Mail-In 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 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.