Changes for page Trigger Howto

Last modified by sndueste on 2023/07/07 11:28
From version 14.1
edited by grunewal
on 2019/12/06 13:59
Change comment: There is no comment for this version
To version 11.1
edited by sndueste
on 2019/09/17 14:56
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.grunewal
1 +XWiki.sndueste
Content
... ... @@ -5,13 +5,13 @@
5 5  = Introduction (user panel)
6 6   =
7 7  
8 -The MTCA based triggers have a jitter in the few ps range, the delay can be shifted in 1 ns steps (over many ms), one can choose between 10 Hz triggers, frequencies locked to the pulses (e.g. 1MHz) and the actual bunch patterns. A detailed description can be found in [[x2Timer manual>>attach:x2Timer.pdf]] ([[Design Paper>>url:http://ttfinfo2.desy.de/doocs/Timing/CDRv2.2short.pdf||shape="rect"]]).
8 +The MTCA based triggers have a jitter in the few ps range, the delay can be shifted in 1 ns steps (over many ms), one can choose between 10 Hz triggers, frequencies locked to the pulses (e.g. 1MHz) and the actual bunch patterns. A detailed description can be found in [[x2Timer manual>>attach:x2Timer.pdf]].
9 9  
10 10  in short: the triggers are for low impedance (~~50 OHM terminated ?? ), 5V triggers with an adjustable width. The main control panel for the x2 timer has the control options for the 3 front modules (connected with a RJ45 cable - connecting to a "trigger box" with 2 trigger exits (Lemo) each) and 8 Lemo exits at the back of the crate. in the BL-beamline case these triggers are connected to the BNC (patch panel) ports at the rack.
11 11  
12 -The main control can be done with a simplified user panel which can handle the timing in respect to the FEL pulses and not in respect to some (arbitrary) reference time ( Event)
12 +The main control can be done with a simplified user panel which can handle the timing in respect to the FEL pulses and not in respect to some (arbitrary) reference time ( Event)[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/TriggerHowto/Trigger_scheme.gif~|~|alt="Trigger_scheme.gif" width="800"~]~]>>attach:Trigger_scheme.gif]]
13 13  
14 -[[image:attach:Trigger_scheme.gif]]
14 +
15 15  \\
16 16  
17 17  = Different trigger events (starting points) =
... ... @@ -208,7 +208,7 @@
208 208  
209 209  There are 6 different bunch pattern "channels" one can configure. Typically only 2 are needed ... And in each one there are 6 selectors to choose sources . We only need one - it does not matter in which one is used.
210 210  
211 -[[~[~[image:attach:image2019-9-17_14-51-28.png~|~|height="250"~]~]>>attach:image2019-9-17_14-51-28.png]][[image:attach:image2019-9-17_14-47-15.png||thumbnail="true" height="199"]]
211 +[[image:attach:image2019-9-17_14-51-28.png||height="250"]][[image:attach:image2019-9-17_14-47-15.png||thumbnail="true" height="199"]]
212 212  
213 213  \\
214 214  
... ... @@ -218,7 +218,7 @@
218 218  
219 219  \\
220 220  
221 -[[image:attach:image2019-9-17_15-4-47.png||height="250"]][[image:attach:image2019-9-17_14-52-40.png||height="250"]]
221 +[[image:attach:image2019-9-17_14-52-27.png||height="248"]][[image:attach:image2019-9-17_14-52-40.png||height="250"]]
222 222  
223 223  \\
224 224