Setup Notes

1. Unloaded all stuff

2. Get out lab notebook
a. Tape in the checkout list

3. Get stuff ready for Cryostat:
a. There's three temperature controlers- #1 is for probe A: #2 is for the cryostat: #3 is for probe B (be sure to use the right sensor port bc they are calibrated for that specific probe)
b. You need to use the shorted connector on the unused controller port
c. feed the cables through into the hutch
d. inside the hutch plug everything into the cryo- the black mark on the probe is for the
temperature controller- no mark is for the osciallator (if its being used)- the last cable is
plugged into the cryo
e. get power in the hutch
f. get out the aluminum mounting plate to connect the cryostat to the stepper motors
g. put it together with the cryo hanging off the motor UPSTREAM: move the vertical plate connection point where it needs to be so that the cryo's windows are centered in the beam. Make sure that the motor is not at its limit, preferably centered.
h. next, connect the turbo pump to the cryostat- keeping the valve closed, turn on the pump to make sure its working correctly, then open the cryo valve and wait for it to pump down
i. check the detectors- gas is flowing, have enough gas for the run, get them aligned, use the correct gain for each of them (you don't want the detector to read more than 6V and less than 0.1V-usually)

4. Oscillator setup notes:
a. the sample is mounted in the same vertical position as slot 8 (1.86" from mounting holes)
b. the sample is mounted on the probe that was designed for 15 deg alignment, so you need to set it 3 marks off from a 45 deg mark (45-30=15deg)
c. be sure to note the orientation of the oscillator before putting it in the cryo
d. every time you take the probe out, check to make sure the coils haven't moved
e. follow Geza' Kurczveil's Manual on the electronic setup of the oscillator:
-i) in short- pwr, signal generators, oscilascope, connect output signal from box to scope, using DC mode on the scope- adjust the position of zero,
use the DC off-set on the sig. generators to make sure the output isn't clipping, then use the pots on the box to center the sine wave

5. Alignment
a. First do an "eye-ball" check of the vertical and horizontal alignment- do this wrt the windows
b. Secondly, get an idea of what the sample looks like (for powder this isn't an issue)
c. Make sure you start with the slits realatively wide open (~0.7mm vert x ~10mm horiz unfocused powder- THIS IS A RULE OF THUMB) (if you are doing single crystal- start much bigger, maybe 2mm vert x 20 mm horiz)
d. Do vertical and horizontal scans to get an idea of where the sample is located
e. Close the slits down (~0.7mm x ~10mm) if they are bigger
f. Do another scan