Defense Victor Ionut Stoica, Faculty of Mathematics and Natural Sciences, RUG
The aim of the project reported in this thesis was to develop Digital Pulse-Shape Analysis (DPSA) algorithms and controls systems for the Nuclear STructure Astrophysics and Reactions (NuSTAR) experiments at the upcoming Facility for Antiproton and Ion Research (FAIR). Some of these experiments will encompass a tremendous number of electronics channels (> 105), requiring smart online solutions for data processing. We have developed, implemented and tested DPSA algorithms, on front-end electronics using Field-Programmable Gate Arrays (FPGA), as independent modules dealing with digitized data in a real-time environment. The pile-up compensation algorithm does not identify and reject the events in pile-up as common methods do, but it identifies and corrects the affected amplitudes making it possible to also use the events affected by pile-up in the analysis. Due to the stringent and broad requirements of the experiments currently being set up by the NuSTAR collaboration, not only controls are needed, but flexible and distributed controls are required. In this work, a prototype framework for the self-adjusting control-loop approach was created and proven functional. The DPSA algorithms and the control loop are further tested with radioactive sources and in-beam which show that the digital electronics performs well in beam conditions. We have shown that our approach on controls and DPSA algorithms is a viable solution for the upcoming NuSTAR experiments and that it opens the way for a robust, modular and scalable data processing/DAQ for NuSTAR.
Laatst gewijzigd: | 04 juli 2014 21:29 |
Meer nieuws
-
09 april 2024
Kirsten van den Bosch: ‘Studenten verbinden met de praktijk is echt in elke opleiding haalbaar’
Dr. Kirsten van den Bosch en haar team wonnen de Best Practice Award 2024 met hun initiatief om studenten te verbinden met organisaties om echte problemen op te lossen binnen Academic Learning Communities.
-
03 april 2024
Onderzoek: veel stress bij Groningers vanwege de gaswinningsproblematiek, ook onder ouderen
De gaswinningsproblematiek heeft nog altijd veel effect op mensen in Groningen. Uit vragenlijstonderzoek blijkt dat mensen die meerdere keren schade aan hun woning hadden, een steeds slechtere gezondheid hebben. Daarnaast laten interviews met...
-
05 maart 2024
'Ook grijze muizen kunnen creatief zijn'
Organisatiepsycholoog Eric Rietzschel onderzoekt creativiteit op de werkvloer. Volgens hem helpt creativiteit ons om verder te komen, maar is er ook een negatieve kant.