Elettra statistics

The Elettra's statistics is calculated in real time and displayed on the main page of the Electronic Logbook used in control room.

The definition of uptime % = 100 - downtime%
The beam downtime is defined as the percentage of User Non usable beam time (No or bad beam excluding storms and other external factors) divided with the total user hours (minus 20 minutes for every programmed injection).
Downtime% = 100*(no or bad beam time-storms)/(user time - inj. time).
In same cases some extra time is given to the users. this period is considered as an extension of scheduled beam program, so the downtime formula become:
Downtime% = 100*(no or bad beam time-storms)/(user time + extension time  - inj. time)

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Stefano KRECIC

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Last Updated on Friday, 23 December 2011 12:33