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Changes for page Gotthard related stuff

Last modified by sndueste on 2025-08-22 10:41
From version 14.1
edited by sndueste
on 2023-09-08 09:10
Change comment: There is no comment for this version
To version 20.1
edited by sndueste
on 2025-08-22 10:41
Change comment: There is no comment for this version

Summary

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1 +FLASHUSER.Misc.jddd-linked help pages.WebHome
Content
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1 -== Info related to the Detector ==
1 +== page content: ==
2 2  
3 -\\
3 +{{toc maxLevel="2"/}}
4 4  
5 +
6 +== Info collection related to the Detector ==
7 +
5 5  * [[Data sheet of a macro objective>>attach:MP-E_65mm_F2.8_1-5x_Instruction_DE.pdf]]
6 6  * [[FLASH-GH-Meeting_10.10.2014.pdf by Steffen>>attach:FLASH-GH-Meeting_10.10.2014.pdf]]
7 7  * [[attach:READ_ME_GOTTHARD_detector.pdf]]: READ_ME_GOTTHARD_detector.pdf (Server information is outdated, see below)
8 8  * some investigation related to read out noise for different exposure times [[attach:GOTTHARD noise evaluation and exposure time dependence (002).pdf]]
9 9  
10 -\\
11 11  
12 -Ethernet connections:
13 13  
14 -(% style="list-style-type: square;" %)
15 +Ethernet and trigger  connections:
16 +
17 +[[image:attach:20230922_161707_resized.jpg||thumbnail="true" height="250"]]
18 +
19 +(% style="list-style-type:square" %)
20 +* trigger at port 1
15 15  * gbit port  <~-~-->  Server PC (hasfl2det01 at FLASH2, no server currently at FLASH1)
16 16  * base-T     <~-~-->  Office net
17 17  
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19 19  
20 20  for now very short: run the Exp2 DAQ with EXPERIMENT_GOTTHARD included as shown below. AND press the start button in the Gotthard DAQ (you get there from the Gotthard panel lower left button "Gotthard DAQ"
21 21  
22 -\\
23 23  
24 24  * Main Gotthard panel for users :
25 25  
26 26  [[image:attach:Clipboard05.gif||height="400"]]
27 -\\
32 +
28 28  
29 -\\
30 30  
31 31  * Exp2 DAQ RC gui for recording Gotthard data. EXPERIMENT_GOTTHARD has to be included
32 32  
33 33  [[image:attach:Clipboard01.gif||height="400"]]
34 34  
35 -\\
36 36  
40 +
37 37  == Operation hints (June 2023): ==
38 38  
39 -(% style="list-style-type: square;" %)
43 +(% style="list-style-type:square" %)
40 40  * **Where is the GOTTHARD GUI:** FLASH2 - Panel: Infrastructure tab → Miscellaneous tab → FLASH2 GOTTHARD ctrl button
41 41  * **Never change a running system:** Do not change parameters while the Detector is running/taking data, The detector will crash.
42 42  * Furthermore the module will crash if recieving to much light (e.g. illuminating with flash light during data dating.
43 43  * **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)
44 44  
45 -(% style="list-style-type: square;" %)
49 +(% style="list-style-type:square" %)
46 46  * **Robooting the GOTTHARD** (if it has crashed): 
47 -(% style="list-style-type: square;" %)
51 +(% style="list-style-type:square" %)
48 48  ** 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
49 49  ** hard reset: power down the GOTTHARD, wait some seconds, Repower the module, wait for reconnection to server/GUI
50 50  * **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
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53 53  
54 54  Using burst mode (standard operation as of June 2023)
55 55  
56 -(% style="list-style-type: square;" %)
60 +(% style="list-style-type:square" %)
57 57  * 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
58 58  * Exposure range is 2**00ns <  Exposure < ~~1/3 * Frame periode**
59 -* The periode is:** 9968ns for 100kHz, 4984 for 200kHz, 1993 for 500kHz**
60 -* The number of** frames must be lower than 125, for stable operation 120**
63 +* The periode is:** 9968ns for 100kHz, 4984 for 200kHz, 1993 for 500kHz**
64 +* The number of** frames must be lower than 125, for stable operation 120**
61 61  * Number of Shots: Number of trigger events before self stopping, select large number for permanent operation
62 62  
63 63  == Modules and their exchange ==
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64 64  
65 65  Two (Three) modules available (physically at FLASH):
66 66  
67 -(% class="wrapped relative-table" style="width: 64.2451%;" %)
71 +(% class="relative-table wrapped" style="width:64.2451%" %)
68 68  |=(((
69 69  hostname
70 70  )))|=(((
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75 75  Sensor image
76 76  )))|=(((
77 77  config file
82 +)))|=(% colspan="1" %)(((
83 +DOOCS address (status 2023)
78 78  )))
79 79  |(((
80 80  cfeld-gotthard02
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92 92  )))
93 93  )))|(((
94 94  bchip_mpc1922Receiver.config_cfeld-gotthard02
101 +)))|(% colspan="1" %)(((
102 +FLASH.FEL/GOTTHARD/FL2/
95 95  )))
96 96  |(((
97 97  hasdslabgh
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108 108  )))
109 109  )))|(((
110 110  bchip_mpc1922Receiver.config
119 +)))|(% colspan="1" %)(((
120 +FLASH.FEL/GOTTHARD2/FL2/
111 111  )))
112 112  |(((
113 113  cfeld-gotthard01
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116 116  )))|(((
117 117  ?
118 118  )))|(% colspan="1" %)(((
119 -\\
129 +
120 120  )))|(((
121 121  bchip_mpc1922Receiver_petra.config
132 +)))|(% colspan="1" %)(((
133 +
122 122  )))
123 123  
124 -\\
125 125  
137 +
126 126  To change a module the respective config file has to be selected. However changing it will crash the server, thus, it is not possible to change on the fly. Connact Sören if there is the need to exchange a module. However, the differences in the configs are only the hostname. (**To be tested: On the fly might work, if one edits the config-file itself after switching of the server instead of selecting another config file in the GUI. But how to transport this information to the GUI? → Display the first line of the config file!**) The config files are located at the **hasfl2det01: /export/doocs/server/gotthard_server/cfgs/**
127 127  
128 -\\
129 129  
130 130  == GOTTHARD Server ==
131 131  
132 -The server for GOTTHARD (FLASH2) runs on **hasfl2det01**. Its watchdog and control (svr.GOTTHARD) can be found under** FLASH.SYSTEMS - HASFL2DET01.**
143 +The server for GOTTHARD (FLASH2) runs on **hasfl2det01**. Its watchdog and control (svr.GOTTHARD) can be found under** FLASH.SYSTEMS - HASFL2DET01.**
133 133  
134 -\\
135 135  
136 136  == Main Parameters and limits ==
137 137  
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155 155  )))|(((
156 156  ~~2/3 of period time
157 157  )))|(% colspan="1" %)(((
158 -\\
168 +
159 159  )))
160 160  |(((
161 161  Min. period time
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162 162  )))|(((
163 163  ca. 930 ns
164 164  )))|(% colspan="1" %)(((
165 -\\
175 +
166 166  )))
167 167  |(((
168 168  Max repetition frequ.
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172 172  833 kHz (software limited)
173 173  )))
174 174  
175 -\\
176 176  
186 +
177 177  == Soft reset a GOTTHARD Module ==
178 178  
179 -(% style="list-style-type: square;" %)
189 +(% style="list-style-type:square" %)
180 180  * Open console on Linux PC (connected to DESY net)
181 181  * write "telnet cfeld-gotthard02" (or the respective Host name or IP of the module)
182 -(% style="list-style-type: square;" %)
192 +(% style="list-style-type:square" %)
183 183  ** you should be connected to the GOTTHARD onboard system → </root:
184 184  * type: "reboot"
185 -(% style="list-style-type: square;" %)
195 +(% style="list-style-type:square" %)
186 186  ** the module reboots (wait ~~1-2 min), the telnat connection will be cut due to reboot.
187 187  
188 -\\
189 189  
199 +
190 190  == Triggering the Gotthard with a burst trigger ==
191 191  
192 192  it is also possible to trigger the Gotthard not only with 10 Hz but with a burst trigger
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211 211  
212 212  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.
213 213  
214 -\\
215 215  
216 216  by:
217 217  
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225 225  
226 226  Switzerland
227 227  
228 -\\
229 229  
230 -\\
238 +== Using the Spectralyzer together with Gotthard ==
239 +
240 +one needs spectralyzer 0.2.4 or newer
241 +
242 +
243 +start spectralyzer on one of our consoles ( works for fl24 and fl26user )  (for installing new version or for other users .. ask Christopher Behrens... )
244 +
245 +(% class="code" %)
246 +(((
247 +fl26user@hasfcons1:~~$ mamba activate spectralyzer
248 +(spectralyzer) fl26user@hasfcons1:~~$ spectralyzer
249 +)))
250 +
251 +
252 +[[image:url:https://ttfinfo.desy.de/Flash2_FL26elog/data/2023/06/2023-02-10T16:03:53-00.jpg||height="250"]]
253 +
254 +[[image:attach:image2023-9-15_11-16-3.png||height="400"]]
255 +
256 +
257 +
258 +
259 +
20230922_161707_resized.jpg
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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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