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playground:sputter
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playground:sputter [2017/03/06 15:40] jacobs |
playground:sputter [2017/03/20 09:51] jacobs |
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| - Turn up the **ionizer** heater. The ionizer operates at 21-22 amps. Keep in mind that the current will fall slightly as the ionizer gets warmer. Keep adjusting the current until the ionizer is stable at 21-22 A. It should take about 1 minute to reach 21 A from the standby value of 10 A. | - Turn up the **ionizer** heater. The ionizer operates at 21-22 amps. Keep in mind that the current will fall slightly as the ionizer gets warmer. Keep adjusting the current until the ionizer is stable at 21-22 A. It should take about 1 minute to reach 21 A from the standby value of 10 A. | ||
| - Turn up the Cesium **feed tube** heater to 0.450 amperes. | - Turn up the Cesium **feed tube** heater to 0.450 amperes. | ||
| - | - Set the cesium **reservoir** heater current to 0.400 Amps. This is an approximate value above the needed power level. You may use the digital or analog meter to set this value. | + | - Set the cesium **reservoir** heater current to **0.315** Amps. This is an approximate value above the needed power level. |
| - Set the Glassman **extractor** power supply to 12.5 KV. Check to be sure the current is less than about 5 milliamps and the "control milliamperes" light is NOT lit. High current indicates that the source needs to be serviced. | - Set the Glassman **extractor** power supply to 12.5 KV. Check to be sure the current is less than about 5 milliamps and the "control milliamperes" light is NOT lit. High current indicates that the source needs to be serviced. | ||
| - Set the Glassman **target** power supply to 6.5 kV. Check to be sure the current is less than about 5 milliamps and the "control milliamperes" light is NOT lit. High current indicates that the source needs to be serviced. A newly installed pellet may cause instability for the first hour or so, but will become stable. | - Set the Glassman **target** power supply to 6.5 kV. Check to be sure the current is less than about 5 milliamps and the "control milliamperes" light is NOT lit. High current indicates that the source needs to be serviced. A newly installed pellet may cause instability for the first hour or so, but will become stable. | ||
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| ** Shut Down Procedure ** | ** Shut Down Procedure ** | ||
| - | - **Cesium reservoir**: The reservoir has a temperature controller that turns the power on/off as needed for a constant temperature. The controller is located next to the analog temperature meter on the source power platform. The red numbers are the measured temperature, the green numbers are the set point temperature, there is a small red light that indicates when the controller is calling for power. The reservoir current switches between 0 and .400A as directed by the controller. | + | - **Cesium reservoir**: The reservoir has a temperature controller that turns the power on/off as needed for a constant temperature. The controller is located next to the analog temperature meter on the source power platform. The red numbers are the measured temperature, the green numbers are the set point temperature, there is a small red light that indicates when the controller is calling for power. The reservoir current switches between 0.150A and .315A as directed by the controller. |
| - | - Wait until the reservoir controller's red power light is on and you can see about .400A reservoir current on one of the meters, run the reservoir current to zero on either the digital or analog meters. Make sure that you see controller red light on with zero amps of current. | + | - Wait until the reservoir controller's red power light is on and you can see about .315A reservoir current on the meter, run the reservoir current down on the digital meter. Make sure that you see controller red light on with minimal amps of current. |
| - Wait for the reservoir temperature (red numbers on controller) to drop below** 85**° C. | - Wait for the reservoir temperature (red numbers on controller) to drop below** 85**° C. | ||
| - Turn down the feed tube power supply. | - Turn down the feed tube power supply. | ||
playground/sputter.txt · Last modified: 2023/08/22 07:50 by carter
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