Triggerless readout architecture for the silicon pixel detector of the PANDA experiment

Mazza, G.; Calvo, D.; Remigis, P. De; Kugathasan, T.; Mignone, M.; Rivetti, A.; Toscano, L.; Wheadon, R.; Zotti, L.

doi:10.1088/1748-0221/8/02/c02017

Cited by 1 publication

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References 6 publications

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“…Important examples are given by all four experiments at the LHC: triggerless readout electronics have already been proposed or designed for all of LHCb [75] and some subdetectors such as the calorimeters at ATLAS [79] and CMS [80]; ALICE is also planned to go triggerless after the next long LHC shutdown [35]. Other examples of new triggerless systems include the CLIC linac at CERN [81], the Mu3e experiment at PSI [82] and the PANDA and CBM experiments at GSI [83,84].…”

Section: Evolution Of Data Acquisition Systemsmentioning

confidence: 99%

Development of a data acquisition architecture with distributed synchronization for a Positron Emission Tomography system with integrated front-end.

Varea¹,

Ramón²

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Positron Emission Tomography (PET) is a non-invasive nuclear medical imaging modality that makes it possible to observe the distribution of metabolic substances within a patient's body after marking them with radioactive isotopes and arranging an annular scanner around him in order to detect their decays. The main applications of this technique are the detection and tracing of tumors in cancer patients and metabolic studies with small animals.The Electronic Design for Nuclear Applications (EDNA) research group within the Instituto de Instrumentación para Imagen Molecular (I3M) has been involved in the study of high performance PET systems and maintains a small experimental setup with two detector modules. This thesis is framed within the necessity of developing a new data acquisition system (DAQ) for the aforementioned setup that corrects the drawbacks of the existing one. The main objective is to define a DAQ architecture that is completely scalable, modular, and guarantees the mobility and the possibility of reusing its components, so that it admits any extension of modification of the setup and it is possible to export it directly to the configurations used by other groups or experiments. At the same time, this architecture should be compatible with the best possible resolutions attainable at the present instead of imposing artificial limits on system performance. In particular, the new DAQ system should outperform the previous one.As a first step, a general study of DAQ architectures is carried out in the context of experimental setups for PET and other high energy physics applications. On one hand, the conclusion is reached that the desired specifications require early digitization of detector signals, exclusively digital communication between modules, and the absence of a centralized trigger. On the other hand, the necessity of a very precise distributed synchronization scheme between modules becomes apparent, with errors in the order of 100 ps, and operating directly over the data links. A study of the existing methods reveals their severe limitations in terms of achievable precision. A theoretical analysis of the situation is carried out with the goal of overcoming them, and a new synchronization algorithm is proposed that is able to reach the desired resolution while getting rid of the restrictions on clock iii alignment that are imposed by virtually all usual schemes. Since the measurement of clock phase difference plays a crucial role in the proposed algorithm, extensions to the existing methods are defined and analyzed that improve them significantly. The proposed scheme for synchronism is validated using commercial evaluation boards.Taking the proposed synchronization method as a starting point, a DAQ architecture for PET is defined that is composed of two types of module (acquisition and concentration) whose replication makes it possible to arrange a hierarchic system of arbitrary size, and circuit boards are designed and commissioned that implement a realization of the architecture for the...

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Section: Evolution Of Data Acquisition Systemsmentioning

confidence: 99%

Development of a data acquisition architecture with distributed synchronization for a Positron Emission Tomography system with integrated front-end.

Varea¹,

Ramón²

View full text Add to dashboard Cite

show abstract

Triggerless readout architecture for the silicon pixel detector of the PANDA experiment

Cited by 1 publication

References 6 publications

Development of a data acquisition architecture with distributed synchronization for a Positron Emission Tomography system with integrated front-end.

Development of a data acquisition architecture with distributed synchronization for a Positron Emission Tomography system with integrated front-end.

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