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Changes for page Gotthard related stuff

Last modified by sndueste on 2025-08-22 10:41
From version 11.1
edited by palutke
on 2023-06-24 16:24
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

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1 +FLASHUSER.Misc.jddd-linked help pages.WebHome
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1 -XWiki.palutke
1 +XWiki.sndueste
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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7 7  * [[attach:READ_ME_GOTTHARD_detector.pdf]]: READ_ME_GOTTHARD_detector.pdf (Server information is outdated, see below)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  
... ... @@ -18,32 +18,30 @@
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
106 +
107 +"gotthard dgt01"
97 97  )))|(((
98 98  working
99 99  )))|(((
... ... @@ -105,6 +105,8 @@
105 105  )))
106 106  )))|(((
107 107  bchip_mpc1922Receiver.config
119 +)))|(% colspan="1" %)(((
120 +FLASH.FEL/GOTTHARD2/FL2/
108 108  )))
109 109  |(((
110 110  cfeld-gotthard01
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113 113  )))|(((
114 114  ?
115 115  )))|(% colspan="1" %)(((
116 -\\
129 +
117 117  )))|(((
118 118  bchip_mpc1922Receiver_petra.config
132 +)))|(% colspan="1" %)(((
133 +
119 119  )))
120 120  
121 -\\
122 122  
137 +
123 123  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/**
124 124  
125 -\\
126 126  
127 127  == GOTTHARD Server ==
128 128  
129 -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.**
130 130  
131 -\\
132 132  
133 133  == Main Parameters and limits ==
134 134  
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152 152  )))|(((
153 153  ~~2/3 of period time
154 154  )))|(% colspan="1" %)(((
155 -\\
168 +
156 156  )))
157 157  |(((
158 158  Min. period time
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159 159  )))|(((
160 160  ca. 930 ns
161 161  )))|(% colspan="1" %)(((
162 -\\
175 +
163 163  )))
164 164  |(((
165 165  Max repetition frequ.
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169 169  833 kHz (software limited)
170 170  )))
171 171  
172 -\\
173 173  
186 +
174 174  == Soft reset a GOTTHARD Module ==
175 175  
176 -(% style="list-style-type: square;" %)
189 +(% style="list-style-type:square" %)
177 177  * Open console on Linux PC (connected to DESY net)
178 178  * write "telnet cfeld-gotthard02" (or the respective Host name or IP of the module)
179 -(% style="list-style-type: square;" %)
192 +(% style="list-style-type:square" %)
180 180  ** you should be connected to the GOTTHARD onboard system → </root:
181 181  * type: "reboot"
182 -(% style="list-style-type: square;" %)
195 +(% style="list-style-type:square" %)
183 183  ** the module reboots (wait ~~1-2 min), the telnat connection will be cut due to reboot.
184 184  
185 -\\
186 186  
199 +
187 187  == Triggering the Gotthard with a burst trigger ==
188 188  
189 189  it is also possible to trigger the Gotthard not only with 10 Hz but with a burst trigger
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208 208  
209 209  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.
210 210  
211 -\\
212 212  
213 213  by:
214 214  
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222 222  
223 223  Switzerland
224 224  
225 -\\
226 226  
227 -\\
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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