Changes for page Trigger Howto

Last modified by sndueste on 2023/07/07 11:28
From version 24.1
edited by sndueste
on 2020/02/05 09:07
Change comment: There is no comment for this version
To version 27.1
edited by sndueste
on 2023/04/28 08:20
Change comment: There is no comment for this version

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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 9 ns steps, One can choose between 10 Hz triggers, Triggers connected to the (fast) FEL shutters,  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 9 ns steps, One can choose between 10 Hz triggers, Triggers connected to the (fast) FEL shutters,  frequencies locked to the pulses (e.g. 1MHz) and the actual bunch patterns. A detailed description can be found at the[[ N.A.T. webpage >>url:https://nateurope.com/product/namc-pstimer/||shape="rect"]].
9 9  
10 10  In short:
11 11  
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302 302  
303 303  \\
304 304  
305 +== Special trigger options for the fast shutter: ==
306 +
307 +=== Fast shutter inhibit signal ===
308 +
309 +It is possible to have the fast shutter inhibit signal (the signal coming from the fast shutter to the inhibit boxes connected to the X2 cards) directly available for users. For this one can select the output source as 2nd channel:
310 +
311 +[[image:attach:image2020-2-5_10-59-41.png||height="250"]]
312 +
305 305  \\
306 306  
315 +=== Inverse fast shutter trigger ===
316 +
317 +If one wants to have an inverse fast shutter trigger (10 Hz signal that comes only if the fast shutter is** CLOSED**) one can use a T and a small Lemo cable to double the input from the fast shutter  to another input at the inhibit box.
318 +
319 +In the FL2 case input1 is the regular fast shutter channel and input2 is usually not used. for this additional input one can set the input configuration to **inverse:**
320 +
321 +[[image:attach:image2020-2-5_14-11-55.png||height="400"]]
322 +
307 307  \\
308 308  
309 309  \\
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312 312  
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330 +
331 +\\