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sputter:pellet [2020/07/22 14:40] jacobs |
sputter:pellet [2020/07/27 14:08] (current) jacobs |
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====== Cesium Sputter Source Target Change ====== | ====== Cesium Sputter Source Target Change ====== | ||
- | ===== (Revised 4/15/2009; Rev. 17 Aug 2011; Rev. 26 April 2016) ===== | + | ===== (Revised 7/22/2020) ===== |
- Obtain proper target. Wear clean gloves when handling target and target holder. Determine if target is new or used. Used will have a blackened and scared tip. | - Obtain proper target. Wear clean gloves when handling target and target holder. Determine if target is new or used. Used will have a blackened and scared tip. | ||
+ | - Also, determine the proper Buncher Tube setting if you are changing beam species. This will be your only chance to set it. | ||
- Turn off DEL HIGH VOLTAGE POWER SUPPLY (Main Extractor Power) | - Turn off DEL HIGH VOLTAGE POWER SUPPLY (Main Extractor Power) | ||
- Record present value and decrease Cesium Reservoir Current by 50%, usually to about 0.125 amp. | - Record present value and decrease Cesium Reservoir Current by 50%, usually to about 0.125 amp. |