Changes for page MTCA ADCs

Last modified by sndueste on 2024/07/08 09:50
From version 24.1
edited by sndueste
on 2023/03/15 11:12
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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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 ==
... ... @@ -12,14 +12,10 @@
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 =====
... ... @@ -101,15 +101,8 @@
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:
... ... @@ -125,8 +125,7 @@
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 that can be borrowed  ([[link to internal page>>doc:FLASH.Bias T]])[[image:url:https://confluence.desy.de/download/attachments/177857419/20210414_161820.jpg?version=5&modificationDate=1618412745169&api=v2||thumbnail="true" alt="20210414_161820.jpg" height="150"]]
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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134 134  
135 135  There is one in each of the MTCAs in the hall: MTCA-EXP1 at PG/BL1, the other at BL2 and BL3.
136 136  
137 -They are 16 bit, 10 channel, 125 MS/s ADCs.  Here is a link to the [[Struck website>>url:https://www.struck.de/sis8900.html||shape="rect"]]
132 +They are 16 bit, 10 channel, 125 MS/s ADCs.
138 138  
139 139  \\
140 140  
136 +* [[User Manual SIS8300-L2 ADC ACM>>attach:sis8300l2-m-x009-1-v101.pdf]]
137 +* [[User Manual SIS8900 RTM>>attach:sis8900-m-1-1-v104.pdf]]
138 +
141 141  50 Ohm input impedance, -1 V,...,+1 V default input range, analog signals can be routed to AC and DC input stage. The coupling is DC via op-amp (switching to AC transformer involves resoldering of SMD solder bridges).
142 142  
143 143  Here is a trace of the first signal, a 1 MHz trigger connected from the x2timer board in the same MTCA:
144 144  
145 -[[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]]
146 146  
147 147  \\
148 148  
149 149  == Pulse energy server: Using the Struck SIS8300-L2D to detect only integrated values of pulses ==
150 150  
151 -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:
152 152  
153 -Things to set:
154 -
155 -* 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
156 156  * 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
157 157  * 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.
158 158  
159 -\\
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]]
160 160  
161 -
162 -
163 163  \\
164 -
165 -[[image:attach:pulse_energy_server.jpg||height="400"]] [[image:attach:image2019-11-18_17-9-7.png||height="400"]]
166 -
167 -\\
168 -
169 - jddd  server panel  Definition of the parameters
170 -
171 -\\
172 -
173 -\\
174 -
175 -\\
176 -
177 -== Detailed expert stuff ==
178 -
179 -* [[ a collection of usefull things related to the OPIS ADCs>>doc:FLASH.OPIS ADC related things]]
180 -* a list of [[doc:FLASH.our MTCA ADC cards]] (only internal link)
181 -
182 -\\
183 -
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185 -
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187 -
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189 -
190 -\\