Summary of Instrument Usage (1999-2015)
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Over the course of the facility history (1999-2015), we averaged 10.6 beam hours per day (365 day/year basis).
Note that extended maintenance periods occurred in 2004 (vacuum control development), 2005 (NMR/software upgrade),
and 2010 (primary and secondary column cleaning)
-
External NSF-sponsored users accounted for 21405 hours of analysis time.
This represents about 33% of the total usage over this interval or roughly 111 days
per year when expressed in terms of 12 hour days.
-
• Internal ion microprobe group members accounted for 31551 hours (48%). Of this time,
approximately 50% was devoted to NSF-sponsored projects.
Therefore, NSF's total share of instrument time has been 57% over the last sixteen years.
-
External non-NSF usage was 6671 hours or 8% of the total instrument
time. This work was funded by
NASA,
DoE,
NIST,
NIH,
California Department of Fish and Game,
PRF, and
other agencies.
-
Testing and development of new and existing instrumental
capabilities and analytical methods was 6079 hours or 9% of the
total instrument time. This category does not include down time
required for repairs or routine maintenance which is also an
important part of maintaining a facility.
Facility Usage Statistics
| Facility Usage |
1999 |
2000 |
2001 |
2002 |
2003 |
2004 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
2011 |
2012 |
2013 |
2014 |
2015 |
| Beam hours |
4025 |
3653 |
4178 |
4100 |
3102 |
3862 |
3458 |
3548 |
3612 |
3052 |
2803 |
4242 |
4267 |
4926 |
4373 |
3754 |
4749 |
| %efficiency |
45.9 |
41.7 |
47.7 |
46.8 |
35.4 |
44.1 |
39.6 |
40.5 |
44.8 |
34.8 |
32.0 |
48.4 |
49.4 |
57.0 |
50.6 |
43.5 |
55.0 |
| Beam Hours/day |
11.0 |
10.0 |
11.4 |
11.2 |
8.5 |
10.6 |
9.5 |
9.7 |
9.9 |
8.4 |
7.7 |
11.6 |
11.9 |
13.7 |
12.1 |
10.4 |
13.0 |
| Beam Time (%) |
| Ion Probe Group |
43.3 |
43.2 |
61.3 |
42.6 |
45.4 |
41.3 |
50.5 |
32.1 |
51.3 |
28.7 |
39.3 |
53.3 |
47.1 |
45.6 |
52.9 |
42.4 |
71.7 |
| External (NSF) |
40.6 |
44.0 |
20.4 |
40.2 |
41.9 |
44.3 |
37.9 |
41.5 |
28.1 |
43.5 |
39.9 |
25.4 |
29.7 |
32.6 |
25.0 |
28.1 |
17.0 |
| External (Other) |
8.7 |
3.4 |
5.0 |
5.5 |
3.4 |
6.2 |
3.3 |
7.8 |
13.0 |
11.5 |
4.3 |
9.8 |
15.6 |
12.2 |
19.2 |
23.2 |
7.1 |
| Testing & Devel. |
6.4 |
9.4 |
13.2 |
11.8 |
9.3 |
8.3 |
8.3 |
18.6 |
7.6 |
16.2 |
16.5 |
11.5 |
8.2 |
9.6 |
2.9 |
6.2 |
4.2 |