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Next: Focusing the camera Up: Alignment of the cryostat Previous: With the telescope Contents
How to use cameras
4.2There are two CCD cameras, one for BNMR and one for BNQR. They can be used by imaging the beam spot or the sample position to (i) tune and center the beam on the sample for either BNMR or BNQR, (ii) align the BNMR cryostat, and (iii) align the sample on BNQR side. These cameras use ``peltier cooler'' to actively cool the CCD down to -30
, in order to minimize the background noise. The camera
needs a 12V DC power supplied through a USB box. The USB box also
provides the data link from a camera to bnmrpc.triumf.ca, where
the cameras are controlled and operated. Only one camera which
is connected to the USB box is active. In order to activate the
other, one has to switch the cables connected to the USB box.
Note: Do not switch camera cables while the computer program
used to operate the camera is running. First close the program
and only then switch the cables and restart the program again.
If you do not follow this procedure you will have to reboot
bnmrpc.triumf.ca to get the cameras running again.
For extra light a set of LED lights mounted on both cameras is used to
provide lighting if needed. In order to turn on these LED you need
to connect their power supply.
Subsections
Next: Focusing the camera Up: Alignment of the cryostat Previous: With the telescope Contents BNMR Web Site 2006-06-29
Page last modified: 07/23/09 02:45 by Andrew MacFarlane.