Difference between revisions of "Mail-In Bases"

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


The Large size is a ~ 2x larger diameter (~ 3x increase in scattering cross section) when compared with 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 scattering events normally gives higher quality data with better statistics.


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.
[https://wiki-ext.aps.anl.gov/ug11bm/index.php/Samples_with_Strong_X-Ray_Absorption#Guidelines_for_11-BM_Mail-In_Samples Users should consider the μ*r of their sample(s)].  An ideal μ*r value is ~ 1.0


Users should consider the μ*r of their sample(s). Read more here:
'''Important !!'''  ''If you plan to use a large diameter mail-in base and nest a smaller size coated Kapton tube, please send 11-BM staff an additional email directly after you request your bases and state this so we can be sure to send both size Kapton tubes.''
https://wiki-ext.aps.anl.gov/ug11bm/index.php/Samples_with_Strong_X-Ray_Absorption#Guidelines_for_11-BM_Mail-In_Samples


 
Please ask 11-BM staff ([email protected]) with any questions about which size is correct for your experiment.
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.

Latest revision as of 22:33, 28 August 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 a ~ 2x larger diameter (~ 3x increase in scattering cross section) when compared with 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 scattering events normally gives higher quality data with better statistics.

Users should consider the μ*r of their sample(s). An ideal μ*r value is ~ 1.0

Important !! If you plan to use a large diameter mail-in base and nest a smaller size coated Kapton tube, please send 11-BM staff an additional email directly after you request your bases and state this so we can be sure to send both size Kapton tubes.

Please ask 11-BM staff ([email protected]) with any questions about which size is correct for your experiment.

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