2011/04/22
| 1400 | Screw in polyethylene sheets of total 1.5“ thickness and 4” diameter to top of 30 mK stage. |
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| Figure 1: Polyethylene sheets fastened to top of 30 mK stage within can. |
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| 1550 | Fill N2 cold trap full. |
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| 2030 | Assemble tower. Two Am-241 sources in source holder fastened above G42. |