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Changes for page Gotthard related stuff

Last modified by sndueste on 2025-08-22 10:41
From version 12.1
edited by sndueste
on 2023-07-13 16:42
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
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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7 7  * [[attach:READ_ME_GOTTHARD_detector.pdf]]: READ_ME_GOTTHARD_detector.pdf (Server information is outdated, see below)
11 +* some investigation related to read out noise for different exposure times [[attach:GOTTHARD noise evaluation and exposure time dependence (002).pdf]]
8 8  
9 -\\
10 10  
11 -Ethernet connections:
12 12  
13 -(% 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
14 14  * gbit port  <~-~-->  Server PC (hasfl2det01 at FLASH2, no server currently at FLASH1)
15 15  * base-T     <~-~-->  Office net
16 16  
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18 18  
19 19  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"
20 20  
21 -\\
22 22  
23 23  * Main Gotthard panel for users :
24 24  
25 25  [[image:attach:Clipboard05.gif||height="400"]]
26 -\\
32 +
27 27  
28 -\\
29 29  
30 30  * Exp2 DAQ RC gui for recording Gotthard data. EXPERIMENT_GOTTHARD has to be included
31 31  
32 32  [[image:attach:Clipboard01.gif||height="400"]]
33 33  
34 -\\
35 35  
40 +
36 36  == Operation hints (June 2023): ==
37 37  
38 -(% style="list-style-type: square;" %)
43 +(% style="list-style-type:square" %)
39 39  * **Where is the GOTTHARD GUI:** FLASH2 - Panel: Infrastructure tab → Miscellaneous tab → FLASH2 GOTTHARD ctrl button
40 40  * **Never change a running system:** Do not change parameters while the Detector is running/taking data, The detector will crash.
41 41  * Furthermore the module will crash if recieving to much light (e.g. illuminating with flash light during data dating.
42 42  * **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)
43 43  
44 -(% style="list-style-type: square;" %)
49 +(% style="list-style-type:square" %)
45 45  * **Robooting the GOTTHARD** (if it has crashed): 
46 -(% style="list-style-type: square;" %)
51 +(% style="list-style-type:square" %)
47 47  ** 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
48 48  ** hard reset: power down the GOTTHARD, wait some seconds, Repower the module, wait for reconnection to server/GUI
49 49  * **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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52 52  
53 53  Using burst mode (standard operation as of June 2023)
54 54  
55 -(% style="list-style-type: square;" %)
60 +(% style="list-style-type:square" %)
56 56  * 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
57 -* Exposure range is **100ns <  Exposure < ~~1/3 * Frame periode**
58 -* The periode is:** 9968ns for 100kHz, 4984 for 200kHz, 1993 for 500kHz**
59 -* The number of** frames must be lower than 125, for stable operation 120**
62 +* Exposure range is 2**00ns <  Exposure < ~~1/3 * Frame periode**
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**
60 60  * Number of Shots: Number of trigger events before self stopping, select large number for permanent operation
61 61  
62 62  == Modules and their exchange ==
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63 63  
64 64  Two (Three) modules available (physically at FLASH):
65 65  
66 -(% class="wrapped relative-table" style="width: 64.2451%;" %)
71 +(% class="relative-table wrapped" style="width:64.2451%" %)
67 67  |=(((
68 68  hostname
69 69  )))|=(((
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74 74  Sensor image
75 75  )))|=(((
76 76  config file
82 +)))|=(% colspan="1" %)(((
83 +DOOCS address (status 2023)
77 77  )))
78 78  |(((
79 79  cfeld-gotthard02
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91 91  )))
92 92  )))|(((
93 93  bchip_mpc1922Receiver.config_cfeld-gotthard02
101 +)))|(% colspan="1" %)(((
102 +FLASH.FEL/GOTTHARD/FL2/
94 94  )))
95 95  |(((
96 96  hasdslabgh
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107 107  )))
108 108  )))|(((
109 109  bchip_mpc1922Receiver.config
119 +)))|(% colspan="1" %)(((
120 +FLASH.FEL/GOTTHARD2/FL2/
110 110  )))
111 111  |(((
112 112  cfeld-gotthard01
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115 115  )))|(((
116 116  ?
117 117  )))|(% colspan="1" %)(((
118 -\\
129 +
119 119  )))|(((
120 120  bchip_mpc1922Receiver_petra.config
132 +)))|(% colspan="1" %)(((
133 +
121 121  )))
122 122  
123 -\\
124 124  
137 +
125 125  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/**
126 126  
127 -\\
128 128  
129 129  == GOTTHARD Server ==
130 130  
131 -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.**
132 132  
133 -\\
134 134  
135 135  == Main Parameters and limits ==
136 136  
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154 154  )))|(((
155 155  ~~2/3 of period time
156 156  )))|(% colspan="1" %)(((
157 -\\
168 +
158 158  )))
159 159  |(((
160 160  Min. period time
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161 161  )))|(((
162 162  ca. 930 ns
163 163  )))|(% colspan="1" %)(((
164 -\\
175 +
165 165  )))
166 166  |(((
167 167  Max repetition frequ.
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171 171  833 kHz (software limited)
172 172  )))
173 173  
174 -\\
175 175  
186 +
176 176  == Soft reset a GOTTHARD Module ==
177 177  
178 -(% style="list-style-type: square;" %)
189 +(% style="list-style-type:square" %)
179 179  * Open console on Linux PC (connected to DESY net)
180 180  * write "telnet cfeld-gotthard02" (or the respective Host name or IP of the module)
181 -(% style="list-style-type: square;" %)
192 +(% style="list-style-type:square" %)
182 182  ** you should be connected to the GOTTHARD onboard system → </root:
183 183  * type: "reboot"
184 -(% style="list-style-type: square;" %)
195 +(% style="list-style-type:square" %)
185 185  ** the module reboots (wait ~~1-2 min), the telnat connection will be cut due to reboot.
186 186  
187 -\\
188 188  
199 +
189 189  == Triggering the Gotthard with a burst trigger ==
190 190  
191 191  it is also possible to trigger the Gotthard not only with 10 Hz but with a burst trigger
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210 210  
211 211  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.
212 212  
213 -\\
214 214  
215 215  by:
216 216  
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224 224  
225 225  Switzerland
226 226  
227 -\\
228 228  
229 -\\
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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