Changes for page MTCA ADCs

Last modified by sndueste on 2024/07/08 09:50
From version 18.1
edited by sendels
on 2021/02/10 15:08
Change comment: There is no comment for this version
To version 6.1
edited by sndueste
on 2019/10/02 15:26
Change comment: There is no comment for this version

Summary

Details

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Author
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1 -XWiki.sendels
1 +XWiki.sndueste
Content
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1 -Content:
1 += Content: =
2 2  
3 += =
3 3  
5 +{{toc/}}
4 4  
5 -{{toc minLevel="2"/}}
7 += General info =
6 6  
7 -----
9 +\\
8 8  
11 +* [[ADQ412 server description~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://ttfinfo.desy.de/FLASHWiki/Wiki.jsp?page=SPdevicesDMA%20ADQ||shape="rect"]]
12 +* [[more ADC server descriptions~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://ttfinfo.desy.de/DOOCSWiki/Wiki.jsp#section-C_2B_2B+Server+Interface-D_ADCscope?page=C%2B%2B%20Server%20Interface||shape="rect"]]
13 +* [[Description of the DAQ properties related to the ADCs~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://ttfinfo.desy.de/DOOCSWiki/Wiki.jsp#section-C_2B_2B+Server+Interface-DaqfedConfiguration.?page=C%2B%2B%20Server%20Interface||shape="rect"]]
14 +* [[ a collection of usefull things related to the OPIS ADCs>>doc:FLASH.OPIS ADC related things]]
15 +
16 +\\
17 +
9 9  = Our ADC cards =
10 10  
11 11  == GHz ADCs: SP-Devices ADQ412AC ==
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12 12  
13 13  We have ADQ412AC-4G-MTCA digitizer cards for the experiment crates (Exp1, Exp2 and FL2Exp1):
14 14  [[ADQ412_datasheet.pdf>>attach:10-0494_C_ADQ412_datasheet.pdf]] ( [[new version>>attach:10-0494-adq412_datasheet.pdf]], [[sampling rates table>>attach:Clocking_AppNote.pdf]])
15 -The cards are connected via Patch panels to the Experimental endstations and can be operated with a jddd panel:
24 +The cards are connected via Patch panels to the Experimental endstations.
16 16  
17 -[[image:attach:image2019-10-21_15-21-23.png||width="800"]]
18 -
19 19  \\
20 20  
21 -\\
22 -
23 23  * **NOTE: between ADC and Patch panel we have installed an [[EMP protector>>attach:EMP_protector.pdf]] and an additional 1dB attenuator**
24 24  * for the influence of the Patch cable and the EMP protector see also [[this logbook entry~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:http://ttfinfo.desy.de/ExpHallelog/show.jsp?dir=/2016/27/08.07&pos=2016-07-08T17:41:07||shape="rect"]]
25 25  
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48 48  |(((
49 49  Sampling rate
50 50  )))|(((
51 -2 *
56 +2
52 52  )))|(((
53 53  GSPS
54 54  )))
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66 66  |(((
67 67  Sampling rate
68 68  )))|(((
69 -4 *
74 +4
70 70  )))|(((
71 71  GSPS
72 72  )))
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78 78  GHz
79 79  )))
80 80  
81 - ~* note that the sample rate is NOT locked to the FLASH repetition rate ! Thus there is a not integer number of samples between FLASH pulses. The sample rate also differs slightly from ADC card  to ADC card. The rough spacing is **1993.846** samples between 2 pulses at 1 MHz for details ask the local contact.
82 -
83 83  \\
84 84  
85 85  ===== ADC and DOOCS / DAQ =====
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101 101  \\{{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH02/TD{{/code}}
102 102  {{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH03/TD{{/code}}
103 103  
104 -and at FLASH2
105 -
106 -
107 -\\\\\\\\{{code language="none"}}FL24:/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH00/TD/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH01/TD/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH02/TD/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH03/TD{{/code}}
108 -
109 -\\
110 -
111 111  DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00/CH00.TD  or CH00.DAQ.TD{{/code}}
112 -here the {{code language="none"}}CH00.TD{{/code}} is the full ADC trace as it is sampled ( typically several 100.000 samples per pulse train) while the {{code language="none"}}CH00.DAQ.TD{{/code}} trace only has the number of samples which are sent to the DAQ OR if //grouping// is activated the {{code language="none"}}CH00.DAQ.TD{{/code}} contains only the grouped spectra. To read the ADC trace with an online analysis program the {{code language="none"}}CH00.DAQ.TD{{/code}} is preferable to use ...
108 +here the {{code language="none"}}CH00.TD{{/code}} is the full ADC trace as it is sampled ( typically several 100.000 samples per pulse train) while the {{code language="none"}}CH00.DAQ.TD{{/code}} trace only has the number of samples which are sent to the DAQ OR if //grouping// is actvated the {{code language="none"}}CH00.DAQ.TD{{/code}} contins only the grouped spectra. To read the ADC trace with an online analysis program the {{code language="none"}}CH00.DAQ.TD{{/code}} is preferable to use ...
113 113  DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00{{/code}}
114 114  
115 115  in addition there are also additional parameters saved like:
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125 125  * **we can offer [[ Phillips scientific Model 6954>>attach:6954ds.pdf]] amplifiers** to either amplify small signals or to decouple setups which may deliver voltage peaks fro the ADCs.
126 126  * The available ADCs 5x, 10x, 20 x 50x and 100x
127 127  * The ADCs can be borrowed from Markus Braune
128 -* The Amplifiers fit perfectly to the dynamic range of the GHz ADCs - here a  [[ test of the Phillips scientific amplifier>>attach:Model_6954_Amplifier_Report.pdf]]
129 -* There are also [[BiasTs>>attach:ZX85-12G-S+.pdf]] available ([[link to internal page>>doc:FLASH.Bias T]])
124 +* The Amplifiers fot perfectly to the dynamic range of the GHz ADCs - here a  [[ test of the Phillips scientific amplifier>>attach:Model_6954_Amplifier_Report.pdf]]
130 130  
131 131  \\
132 132  
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145 145  
146 146  Here is a trace of the first signal, a 1 MHz trigger connected from the x2timer board in the same MTCA:
147 147  
148 -[[image:attach:adc_mhz.jpg||height="400"]]
143 +[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/adc_mhz.jpg~|~|alt="adc_mhz.jpg" width="550" height="500"~]~]>>attach:adc_mhz.jpg]]
149 149  
150 150  \\
151 151  
152 152  == Pulse energy server: Using the Struck SIS8300-L2D to detect only integrated values of pulses ==
153 153  
154 -FS-LA (Falko Peters) programmed a pulse detection server that automatically detects peaks in the signal and integrates the samples around the peak.
149 +FS-LA (Falko Peters) programmed a pulse detection server that automatically detects peaks in the signel and integrates the samples around the peak. <\br> things to set:
155 155  
156 -Things to set:
157 -
158 -* Min peak height: threshold fro which on some signal is considered to be a peak. The actual peak is then determined as the maximum of the counts after the threshold
151 +* Peak height: from what signal on (incounts) is the signal to be counted as peak
159 159  * pre and post peak integration time: how much ns to be integrated before and after the peak sample that are taken into account for the peak
160 160  * pre and post peak noise time: before and after the samples that are taken for the actual signal these samples are used as background ( they also can be used to define the "deadtime" of the detector before it searches for new peaks.
161 161  
162 -\\
155 +[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/pulse_energy_server.jpg~|~|alt="pulse_energy_server.jpg" width="400" height="300"~]~]>>attach:pulse_energy_server.jpg]]
163 163  
164 - [[image:attach:image2019-11-18_17-9-7.png||height="400"]]
165 -
166 -[[image:attach:pulse_energy_server.jpg||height="400"]]
167 -
168 168  \\
169 -
170 - jddd  server panel  Definition of the parameters
171 -
172 -\\
173 -
174 -\\
175 -
176 -\\
177 -
178 -= Detailed stuff =
179 -
180 -* [[ADQ412 server description~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://ttfinfo.desy.de/FLASHWiki/Wiki.jsp?page=SPdevicesDMA%20ADQ||shape="rect"]]
181 -* [[ a collection of usefull things related to the OPIS ADCs>>doc:FLASH.OPIS ADC related things]]
182 -
183 -\\
184 -
185 -\\
186 -
187 -\\
188 -
189 -\\