1. Absorber Home works RIKEN/RBRC Itaru Nakagawa

2. Machining MachineDepth PitchSpeed FactoryFraise0.5 ~ 2 mm 40 ~ 50 m/min Test BenchLathe1 mm78 m/min.

3. B-Field Measurement B=500Gauss probe B=500Gauss probe Before machining After machining  d=0.1mm Pitch  r=0.1mm Pitch

4. Measured Results SUS303w/o samplew sampleSUS304w/o samplew/ samle Before 131.7132.7 Before 130.3152.2 131.6133.0130.3152.3 131.4133.0130.0152.7 131.6133.0Average130.3152.7 132.9131.6 After 131.3151.0 Average131.8132.7130.4151.8 After 132.2131.0130.3151.4 130.8131.0130.2150.4 131.0130.1149.3 Average131.5131.0130.0150.5 130.0 Average130.3150.7

5. Material (SUS310) Supplier Metal Plate [mm]ProductionQuoteDelivery [week] Daido Steel Co.350 t mm (1body) Forging (1layer) $252k12 weeks Nippon Yakin Co. via TIME 50 t x1200x4000 (4) 45 t x1200x3300(4) Plate (8layers) $144k 6 - 8 weeks Shima Metals50 t ×1170×2340 (14) Plates (7layers) $157k ($9.1/kg) 8 – 10 weeks Fuji Kogyo (via Giken) 210 t x1120x1120 (4) 180 t x987x987 (4) Forging (2layers) $320k4 weeks 70tPlatesNext week NAS Trading Co.50 t ×1170×2340 (28)Plates10 weeks 5 Very likely no stock available. Need to produce. Production ~ 1 week. Waiting > 7 weeks.

6. Summary for Both Arms Case-1CompanyCostDelivery MaterialShima Kogyo$270k8 – 10 weeks MachiningYagishita Giken$23.5k x 2?4 weeks minmum ShippingMaruwn$4.65k4 – 5 weeks Total$300+k15 – 18 weeks 6 Case-2CompanyCostDelivery MaterialNippon Yakin$252k 8 - 10 weeks MachiningTIME$45k2 + 1 + 1 weeks ShippingMaruwn$4.65k4 – 5 weeks Total$300k15 + weeks Yagishita has only 2 machine centers, while TIME has 5.

7. SUS304 50 t mm? Plates are in stock. Confirmed for one arm amount by Inoue Material. They can get plates within 2 weeks.

8. Budget Transfer Issue

9. Scenario 1 UIUC RIKEN BNL REPIC Bid REPIC Company A Material ~$300k $50k $250k$100k Company B Machining ~$50k Can BNL/UIUC issue a purchase order to REPIC w/o bidding? Absorber Project

10. Scenario 2 UIUC RIKEN BNL Bid Company A Material ~$300k $50k $250k$100k Company B Machining ~$50k Project C Project B RIKEN Administration Absorber Project

11. Scenario 3 UIUC RIKEN BNL Bid Company A Material ~$300k $50k $250k$100k Company B Machining ~$50k Absorber Project

12. Construction in US

13. Scenario 1 UIUC RIKEN BNL Bid REPIC $50k$250k $100k Company B Bid Bid in JapanNorth arm South arm