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Download BNMRfit istallation script Download BNMRfit Download BNMRminfit	With the telescope To adjust the cryostat position with telescope, at least two people are needed. One has to watch the cryostat position using the telescope, while the second person has to adjust the cryostat position and communicate with the viewer by a ``handy-phone''. First, change the position of the cryostat to Al position which has a specific pattern with concentric circles and a dot in the middle. Take out the CCD camera, and use instead the Halogen lamp (works with 12V, so use a DC power supply, model Xantrex LX 60-2, and set it first to 12 V with a digital voltmeter before connecting to the lamp). Place in the Halogen lamp instead of camera, and make use of telescope to see the hole of the cryostat centered. Make sure that all the valves between the telescope port and sample are open. Adjust the screws of the cryostat as before if needed. Here are some troubleshooting points that may help Check if the LED are on or off. Check if the cables are connected to the camera. Check if all sources of light are closed. Check if ion gauges are closed. Make sure the Faraday cups are open.
	Page last modified: 07/23/09 02:45 by Andrew MacFarlane.