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What is a Light Source?

X-Ray Status

X-Ray Calcs: Energy Analyzer

Angle Converter / Darwin Width
CXRO's / "X-Ray Interactions with Matter"

What type of crystals make up the monochromator?

Enter Theta 1 of the analyzer crystal in degrees:

Enter Theta 2 of the analyzer crystal in degrees:

Pick the Miller indicies for the first reflection:

Pick the Miller indicies for the second reflection:

Results:

Energy= keV. Wavelength= Å

Actual 1st Theta= °

Actual 2nd Theta= °

Offset= °

Note: The following are calculated with series solutions and are therefore approximate.

Structure factors:1st= 2nd=

Theoretical Darwin widths:
1st= arc sec. 2nd= arc sec.

Check to calculate energy resolution and fill in the following:

Pick the type of monochromator used:

Enter the monochromator angle in degrees:

Enter the FWHM for the first reflection in degrees:

Enter the FWHM for the second reflection in degrees:

Results:

Energy Spread (deltaE/E)= Or keV.

Divergence= radians.

Last Update: 2006-09-21


Cornell High Energy Synchrotron Source 200L Wilson Lab Rt. 366 & Pine Tree Road Ithaca, NY 14853

NCRR

NSF

NIGMS

What type of crystals make up the monochromator? Germanium Silicon

Enter Theta 1 of the analyzer crystal in degrees:

Enter Theta 2 of the analyzer crystal in degrees:

Pick the Miller indicies for the first reflection: 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9

Pick the Miller indicies for the second reflection: 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9

Results:

Energy= keV. Wavelength= Å

Actual 1st Theta= ° Actual 2nd Theta= °

Offset= °

Note: The following are calculated with series solutions and are therefore approximate.

Structure factors:1st= 2nd=

Theoretical Darwin widths: 1st= arc sec. 2nd= arc sec.

Check to calculate energy resolution and fill in the following:

Pick the type of monochromator used: Horizontal Bounce Single Crystal Up,Down,Up or Down,Up,Down Up,Down,Down or Down,Up,Up

Enter the monochromator angle in degrees:

Enter the FWHM for the first reflection in degrees:

Enter the FWHM for the second reflection in degrees:

Results:

Energy Spread (deltaE/E)= Or keV.

Divergence= radians.

What type of crystals make up the monochromator?

Pick the Miller indicies for the first reflection:

Pick the Miller indicies for the second reflection:

Actual 1st Theta= °

Actual 2nd Theta= °

Theoretical Darwin widths:
1st= arc sec. 2nd= arc sec.

Pick the type of monochromator used: