Last modified by chatzies on 2025-11-27 11:35

From version 1.1
edited by ahenkel
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edited by ahenkel
on 2021-12-12 23:53
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Title
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1 -Serial Crystallography: CFEL TapeDrive
1 +14. Serial Crystallography: CFEL TapeDrive
Content
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1 +{{layout}}
2 +{{layout-section ac:type="single"}}
3 +{{layout-cell}}
4 +[[image:attach:TapeDrive_beschriftet-tile.jpg||height="250"]]
5 +
6 +\\
7 +
8 +{{toc minLevel="2"/}}
9 +
10 +\\
11 +
12 +== {{id name="14.SerialCrystallography:CFELTapeDrive-14.1Samplecharacteristicsandpreparation"/}}**14.1 Sample characteristics and preparation** ==
13 +
14 +suspension of microcrystals, **at least** 200 µL with 20% crystal density(more is always better), size range: 2-30 µm, **tip:** bring some mother liquor for washing, filtering, diluting etc.
15 +
16 +Preparation:
17 +
18 +* filter through 30 µm cell filter (green) into Eppendorf or Falcon (original!) tube
19 +
20 +[[image:attach:20211201_095534.jpg||height="250"]]
21 +
22 +\\
23 +
24 +== {{id name="14.SerialCrystallography:CFELTapeDrive-14.2ConnectingsampletoElveFlow,sampleexchange"/}}**14.2 Connecting sample to ElveFlow, sample exchange
25 +** ==
26 +
27 +After filtration, screw the ElveFlow connector to your Eppendorf or Falcon tube. Make sure that the yellow-ish line goes to the bottom of your tube. You can adjust the length by unscrewing the blue fitting on top and pushing/pulling the yellow-ish line. **Don't forget to tigthen the blue fitting afterwards!**
28 +
29 +Be aware to which channel and nozzle line your sample is connected.
30 +
31 + Red → Channel 1, crystal line (nozzle capillary without marks/with red marks)
32 +
33 + Green → Channel 2, substrate line (nozzle capillary is marked in black)
34 +
35 +[[image:attach:20211201_095033.jpg||thumbnail="true" height="250"]]
36 +
37 +After finishing data collection, flush all lines by connecting an Eppi or syringe filled with ddH,,2,,O.
38 +
39 +[[image:attach:20211201_095232.jpg||height="250"]][[image:attach:20211201_095205.jpg||height="250"]]
40 +
41 +\\
42 +
43 +== {{id name="14.SerialCrystallography:CFELTapeDrive-14.3TapeDriveoperation"/}}**14.3 TapeDrive operation
44 +** ==
45 +
46 +The TapeDrive is controlled through kamzik. To open kamzik, start the server. A terminal will open and shortly after a small window.
47 +Now start the client. Same thing, a terminal will open, shortly after a small window.
48 +
49 +Click 'Devices' in the **client session** to open the control window.
50 +[[image:attach:screen.PNG||height="250"]][[image:attach:server client.PNG||height="250"]]
51 +
52 +==== {{id name="14.SerialCrystallography:CFELTapeDrive-Tape"/}}**Tape** ====
53 +
54 +* Click on the 'main tape' icon
55 +* Change the velocity by typing anything from **0.3-3.0 mm/s**
56 +* Common velocity is 1.0-1.5 mm/s
57 +* kamzik displays the used tape in m and %. At 98% the tape will automatically stop since the rolls need to be exchanged at this point.
58 +\\
59 +* [[image:attach:kamzik_tape.PNG||height="400"]]
60 +
61 +==== {{id name="14.SerialCrystallography:CFELTapeDrive-Samplenozzle"/}}**Sample nozzle** ====
62 +
63 +* Click an the 'nozzle' icon.
64 +* (((
65 +The nozzle position can be adjusted in xyz by clicking on the arrows up and down. (Double arrow = 10 steps). Step size can be varied, 1mm steps are rather big and should be used carefully.
66 +The absolute position is **not calibrated** and therefore changes after each restart of kamzik.
67 +
68 +
69 +(% style="color: rgb(255,0,0);" %)**!!! **(% style="color: rgb(255, 0, 0); color: rgb(0, 0, 0)" %)**During data collection make sure in which direction you are moving, do not move nozzle into beam**(% style="color: rgb(255,0,0);" %)** !!!**(%%)
70 +\\Adjust the nozzle position by eye until it nearly touches the tape and roughly meets the X-ray interaction point. Then, move to the control hutch to use the on-axis microscope for fine adjustment. Move the nozzle tip to the beam position (red X) and write down the absolut nozzle position. From there move the nozzle in +x to your desired distance.Different distances combined with the tape speed result in several delay times for time-resolved experiments.
71 +
72 +(% class="wrapped" %)
73 +|=(((
74 +\\
75 +)))|=(((
76 +direction
77 +)))|=(((
78 +recommended step size
79 +for visual adjustment
80 +)))|=(% colspan="1" %)(((
81 +recommended step size
82 +during data collection
83 +)))
84 +|(((
85 ++x
86 +)))|(((
87 +away from X-ray interaction point
88 +)))|(((
89 +1.0 - 0.5 mm
90 +)))|(% colspan="1" %)(((
91 +0.1 - 0.2 mm
92 +)))
93 +|(((
94 ++y
95 +)))|(((
96 +up
97 +)))|(((
98 +1.0 - 0.5 mm
99 +)))|(% colspan="1" %)(((
100 +0.1 - 0.2 mm
101 +)))
102 +|(((
103 ++z
104 +)))|(((
105 +towards detector tower, away from tape
106 +)))|(((
107 +0.5 - 0.2 mm
108 +)))|(% colspan="1" %)(((
109 +0.1 - 0.2 mm
110 +be careful with -z, tape could be pushed out of focus
111 +)))
112 +
113 +**
114 +\\**
115 +)))
116 +* [[image:attach:kamzik_nozzle.PNG||height="400"]]
117 +
118 +==== {{id name="14.SerialCrystallography:CFELTapeDrive-Temperaturecontrol/Chiller"/}}**Temperature control/Chiller** ====
119 +
120 +* The chiller circulates fluid through the gas nozzle.
121 +
122 +\\
123 +
124 +==== {{id name="14.SerialCrystallography:CFELTapeDrive-Gasnozzle"/}}**Gas nozzle** ====
125 +
126 +\\
127 +
128 +==== {{id name="14.SerialCrystallography:CFELTapeDrive-IRcamera"/}}**IR camera** ====
129 +
130 +\\
131 +
132 +Once the hutch is interlocked, set remote control to the TapeDrive laptop by opening a terminal and executing the following command:
133 +
134 + xfreerdp +clipboard /size:1920x1080 /u:Cfelusr /v:cfeld-pcx22611
135 + password: //written on control laptop (changes every 6 months)
136 +//
137 +
138 +\\
139 +
140 +\\
141 +
142 +== {{id name="14.SerialCrystallography:CFELTapeDrive-14.5Taperollexchange"/}}**14.5 Tape roll exchange** ==
143 +
144 +The tape stops automatically at 98% used length, if you need to change the rolls for orther reasons, stop the tape (velocity = 0.0 mm/s).
145 +
146 +* Remove the (almost) empty feeder roll by pulling it upwards.
147 +* Cut the tape with some cm overlap to glue to the new roll. **Do not discard empty roll!**
148 +* Get a new tape roll (bottom left on the cart). **Polypropylen 15 µm**
149 +* Cut the first cm of the new tape roll, directly behind the black sticky part.
150 +* Place new roll on roll holder and use sticky tape to attach the end of the old tape to the beginning of the new roll.
151 +* Open magnetic tape stabilizer on the **left side**. //!!!BEAMSTOP!!!//
152 +* Start the tape (3mm/s). Once the connetion side has arrived at the collector roll, stop the tape (0mm/s).
153 +* Again, cut the tape directly behind the connection side. Replace the the old roll with the **empty **one. Old roll can be discarded.
154 +* Attach new tape to the empty roll by using some sticky tape.
155 +* Close tape stabilizer.
156 +* Reset tape counter in kamzik by clicking "<Call>" in "Main-Tape".
157 +
158 +**[[image:attach:20211201_094101.jpg||height="250"]][[image:attach:20211201_094111.jpg||height="250"]][[image:attach:tape reset.PNG||height="250"]]
159 +**
160 +
161 +\\
162 +
163 +\\
164 +
165 +=== {{id name="14.SerialCrystallography:CFELTapeDrive-"/}}**
166 +** ===
167 +{{/layout-cell}}
168 +{{/layout-section}}
169 +
170 +{{layout-section ac:type="single"}}
171 +{{layout-cell}}
172 +== {{id name="14.SerialCrystallography:CFELTapeDrive-14.7Chopper"/}}**14.7 Chopper** ==
173 +
174 +start chopper gui from terminal:
175 +
176 +(% class="code" %)
177 +(((
178 + cd /gpfs/local/shared/ChopperControl
179 +)))
180 +
181 +(% class="code" %)
182 +(((
183 + python chopperControl.py
184 +)))
185 +{{/layout-cell}}
186 +{{/layout-section}}
187 +
188 +{{layout-section ac:type="two_equal"}}
189 +{{layout-cell}}
190 + [[image:attach:20211212_233140.jpg||height="250"]]
191 +{{/layout-cell}}
192 +
193 +{{layout-cell}}
194 +**Chopper → no Chopper**
195 +
196 +* decrease frequency by max. 10 Hz steps\\
197 +** click arrow down 10x, "Set", arrow down 10x, "Set", ....
198 +* at frequency = 10 Hz, click "Stop"
199 +* set "Hole" to <none> (% style="color: rgb(255,0,0);" %)//Takes some minutes//
200 +
201 +(% style="color: rgb(0,0,0);" %)**no Chopper → Chopper**
202 +
203 +* (% style="color: rgb(0,0,0);" %)set "Hole" to <Inner hole (largest)> (% style="color: rgb(255,0,0);" %)//Takes some minutes//
204 +* (% style="color: rgb(0,0,0);" %)increase frequency by max. 10 Hz steps
205 +** (% style="color: rgb(0,0,0);" %)click arrow up 10x, "Set", arrow up 10x, "Set", .....
206 +* (% style="color: rgb(0,0,0);" %)//usually 133 Hz, results in exposure time of 3.7 ms//
207 +{{/layout-cell}}
208 +{{/layout-section}}
209 +
210 +{{layout-section ac:type="single"}}
211 +{{layout-cell}}
212 +== {{id name="14.SerialCrystallography:CFELTapeDrive-14.8Datacollection"/}}**14.8 Data collection** ==
213 +
214 +Once the hutch is interlocked, set remote control to the TapeDrive laptop by opening a terminal and executing the following command:
215 +
216 +(% class="code" %)
217 +(((
218 + xfreerdp +clipboard /size:1920x1080 /u:Cfelusr /v:cfeld-pcx22611
219 + password: written on control laptop (changes every 6 months)
220 +)))
221 +
222 + //>>usually the terminal is open, just repeat previous command with arrow up, enter and type in the password//
223 +
224 +\\
225 +
226 +Click "Start" icon in kamzik.
227 +
228 +[[image:attach:kamzik_run-tile.jpg||height="400"]]
229 +
230 +----
231 +{{/layout-cell}}
232 +{{/layout-section}}
233 +
234 +{{layout-section ac:type="two_equal"}}
235 +{{layout-cell}}
236 +**Check list:**
237 +
238 +(% style="color: rgb(255,0,0);" %)//always after entering the hutch!//
239 +
240 +* Open BS1  (//CrystalControl)//
241 +* Put collimator in (//CrystalControl)//
242 +* Check beamstop position = 27 000 (//Atk panel p11/motor/eh.3.09)//
243 +* Open fast shutter (//CrystalControl)//
244 +* Check diode voltage ~~ 0.0 (//kamzik Run/Diode voltage)//
245 +* Close fast shutter (//CrystalControl)//
246 +
247 +\\
248 +
249 +**Set run parameters and go 🏃💥**
250 +
251 +1. Set your desired No. of frames
252 +1. Match exposure time with chopper setting
253 +1. Check trigger setting and match to chopper setting
254 +1. Set detector distance to 200.0 mm, confirm with //enter// and click "<Call>" button next to it.
255 +1. To start the run, click "<Call>" next to //exposure time//
256 +
257 +\\
258 +
259 +(% style="color: rgb(153,51,102);" %)**//Current bug~://**
260 +
261 +(% style="color: rgb(0,0,0);" %)You need to "Stop" run in kamzik manually after all images have been acquired. This moves the shield up and closes the fast shutter. Afterwards you can start a new run by clicking "<Call>".
262 +
263 +
264 +(% style="color: rgb(0,0,0);" %)Check progress in terminal with:
265 +
266 +(% class="code" %)
267 +(((
268 + cd /gpfs/current/raw/scan_frames
269 + watch "ls -lrt <run number>/ | tail"
270 +\\\\\\\\
271 +)))
272 +{{/layout-cell}}
273 +
274 +{{layout-cell}}
275 +(% class="wrapped relative-table" style="width: 100.0%;" %)
276 +|=(((
277 +Parameter
278 +)))|=(((
279 +explanation
280 +)))|=(% colspan="1" %)(((
281 +value
282 +)))
283 +|(((
284 +Images number
285 +)))|(((
286 +Set number of frames you want to collect
287 +)))|(% colspan="1" %)(((
288 +usually 100k - 200k, but adjust according to hitrate
289 +
290 +orientation: 10 % hitrate needs at least 100k images
291 +)))
292 +|(((
293 +exposure
294 +)))|(((
295 +exposure time of Eiger
296 +
297 +\\
298 +)))|(% colspan="1" %)(((
299 +chopper at 133 Hz → 3.7 ms
300 +
301 +chopper at 66 Hz   → 7.7 ms
302 +
303 +no chopper            → 7.7 ms
304 +
305 +----
306 +)))
307 +|(((
308 +run id
309 +)))|(((
310 +changes automatically
311 +)))|(% colspan="1" %)(((
312 +\\
313 +)))
314 +|(% colspan="1" %)(((
315 +Detector distance
316 +)))|(% colspan="1" %)(((
317 +current detector postion readout
318 +)))|(% colspan="1" %)(((
319 +\\
320 +)))
321 +|(% colspan="1" %)(((
322 +move_detector (distance)
323 +)))|(% colspan="1" %)(((
324 +Set detector distance
325 +)))|(% colspan="1" %)(((
326 +200.0 mm   (% style="color: rgb(255,0,0);" %)confirm with //enter//, click "<Call>"
327 +)))
328 +|(% colspan="1" %)(((
329 +Diode voltage
330 +)))|(% colspan="1" %)(((
331 +read out of diode
332 +)))|(% colspan="1" %)(((
333 +**~~ 0 !!! higher values indicate missaligned beam stop!!! 
334 +Call local contact
335 +**
336 +)))
337 +{{/layout-cell}}
338 +{{/layout-section}}
339 +
340 +{{layout-section ac:type="single"}}
341 +{{layout-cell}}
342 +----
343 +
344 +== {{id name="14.SerialCrystallography:CFELTapeDrive-14.9Troubleshooting"/}}**14.9 Troubleshooting** ==
345 +
346 +* (((
347 +==== {{id name="14.SerialCrystallography:CFELTapeDrive-Tapestopped"/}}Tape stopped ====
348 +
349 +* Tape roll empty?
350 +* motor connected (icon green)?
351 +)))
352 +
353 +\\
354 +
355 +* (((
356 +==== {{id name="14.SerialCrystallography:CFELTapeDrive-Nozzlemotorsarenotresponding"/}}Nozzle motors are not responding ====
357 +
358 +* displayed in green=connected?
359 +* nozzle holder colliding somewhere?
360 +* motor limits reached? → position displayed in red
361 +)))
362 +
363 +\\
364 +
365 +* (((
366 +==== {{id name="14.SerialCrystallography:CFELTapeDrive-Sampleflowisnotrespondingtohigherpressure"/}}Sample flow is not responding to higher pressure ====
367 +
368 +* channel turned on?
369 +* Sample empty?
370 +* Nozzle or lines clogged? → flush with water, change nozzle
371 +)))
372 +{{/layout-cell}}
373 +{{/layout-section}}
374 +{{/layout}}
Confluence.Code.ConfluencePageClass[0]
Id
... ... @@ -1,1 +1,1 @@
1 -235031814
1 +236824598
Title
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1 -Serial Crystallography: CFEL TapeDrive
1 +14. Serial Crystallography: CFEL TapeDrive
URL
... ... @@ -1,1 +1,1 @@
1 -https://confluence.desy.de/spaces/11/pages/235031814/Serial Crystallography: CFEL TapeDrive
1 +https://confluence.desy.de/spaces/11/pages/236824598/14. Serial Crystallography: CFEL TapeDrive