Difference between revisions of "Mail-In Bases"

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Users can now select 2 sizes of sample mounting bases:
Users can now select 2 sizes of sample mounting bases:


*'''Standard''' bases:  0.8 mm diameter capillary.  This is the standard size used for the mail-in program for several years    
*'''Standard''' bases:  0.8 mm diameter capillary.  This is the standard size used for all mail-in measurements prior to 2013.    


*'''Large''' bases: 1.5 mm diameter capillary.  ''New for 2013''
*'''Large''' bases: 1.5 mm diameter capillary.  ''New for 2013''




The Large size is ~ 2x larger than the standard 0.8 mm diameter Kapton tube capillary.  These larger capillaries are allow users with low Z, or low X-ray scattering, samples to place more sample into the beam during the measurements.  More scatterings normally gives highly quality data with better statistics.


Large diameter sample capillary (1.5 mm diameter, ~ 2x larger than the default 0.8 mm diameter Kapton tube capillary).
Users should consider the μ*r of their sample(s). Read more here:
https://wiki-ext.aps.anl.gov/ug11bm/index.php/Samples_with_Strong_X-Ray_Absorption#Guidelines_for_11-BM_Mail-In_Samples


These larger capillaries are available now for 11-BM mail-in users by special request.
 
one must lower its effective packed density or reduce its radius.
 
More info will be placed here soon.  Please ask 11-BM staff with any questions about which size is correct for your experiment.

Revision as of 22:50, 29 April 2013

Users can now select 2 sizes of sample mounting bases:

  • Standard bases: 0.8 mm diameter capillary. This is the standard size used for all mail-in measurements prior to 2013.
  • Large bases: 1.5 mm diameter capillary. New for 2013


The Large size is ~ 2x larger than the standard 0.8 mm diameter Kapton tube capillary. These larger capillaries are allow users with low Z, or low X-ray scattering, samples to place more sample into the beam during the measurements. More scatterings normally gives highly quality data with better statistics.

Users should consider the μ*r of their sample(s). Read more here: https://wiki-ext.aps.anl.gov/ug11bm/index.php/Samples_with_Strong_X-Ray_Absorption#Guidelines_for_11-BM_Mail-In_Samples 


one must lower its effective packed density or reduce its radius.

More info will be placed here soon. Please ask 11-BM staff with any questions about which size is correct for your experiment.

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