Michael Geelhoed 2/20/12

G2 to NM1 Bermpipe

Michael Geelhoed 2/20/12

Bermpipe monitoring port – N01 upstream

G2 to NM1 Bermpipe

Michael Geelhoed 2/20/12

Bermpipe grout

Grout in the Bermpipe

G2 Enclosure NM1 Enclosure

G2 to NM1 Bermpipe

G2 to NM1 Bermpipe

Michael Geelhoed 2/20/12

Grout removal in Bermpipe

G2 to NM1 Bermpipe

Michael Geelhoed 2/20/12

Grout Removal techniques

Getting beam through the Bermpipe

G2 Enclosure NM1 Enclosure

G2 to NM1 Bermpipe

G2 to NM1 Bermpipe

Michael Geelhoed 2/20/12

• Helium filled Berm pipe is the plan • Upon testing leak rate at positive pressure there was no leak.• Tried pumping down with pumps and bad “O” rings = 1.3 Torr• Pump down with good “O” rings < 1 Torr• Helium filled Berm pipe is now the back-up plan• Current plan is to run with < 1 Torr vac berm pipe

Two options for the Bermpipe medium

Paperwork

Michael Geelhoed 2/20/12

• Shielding Assessment in the hands of the SA Committee • Will take until Tuesday 2/21/12 to review SA• SAD has gone through the SAD Committee• Once both documents are approved & signed• AD Division Head approves & signs• ES&H Division Head approves & signs• DOE local office approves & signs

My understanding of the process*

Finishing touches

Michael Geelhoed 2/20/12

• ESS Interlock testing of entire NM beamline enclosures (complete)• Interlock testing of Radiation monitors (complete)• Operating/Safety/ Warning limits calculated• AD Division Department Heads approvals & signatures• AD RSO approval & signature• AD Division Head approval & signature