Instructions for use of Siemens D5000STD.pdf

-­‐‑ In the top ‘Menu Bar’, click ‘Diffractometer’ and select ‘Move Drives’. Untick
the ‘ ‘ boxes for the Div. and Antis. Slits.
Next, in the left hand panel of the ‘Adjust’ tab, choose the desired Rotation speed (if
any) and click ‘Set’. Do NOT rotate if scanning below 20 º2ϑ.
Next, the settings for a quick scan must be entered in the bottom panel of the ‘Adjust’
window in ‘XRD Commander’. This is largely self-explanatory:
Start angle, in º2θ Step size, in º2θ End angle, in º2θ
Scan speed, in
Deg/Min or Sec/Step
-­‐‑ Scantype should be ‘Locked Coupled‘ for phase analysis work. We can also
alternate between a Continuous (recommended for phase analysis work; much
kinder to the gearing) or Step Scan (very slightly more accurate) at the bottom.
-­‐‑ For phase analysis work, a ‘Start’ angle of ~ 5-20 º2ϑ is usually adequate,
-­‐‑ ‘Increment’: 0.02 is a good standard step size, though 0.05 is often best for
phase analysis work. 0.01 for unit cell refinement or residual stress analysis.
-­‐‑ Stopping at 60-80 º2ϑ, is adequate. The maximum angle permitted is 150 º2ϑ.
-­‐‑ ‘Scanspeed’ should be between 0.1 (will take many hours) and 2 (much faster)
Deg/Min. For phase analysis work, faster scans should be OK, especially when
combined with a step size of 0.05.
Press ‘Start’ when ready
REMEMBER: Save the data at the end of the scan:
Scan speed unit
selection
- click ‘File’ and ‘Save As’. Choose the Bruker AT ver2.0 format.
Start, stop, or
continue a scan
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