Changes for page Gotthard related stuff

Last modified by sndueste on 2023/09/25 09:36
From version 19.1
edited by sndueste
on 2023/09/25 09:36
Change comment: There is no comment for this version
To version 8.1
edited by palutke
on 2023/06/08 14:23
Change comment: There is no comment for this version

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1 -XWiki.sndueste
1 +XWiki.palutke
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1 -=== page content: ===
1 +== Info related to the Detector ==
2 2  
3 -== ==
4 -
5 -{{toc maxLevel="2"/}}
6 -
7 7  \\
8 8  
9 -----
10 -
11 -== Info collection related to the Detector ==
12 -
13 13  * [[Data sheet of a macro objective>>attach:MP-E_65mm_F2.8_1-5x_Instruction_DE.pdf]]
14 14  * [[FLASH-GH-Meeting_10.10.2014.pdf by Steffen>>attach:FLASH-GH-Meeting_10.10.2014.pdf]]
15 15  * [[attach:READ_ME_GOTTHARD_detector.pdf]]: READ_ME_GOTTHARD_detector.pdf (Server information is outdated, see below)
16 -* some investigation related to read out noise for different exposure times [[attach:GOTTHARD noise evaluation and exposure time dependence (002).pdf]]
17 17  
18 18  \\
19 19  
20 -Ethernet and trigger  connections:
11 +Ethernet connections:
21 21  
22 -[[image:attach:20230922_161707_resized.jpg||thumbnail="true" height="250"]]
23 -
24 24  (% style="list-style-type: square;" %)
25 -* trigger at port 1
26 26  * gbit port  <~-~-->  Server PC (hasfl2det01 at FLASH2, no server currently at FLASH1)
27 27  * base-T     <~-~-->  Office net
28 28  
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45 45  
46 46  \\
47 47  
48 -\\
49 -
50 -== Operation hints (June 2023): ==
51 -
52 -(% style="list-style-type: square;" %)
53 -* **Where is the GOTTHARD GUI:** FLASH2 - Panel: Infrastructure tab → Miscellaneous tab → FLASH2 GOTTHARD ctrl button
54 -* **Never change a running system:** Do not change parameters while the Detector is running/taking data, The detector will crash.
55 -* Furthermore the module will crash if recieving to much light (e.g. illuminating with flash light during data dating.
56 -* **Checking/switching server:** The server is reachable from the GOTTHARD GUI (lower left corner find the status of the server PC "hasfl2det01") click it to open server/watchdog control. The server is otherwise found under FLASH.SYSTEM → HASFL2DET01.WATCH. Open control of SVR.GOTTHARD (for start/stop/reboot)
57 -
58 -(% style="list-style-type: square;" %)
59 -* **Robooting the GOTTHARD** (if it has crashed): 
60 -(% style="list-style-type: square;" %)
61 -** soft reboot: 1. open console on linux DESY PC, 2. type "telnet (Hostname/IP)" e.g. "telnet cfeld-gotthard02" , 3. you are logged on the GOTTHARD module as /root, type "reboot", 4. wait until server/GUI has reconnected to the module
62 -** hard reset: power down the GOTTHARD, wait some seconds, Repower the module, wait for reconnection to server/GUI
63 -* **In case of a crashes** (no data taking, no reaction on input: Reboot the detector) or if GUI input returns error: Check connection (Power/Data), check GOTTHARD server
64 -* **Permantent operation:** Activate check box for continous run to trigger automated restart of the module after reaching the set number of short or after sefl-stopping due to hickups. The restart needs about 1-2 seconds. During this time no data is taken.
65 -* **Background**: Check "Take" stores the actual detector image~: Uncheck this again. Than this stored image is online subtracted from all images in the GUI when checking "subtract". The DAQ only stores raw data (NOT the background subtracted images)
66 -
67 -Using burst mode (standard operation as of June 2023)
68 -
69 -(% style="list-style-type: square;" %)
70 -* Do not change the delay in the GOTTHARD GUI. The Alignment to the FEL pulses are done by adjusting the FLASH trigger: FL2EXP1/RTM.TRG6, it can be opened from the GOTTHARD GUI or from FLASH2 → Beamlines → FL26 → Exp. control → Patch Panel26-2 → MTCA Trigger 2
71 -* Exposure range is 2**00ns <  Exposure < ~~1/3 * Frame periode**
72 -* The periode is:** 9968ns for 100kHz, 4984 for 200kHz, 1993 for 500kHz**
73 -* The number of** frames must be lower than 125, for stable operation 120**
74 -* Number of Shots: Number of trigger events before self stopping, select large number for permanent operation
75 -
76 76  == Modules and their exchange ==
77 77  
78 78  Two (Three) modules available (physically at FLASH):
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88 88  Sensor image
89 89  )))|=(((
90 90  config file
91 -)))|=(% colspan="1" %)(((
92 -DOOCS address (status 2023)
93 93  )))
94 94  |(((
95 95  cfeld-gotthard02
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107 107  )))
108 108  )))|(((
109 109  bchip_mpc1922Receiver.config_cfeld-gotthard02
110 -)))|(% colspan="1" %)(((
111 -FLASH.FEL/GOTTHARD/FL2/
112 112  )))
113 113  |(((
114 114  hasdslabgh
115 -
116 -"gotthard dgt01"
117 117  )))|(((
118 118  working
119 119  )))|(((
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125 125  )))
126 126  )))|(((
127 127  bchip_mpc1922Receiver.config
128 -)))|(% colspan="1" %)(((
129 -FLASH.FEL/GOTTHARD2/FL2/
130 130  )))
131 131  |(((
132 132  cfeld-gotthard01
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138 138  \\
139 139  )))|(((
140 140  bchip_mpc1922Receiver_petra.config
141 -)))|(% colspan="1" %)(((
142 -\\
143 143  )))
144 144  
145 145  \\
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156 156  
157 157  == Main Parameters and limits ==
158 158  
159 -(% class="wrapped" %)
160 160  |=(((
161 161  Parameter
162 162  )))|=(((
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205 205  * type: "reboot"
206 206  (% style="list-style-type: square;" %)
207 207  ** the module reboots (wait ~~1-2 min), the telnat connection will be cut due to reboot.
208 -
209 -\\
210 -
211 -== Triggering the Gotthard with a burst trigger ==
212 -
213 -it is also possible to trigger the Gotthard not only with 10 Hz but with a burst trigger
214 -
215 -here are some Info from PIS (June 2023)
216 -
217 -
218 -
219 -{{view-file att--filename="Flash_G1.pdf" height="250"/}}
220 -
221 -I think one does not need to set it in GUI when running in continuous mode. In G1, whether the detector is running in burst or continuous mode depends on the setting of the "number of frames" in trigger mode. If the number of frames sets to 1, it will be in continuous mode (1 trigger -> 1 frame).
222 -
223 -Since G1 accepts triggers from the lemo connector, one can also use the bunch train trigger. The spacing of the trigger train needs to be larger than 3.2 ms, which is the readout time of G1.
224 -
225 -Regarding the detector setting (assuming it is 200 kHz pulse rate, 100 pulses per train):
226 -
227 -* timing mode: trigger
228 -* number of frames: 1
229 -* number of triggers:  M x N (M is the number of trains and N is the pulses per train, one can also take a bit more frames per train to track the pedestal/dark)
230 -* period: < 5 us (1/200 kHz = 5 us, the period needs to be slightly smaller than 5 us since the detection of the trigger only starts after the period is reached)
231 -* exposure time: > 93 ns and smaller than period
232 -
233 -Alignment: One of the four lemo connectors on G1 outputs its exposure window. Using an oscilloscope, one can use a photodiode under the beam and align the pulses from the diode and the exposure window of G1 by fine tuning the exposure time of G1 and/or the setting of "delay after trigger" from the detector, or "delay time" of the wave-generator (if a wave-generator is used to generate the triggers for every pulse). After this, one can do a fine scan of trigger delay to find an optimal setting with highest signal after putting G1 under the beam.
234 -
235 -\\
236 -
237 -by:
238 -
239 -Dr. Jiaguo Zhang
240 -
241 -Paul Scherrer Institut
242 -
243 -Forschungsstrasse 111
244 -
245 -5232 Villigen PSI
246 -
247 -Switzerland
248 -
249 -\\
250 -
251 -== Using the Spectralyzer together with Gotthard ==
252 -
253 -one needs spectralyzer 0.2.4 or newer
254 -
255 -\\
256 -
257 -start spectralyzer on one of our consoles ( works for fl24 and fl26user )  (for installing new version or for other users .. ask Christopher Behrens... )
258 -
259 -(% class="code" %)
260 -(((
261 -fl26user@hasfcons1:~~$ mamba activate spectralyzer
262 -(spectralyzer) fl26user@hasfcons1:~~$ spectralyzer
263 -)))
264 -
265 -\\
266 -
267 -[[image:url:https://ttfinfo.desy.de/Flash2_FL26elog/data/2023/06/2023-02-10T16:03:53-00.jpg||height="250"]]
268 -
269 -[[image:attach:image2023-9-15_11-16-3.png||height="400"]]
270 -
271 -\\
272 -
273 -\\
274 -
275 -\\
276 -
277 -\\
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FLASH-GH-Meeting_10.10.2014.pdf
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Flash_G1.pdf
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GOTTHARD noise evaluation and exposure time dependence (002).pdf
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MP-E_65mm_F2.8_1-5x_Instruction_DE.pdf
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READ_ME_GOTTHARD_detector.pdf
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