Re: Max Size on a Scan

Eric Martz (emartz@microbio.umass.edu)
Fri, 09 Jun 1995 13:15:03 -0500 (EST)

In message Tue, 06 Jun 1995 12:32:12 +0000, tony_ward@bdis.com writes:

> Regarding the uppersize limit of a scan: The cuvette is 180 x 80 micron.

Dear Tony Ward:

I was told earlier by someone at BD that the inside dimensions of the
FACScan flow cell are 180 x 430 micrometers. I've measured sheath
consumption at 14 ml/min, which translates to sheath velocity of 3 m/s
using the above numbers, and core stream diameters of 26 or 10 ("hi", "lo")
micrometers, which seems too large. Your dimesions would give a velocity
around 16 m/s and core stream diameters about 12 and 5 microns. Which is
correct?

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