Changes for page Trigger Howto

Last modified by sndueste on 2023/07/07 11:28
From version 23.1
edited by sndueste
on 2020/01/23 16:18
Change comment: There is no comment for this version
To version 24.1
edited by sndueste
on 2020/02/05 09:07
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -11,7 +11,7 @@
11 11  
12 12  * the triggers are for low impedance (~~50 Ohm )
13 13  * signal level is + 5V - otherwise 0V (in the expert panel one can also invert the signal - base line is +5 V and trigger 0V)
14 -* The trigger are send to the MTCA several ms before the first FEL pulse (3.1 ms for the "standard" trigger, 23 ms for the "early" trigger).
14 +* The trigger are send to the MTCA several ms before the first FEL pulse (3.1 ms for the "standard" trigger, 21.5 ms for the "early" trigger).
15 15  * The timer card can delay the trigger in 9 ns  steps for more than 100 ms (an option to shift the trigger in 1 ns steps is available in the expert panel)
16 16  * The shown delay in µs is in respect to the //first// FEL pulse. negative delay: trigger comes before FEL, positive : trigger comes after the FEL.
17 17  * The desired delay has to be entered in the "delay to be set" field and as second step pressing the "set delay" sends the delay value to the timer card. Then the trigger delay will be changed and the "actual delay" will be updated.