Search

A new version of the SIMCON system is presented in this paper. The SIMCON stands for the microwave, resonant, superconductive accelerator cavity simulator and controller (embracing the hardware and software layers). The current version of the SIMCON is 3.1. which is a considerable step forward from the previous 8-channel version 3.0. which was released at the beginning of 2005 and was made operable in April. Many important upgrades were implemented in SIMCON 3.1. It is a stand-alone VME board (whereas SIMCON 3.0 was modular) based on the Virtex II Pro 30 chip with two embedded Power PCs and DSP blocks. It has Ethernet and multiple gigabit optical I/Os. The Simcon 3.1 board provides 10 ADC channels. The architecture idea and block diagrams of the PCB for SIMCON 3.1. are presented. Some of the applied novel technical solutions, Protel® views and schemes are shown. A number of initial conclusions were drawn from a few month experience with the development of this new board. The tables of predicted system parameters are quoted.

The paper describes design and performance of the DOOCS (distributed, object oriented) based control system for the cavity simulator and controller (SIMCON). A concise description of the DOOCS system is given. Resident data types and data flow throughout the Simcon system are discussed. The basic ideas and implementation issues of the server and client application are described as well as some alternatives to the DOOCS solution (considered as partial) is presented.

The aim of the diagnostic system for the ZEUS Backing Calorimeter (BAC) is to maintain high efficiency and reliability of the detector. The diagnostic system includes hardware tests and a setup configuration tool for the First Level Trigger (FLT) of BAC. This paper describes the test functions of the BAC FLT diagnostic system. Examples of its applications are also presented.

A concise overview of the laboratory solution of the FPGA based TESLA cavity simulator and controller (SIMCON) is presented. The major emphasis is put in this paper on the high level part of the system. There were described the following steps of the system design and realisation: solution choice, design of system components, implementing the solutions, introduction of the application, initial analysis of the working application. The paper is a first description of the working DOOCS server for the FPGA based TESLA cavity SIMCON (which is a part of the LLRF subsystem). The data gathered from the work of the DOOCS server promise for the system optimisation possibilities. The server will be supplemented with the GUI in the next step of this effort. Throughout the work we will refer to the debated system as to the TESLA SIMCON DOOCS server or in short the “simcon server”. The hardware layer of the TESLA cavity SIMCON (to which the designed software refers to) was realized in a single FPGA Virtex chip by Xilinx (XC2V3000 development board by Nallatech).

The idea and realization of data presentation system is described in this paper. Data is received from the diagnostic system of the BAC detector. The presented system is a part of the DQMS (Data Quality Monitoring and Management). The system enables graphical presentation of the location of electronic blocks. It is possible to indicate the links between these blocks, and the actual state of the specified components. The aim to build this system was to assure the proper working of the BAC detector, and in the case of detecting abnormalities to find them out as soon as possible, detect the place of the error and the causes of the failure. The presented software helps to find the errors and is a sort of knowledge compendium about the BAC detector (its equipment, links structure, etc.). The engineering of the visualization system as well as functional tasks were described, and the discussion of the results was made. Some examples, showing the usage of the system, and the received results of its work were presented.© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

This paper presents a FPGA based DSP system for realtime simulation of superconducting accelerator’s cavity. The superconducting linacs require sophisticated control systems for maintaining the constant amplitude and phase of accelerating field in the accelerator’s cavities. The debugging of these systems on real hardware can be both difficult and dangerous. To allow testing of the real LLRF systems in the real time and with different cavity parameters, the FPGA based system has been developed.

New hardware and software developments on the Backing Calorimeter (BAC) for the ZEUS detector are presented. The modernization of the detector was related to the recent luminosity upgrade of the HERA accelerator. The role and place of the BAC detector in the ZEUS experiment is described with special emphasis on the new BAC muon trigger and its diagnostic and monitoring system. This overview introduces a series of detailed articles following in this chapter of the SPIE proceedings.© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

One of the most important aims of the BAC diagnostic system is to provide high reliability of the detector. Part of this task is to minimize noises in the position readout and to find optimal thresholds for comparators. Presented paper describes the method of handling this complex problem. In addition collecting a high statistic sample of muon tracks in the clean environment allows to verify the data base describing the mapping of readout channels onto the detector geometry.

This work describes a design and development of the Internet system for the data quality monitoring during the Backing Calorimeter (BAC) operation in the ZEUS experiment and for the archive data analysis. The development includes functional data base system application, data interaction processes and the web interface, built using PHP scripts and JAVA applets. The system implementation process, in ZEUS experiment, was described and its performance results were presented, based on the selected examples.

The paper presents functional structure of database system of data measurement quality for BAC detector in ZEUS experiment. The system collects diagnostic and experimental data. Diagnostic data are: work parameters of the detector and electronics/photonics, tests of electronic/photonic blocks. These data are archived for certain period of time. The quality of current data collection process is estimated using these archived data. The result of such estimation is generated in a form of status map of the detector. Such maps, describing status of the hardware, are fundamental for elementary particle analysis by the calorimeter. The DAQ system, collecting data to the database, estimates data quality on-line during transmission and writing. This mechanism of fast on-line data quality management leads to early discoveries of detector work irregularities and faults.© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

The paper presents ideas and realization of hardware (photonics and electronics) and software diagnostic layers of TRIDAQ for BAC calorimeter of ZEUS experiment at HERA accelerator. The aim of diagnostic system (DS) is to provide high reliability of the BAC. The diagnostic system localizes, in the fastest possible way, place, time and cause of any breakdown inside the BAC. Functionalities of diagnostic system were discussed. Construction of distributed, diagnostic hardware layer was presented. The software layer of the system was designed using the object-oriented approach. Object oriented virtual classes were defined. These classes control electronics and photonics devices and sub-systems. Application examples were presented. The implementation results of DS for TRIDAQ were discussed.© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.