05 m 10 m 12 mr 145 mr 18.5  deflection: 40  OVERVIEW: UCN Facility in Meson Hall

SHIELDING (Schematic Layout)

 calculations by Anne Trudel: 40  A, 500 MeV protons stopping in tungsten tgt  assumes 0.5 m empty space around target (no moderator)  figure shows shielding needed to reduce dose to 3  Sv/hr outside shielding  integrating shielding gives 125 m 3 steel and 375 m 3 concrete not allowing for practicalities of stacking the blocks. CFI cost estimate  schematic layout, based on A.Trudel’s calc. s  $1820 K  Include stacking details of blocks (20% contingency) Latest cost estimate  Based on vendor quotes  $2111 K Possible Cost savings  Dose in Skyshine direction can be higher (-1m from top) Existing Concrete (10%, $125K), Special Shielding Blocks (detailed layout, graphite?,…) “New” Steel Blocks (plate thickness) SHIELDING Shielding Quotes: Concrete$1251 k Steel (radioactive)$ 360 k (66%) Steel (new)$ 480 k (33%)

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Main Focus of Recent Activities:  UCN Beamline design & cost estimates  Layout Installation Schedule with Vijay Verma UCN Beamline design & cost estimates (progress summary): - Shielding  working on 2 nd Iteration design and cost - Spallation Target & Remote Handling - Beamline Magnets & Power Supplies - Beamline Infrastructure - Cryogenics Schedule (progress summary): - Proposed Installation Schedule from Vijay Verma UCN Status: Update

OVERVIEW: Superfluid He UCN Source and EDM Exp.

05 m 10 m 12 mr 145 mr 18.5  deflection: 40  OVERVIEW: UCN Facility in Meson Hall (Note: New/updated drawing in ~ 2 weeks)

 calculations by Anne Trudel, assuming 40  A, 500 MeV protons stopping in tungsten target  assumes 0.5 m empty space around target (no moderator)  figure shows shielding needed to reduce dose to 3  Sv/hr outside shielding  integrating shielding gives 125 m 3 steel and 375 m 3 concrete not allowing for practicalities of stacking the blocks. 1 st Iteration  “schematic” shielding layout; cost estimate  $1820 K 2 nd Iteration  more refined; based on A.Trudel’s calculations  Include stacking details of blocks; other possible cost savings  New layout (~ 2 weeks) & recosting in progress (S.Austen/C.Davis) SHIELDING

Spallation Target  Remote Handling & Transportation Issues of concern (P.Bricault)  New calculations from Safety (A.Trudel) indicates target activity level after 10 years of irradiation will still be a factor of ~5 below the A 2 transport limit  Present Spallation Target conceptual design  Tungsten Cylinder, 30 mm (D) x 120 mm (L) Target Geom. Optimization (MCNPX code): Troy Dawson (U.W. grad student)  Cooling System: High Pressure He OR Water Discussions w/ P.Bricault, Y.Masuda, G.Clark & others  leaning towards Water  Discussion of conceptual design for Remote-Handling System (P.Bricault)  New Engineer being hired for Target/RH design (?)  Costing…(P.Bricault)  A stopping target of tungsten bombarded with 100 uA of 500 MeV protons.  Blue arrows correspond to 1, 5 & 10 years of irradiation.  Shown below the arrow is the total activity as a fraction of the A 2 transport limit.  The inventory of activity in the target at ten years is at approximately one fifth of the A 2 transport limit for Type A packages.

Beamline Magnets MagnetsDesign Power SupplyIssues. Kicker (1AK1)M.BarnesM.Barnes/ABBVector Fields calc. Switches  cost 1U SeptumG.ClarkG.ClarkRad-hardness Bender 1 (1UB1)G.Clark*M11 Bender (KR/DL/FM)Impact on BL1A D-Pace ?1B Bender (overkill) Retrofit existing ? Quad 1 (1UQ1)From M20From M20 Quad P.S.Refurbish Quad 2 (1UQ2)From M20From M20 Quad P.S. Bender 2 (1UB2)From PIFFrom PIFRefurbish

Preliminary Coil Design for UCN Kicker Kicker Power Supply Kicker Specs:  500 MeV protons (p = 1090 MeV/c)  15 mr maximum deflection (Bdl = Tm); normal deflection 12mr  effective length 1.5 m (physical available 2 m)  aperture 100 mm x 100 mm (possibly 130 mm horiz)  field uniform to  5% over central 80 mm diameter region  flat top 1 ms, flat to  5% over the 1 ms  fires every 3 ms (330 Hz rep. rate, able to run cont.)  can be re-configured (in <1 hr) to run as low as 100 Hz rep rate  power supply able to be located 10 m away

Beampipe & Hardware, Vacuum, Diagnostics, Controls, Safety, Services Cost Estimate  Discussions with A.Hurst & others  Relevant documents forwarded to Andy for review  Identify missing components in existing Resource Chart  Provide updated cost estimate for BL infrastructure Power Budget/Capacity  Discussions with F.Mammarella  Capacity of substation transf  Does not look like it should be a problem ( M11+M13  UCN )  Revisit after magnet P.S. details clarified  “New” load from He Liquifier needs to be included TRIUMF LHe capacity in 5YP  Enough to meet UCN requirements? Discussions with I.Sekatchev  UCN requirements can be met (and then some)  Igor’s proposed liquifier has enough capacity to service UCN as well as other Meson Hall expts (UCN requires ~1000 L.L./day) (Linde L140 can provide ~ 3300 L.L./day) Cost Estimates  Liquifier costs  5YP  UCN-incurred costs - He Transfer Lines - dependent on Liquifier siting/location (Chuck, Igor, Stu) Beamline Infrastructure Cryogenics

Vijay’s Proposed Installation Schedule for UCN (refining timetable & manpower) Installation Schedule 1* Remove M11 “cold” end (3 wk)Jan 2011 shutdown or Sep Remove M11-Q1, Q2, B1,(3 wk)Jan 2012 shutdown & blank off M11 septum 3 Remove M13-Q1 to Q7 (6 wk) 4* Remove PIENU (4 wk) 5 Take out 1BVB2 (1 wk)Jan 2013 shutdown Remove balance of 1B and PIF (3 wk) Install Kicker, Septum, 1UB1, 1UQ1-Q2, (5 mo) & restore shielding to allow 1A running 6* Install PIF in new location (6 wk) 7* Install 1UB2, Spallation Target, Shielding,(4 mo) Partially Jul-Dec 2012 (whenever possible) & UCN equipmentand finish between Jul 2013 – Apr 2014 * No shutdown required Task Shutdown Task 1 Task 2,3,4Task 5,6 Task 7

Installation Schedule & Manpower Requirements UCN INSTALLATION TASKS (Based on Vijay's and Des Ramsay’s notes of the 20 Nov 2009 meeting) TASK Remove M11 cold end.  No shutdown required. 3 weeks. 3 Techs + crane and riggers + some support from other groups Remove M11 (Q1,Q2,B1,blank off Septum)  Meson Hall shutdown only. 3 weeks. 3 Techs + remote handling + crane and riggers + support from other groups Remove M13 (Q1 to Q7)  Meson Hall shutdown only. 6 weeks. 3 Techs + crane and riggers + some support from other groups Remove PIENU  No shutdown required. Can be done anytime once PIENU finished. 4 weeks. 3 Techs + crane and riggers + some support from other groups Take out 1BVB2. Kicker will go here. 1BVB2 will also be used on UCN.  Requires Cyclotron shutdown (vault access) 1 week. 3 Techs + crane and riggers + some support from other groups Remove balance of beamline 1B and PIF  Requires Cyclotron shutdown (at least for upstream 1B). 3 weeks. 3 Techs + crane and riggers + some support from other groups Install Kicker, Septum, 1UB1, 1UQ1, 1UQ2, and restore enough shielding to run Meson Hall. To make room for the shielding, may be necessary to leave 1UQ1 and/or 1UQ2 out temporarily  Requires vault and meson hall access. 5 months. 4 Techs, crane and riggers, support from other groups Install 1UQ1 and 1UQ2 if not installed during the long shutdown.  Requires meson hall shutdown only. 4 weeks. 3 Techs + crane and riggers + some support from other groups Install PIF in new location.  No shutdown required. 6 weeks. 3 Techs + crane and riggers + some support from other groups Install 1UB2, spallation target, shielding, UCN equipment.  No shutdown required. 4 months. 3 Techs + crane and riggers + some support from other groups In addition, 6 months or so of prep work will have to be done refurbishing magnets, installing water headers on magnets, preparing vacuum boxes and stands,etc. I guess this would tie up mostly beamlines techs. Total “Shutdown” Time(s):Cyclotron shutdown5.5 months At least meson hall shutdown 3 months No shutdown required 6.5 months

UCN Important Dates Dec 5-15 UCN Experiment Run at RCNP-Osaka Jan UCN Collaboration Meeting at TRIUMF ???Gate 2 Review at TRIUMF Late MarchCFI Re-submission Apr 8-9UCN Workshop at RCNP-Osaka

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Jeff Martin SHIELDING (1 st Iteration): How much room does it need? 1 st Iteration costing 

Example of Proton Beam Sharing  A 80  A 40  A 120  A 0  A 1 min.4 min. meson hall UCN source

Proposed time division of beam 10  s to 40  s 2/3 beam to  SR 1/3 beam to UCN normal TRIUMF beam, 4 min ms 2 ms 1 ms 1 min. 120  A

A stopping target of tungsten bombarded with 100 uA of 500 MeV protons. Blue arrows correspond to 1, 5 and 10 years of irradiation. Shown below the arrow is the total activity as a fraction of the A 2 transport limit. The inventory of activity in the target at ten years is at approximately one fifth of the A 2 transport limit for Type A packages. Anne Trudel

Preliminary Coil Design for UCN Kicker Mike Barnes

UCN Kicker Mike Barnes

Kicker Specs:  500 MeV protons (p = 1090 MeV/c)  15 mr maximum deflection (Bdl = Tm); normal deflection 12mr  effective length 1.5 m (physical available 2 m)  aperture 100 mm x 100 mm (possibly 130 mm horizontal)  field uniform to  5% over central 80 mm diameter region  flat top 1 ms, flat to  5% over the 1 ms  fires every 3 ms (330 Hz rep. rate, able to run continuously)  can be re-configured (in <1 hr) to run as low as 100 Hz rep rate  power supply able to be located 10 m away rise/fall time (  s) turnsinductance (  H) flattop current peak voltage A4500 V A2900 V A2500 V Examples:

Kicker Power Supply

Ramp-Up: SW1 and SW2 are closed, magnet ramps up from the high voltage + -

Kicker Power Supply End of Ramp-Up: + - SW1 is opened. Current circulates through D3, D1, and SW2

Kicker Power Supply Flat Top: + - SW3 closes as required to maintain the flattop with the low voltage supply + -

Kicker Power Supply Ramp-Down: + - All switches open. Current is against the HV for fast ramp down. Stops at I=0 when diodes become back biased.

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Layout in Area B 800 MeV protons UCN Source beta- spectrometer polarizer magnet

proton beam direction shield package UCN port remote extraction

Schematic of Superfluid He UCN Source Yasuhiro Masuda