At 03:11 PM 4/22/2008, you wrote:
>In my experience 27% use (9 am - 6 pm M-F) is a
>pretty good number and numbers over 30% begin to
>lead to bitching and finger-pointing among
>users. Higher use numbers are possible on big
>(600+) machines because they are dominated by
>long-term experiments (1-3 days or more) where
>the user is not present most of that time. But
>for routine applications appropriate for
>synthetic chemists, it's hard to get more than 30%.
The spectrometer use figures depend very much on
how or whether you include overnight experiments.
To satisfy my own curiosity I checked the use on
our most heavily used spectrometer.
The average for the year 2007 was 30% with wide month-to-month fluctuations.
The month of January was extreme when the use shot up to 65%,
mostly due to one student who was finishing her
PhD thesis and wanted to get some "pretty" spectra.
Without her overnight and weekend runs the use
for that month was actually only 15%.
Maybe those extreme cases should be excluded from the average.
Jürgen
Jürgen Schulte, Ph.D. Ph.: 607-777-4405
NMR Specialist Fax: 607-777-4478
Binghamton University - Chemistry Department
4400 Vestal Parkway East
Binghamton, NY 13902-6000
mailto:schulte_at_binghamton.edu
http://www.chem.binghamton.edu/staff/schulte
Received on Fri Apr 25 2008 - 09:27:44 MST