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projects:maps:mapsadapter:analogsignalmodul:overview [2020/07/03 14:51] carsten [0) Preamble] |
projects:maps:mapsadapter:analogsignalmodul:overview [2020/07/05 11:53] (current) carsten [3.) Internal pictures] |
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===== 0) Preamble ===== | ===== 0) Preamble ===== | ||
- | In existing MAPS system up to 64 transformer (ACT) signals are present, that should be later expandable to 128 channel all. To fetch a short puls signal at the right moment in time a trigger signal for has to be given. Due to different timing domains in principal for each of the 64 ACTs although 64 different triggers have to be applied. Infact and GSI-reality there are below 10 different timing domains in area of UNILAC where ACTs are at home. | + | In existing MAPS system up to 64 transformer (ACT) signals are present |
NI-Carte shares eight common lines for real time triggers on backplane. Each single ADC modul can in principial receive such triggers via 68 pin front end connector. Those are connected with cable to 8 preseted adapeter cards in MAPS-adapter. This adapter cards collect analog signals for 8 ACTs and provide additional one external Lemm 00 port for i. e. feed in a external trigger. That could be used either only from the special connected single ADC or can be passed out to the backplane to be spread around to all other ADCs. | NI-Carte shares eight common lines for real time triggers on backplane. Each single ADC modul can in principial receive such triggers via 68 pin front end connector. Those are connected with cable to 8 preseted adapeter cards in MAPS-adapter. This adapter cards collect analog signals for 8 ACTs and provide additional one external Lemm 00 port for i. e. feed in a external trigger. That could be used either only from the special connected single ADC or can be passed out to the backplane to be spread around to all other ADCs. | ||
At UNILAC beam packages comes with a maximum rate of 50 Hz, which means a time intervall of maximum 20ms per puls. In fact beam puls is shorter from 5-6 ms and in the rest of intervall up to 20ms next beam target is configured. Because acclaration fastly leads to high flight speeds differences in arival times even between the first and the last ACT postion 150 m away is in range of a µs, what nearly can't be seen. Nevertheless oportunity of different triggers is given from hardware even if only one is required! | At UNILAC beam packages comes with a maximum rate of 50 Hz, which means a time intervall of maximum 20ms per puls. In fact beam puls is shorter from 5-6 ms and in the rest of intervall up to 20ms next beam target is configured. Because acclaration fastly leads to high flight speeds differences in arival times even between the first and the last ACT postion 150 m away is in range of a µs, what nearly can't be seen. Nevertheless oportunity of different triggers is given from hardware even if only one is required! | ||
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===== 1.) Signal flow for ADC-gate (Trigger) ===== | ===== 1.) Signal flow for ADC-gate (Trigger) ===== | ||
The following picture illustrates the flow of meassurement gate " | The following picture illustrates the flow of meassurement gate " | ||
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- | + | ===== 2.) Boards ===== | |
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- | ===== 2.) Boards | + | |
This module does only house board [[projects: | This module does only house board [[projects: | ||
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===== 3.) Internal pictures ===== | ===== 3.) Internal pictures ===== | ||
- | ^ ^ ^ ^ | + | Grey comments are possible adptions to MAPS2020! |
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