Xcalibur II manual

OPERATION

6.5 Normal Operation

6.5.1 General Commands

6.5.1.1 Image Area Statistics, Zoom and Histograms

Position the Mouse cursor over the diffraction image window. Hold down the left mouse button and drag out a wire box around the area of interest. Click the right mouse button and select from various zoom options, area statistics / histograms, area pixel value replacement. The result is output to the right hand window.

Figure 6.5.1 Screenshot of Image selection and Zoom

Position the mouse cursor over a reflection of interest and click the right mouse button. Select

‘Integration at pixel position’ to output statistics at that pixel position.

6.5.1.2 Gt - Goto Angles Commands

When Xcalibur is not collecting data the goniometer axes can be driven to accessible positions using the following commands:

gt a om th ka ph

gt o om

gt t th

gt p ph goto angles with values omega (om), theta (th), kappa (ka) and phi (ph) goto omega angle ‘om’ goto theta angle ‘th’ goto phi angle ‘ph’

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OPERATION

6.5.1.3 Sm – Single Image Commands

Single image omega, phi and theta scan photos can be recorded using the following commands:

sm o startomegaangle scanwidth time

sm p startphiangle scanwidth time

sm t startthetaangle scanwidth time omega scan phi scan theta scan

6.5.1.4 Ty – Type Details Commands

The ty command allows the user to print a variety of current settings to the history window:

ty p ty u ty l

print current Xcalibur parameter settings print current UB matrix print current unit cell and lattice settings

ty t ty imageinfo

print current contents of peak table print information about the current image

6.5.1.5 Card – CCD Image Commands

On occasions the user may wish to record single diffraction / CCD camera images without the collection of dark images. This can be achieved using the following commands:

card raw time

card raw on time

Single CCD image without X-rays (time = in secs).

Single CCD image with X-rays (time = in secs).

6.5.1.6 Reinit – Card and Goniometer Reinitialisation Commands

If for any reason there is a communication problem between the Sapphire CCD or the Xcalibur goniometer and the control computer, then communication may be reinitialised via the commands:

card reinit gon reinit

reinitialise CCD to PC communication reinitialise goniometer to PC communication

6.5.1.7 System commands

The following commands may be issued to access the Windows system operations:

System dos

System explorer

spawns a MSDOS window with the current directory path being used in the CrysAlis program. spawns an Explorer window with the current directory path being used in the CrysAlis program

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