9 research outputs found
Scalable data concentrator with baseline interconnection network for triggerless data acquisition systems
Triggerless Data Acquisition Systems (DAQs) require transmitting the data
stream from multiple links to the processing node. The short input data words
must be concentrated and packed into the longer bit vectors the output
interface (e.g. PCI Express) uses. In that process, the unneeded data must be
eliminated, and a dense stream of useful DAQ data must be created.
Additionally, the time order of the data should be preserved. This paper
presents a new solution using the Baseline Network with Reversed Outputs
(BNRO)for high-speed data routing. A thorough analysis of the network operation
enabled increased scalability compared to the previously published concentrator
based on 8x8 network. The presented solution may be scaled by adding additional
layers to the BNRO network while minimizing resource consumption. Simulations
were done for 4 and 5 layers (16 and 32 inputs). The FPGA synthesis has been
performed for 16 inputs. The pipeline registers may be added in each network
independently, shortening the critical path and increasing the maximum
acceptable clock frequency
SMX and front-end board tester for CBM readout chain
The STS-MUCH-XYTER (SMX) chip is a front-end ASIC dedicated to the readout of
Silicon Tracking System (STS) and Muon Chamber (MUCH) detectors in the
Compressed Baryonic Matter (CBM) experiment. The production of the ASIC and the
front-end boards based on it is just being started and requires thorough
testing to assure quality. The paper describes the SMX tester based on a
standard commercial Artix-7 FPGA module with an additional simple baseboard. In
the standalone configuration, the tester is controlled via IPbus and enables
full functional testing of connected SMX, front-end board (FEB), or a full
detector module. The software written in Python may easily be integrated with
higher-level testing software
Design and development of soft x-ray diagnostics based on GEM detectors at IPPLM
The search for new technologies in the field of plasma diagnostics entails the increasing demands on the radiative stability of the used materials due to development and usage of fusion facilities, where the study of processes occurring during the interaction of radiation with matter has become particularly important. Currently, a new X-ray imaging detection technology is required for tokamaks such as ITER. X-ray detectors that are being used in existing equipment may rapidly degrade due to large neutron fluxes characteristic for the tokamak environment. Despite the relatively wide use of semiconductor detectors to record SXR radiation (generally ionizing radiation), gas detectors are promising candidates that are suited much better for use in future fusion reactors given their resistance to neutron radiation. The most promising representative of the new gas detector class is the so called Gas Electron Multiplier (GEM), which is characterized by high amplification factor of the primary charge that is originated from photon absorption. Its main advantages are the compactness of the detector, good temporal and spatial resolutions, the ability to discriminate against photon energy and better neutron resistance compared to existing systems. All this makes such a detection system a potentially better candidate for soft X-ray measurements in the ITER and DEMO reactors. In this work, a new type of detection system based on GEM technology was proposed for soft X-ray measurements in the ITER reactor-oriented research, which is being developed at IPPLM
From the physical model to the electronic system - OMTF Trigger for CMS
The paper presents the development of the Overlap Muon Track Finder (OMTF) trigger for the CMS experiment at CERN. The transition from the data produced by the physical model to the algorithm suitable for practical implementation is shown. The paper also concentrates on the problems related to the necessity of continuous adaptation of the algorithm to the changing operating conditions of the detecto