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playground:alpha [2010/07/16 16:00] 132.235.40.102 |
playground:alpha [2010/07/16 20:21] 184.57.89.126 |
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At the Control Console: | At the Control Console: | ||
- | 1. Check the source vacuum is less than 5x10-6 torr. | + | 1. Check the source vacuum is less than 5x10<sup>-6</sup> torr. |
In the Vault: | In the Vault: | ||
Line 46: | Line 46: | ||
Back at the Control Console: | Back at the Control Console: | ||
- | 1. Turn source magnet up to ~0.2 A. (likely already set) | + | 1. Turn source magnet up to ~0.2 A. (likely already set, and it can be as high as 1 A) |
- | 2. Turn up the source gas until the pressure on the source tc gauge is ~150 microns. | + | 2. Turn up the source gas until the pressure on the source tc gauge is between 300 and 500 microns (sometimes higher pressures are needed to start the source). |
3. Set the Arc Voltage to 150 V. | 3. Set the Arc Voltage to 150 V. |