Design and Development of a Diagnostics Client for a Beam Loss ...
Design and Development of a Diagnostics Client for a Beam Loss ... Design and Development of a Diagnostics Client for a Beam Loss ...
LIST OF TABLES Table 1: BLEDP Acquisition Frame . . . . . . . . . . . . . . . . . . . . . . . . 27 Table 2: Portion of Status Buffer Example . . . . . . . . . . . . . . . . . . . . 29
INTRODUCTION The Large Hadron Collider (LHC) Injectors Upgrade project was launched at CERN to provide higher intensity beam for the LHC, which will allow an increase of its luminosity. A new Beam Loss Monitoring (BLM) system is under design for the monitoring of the beam losses and the machine protection. The BLM Dual Polarity (BLEDP) module is the first stage of that system. The acquisition crate will be able to host up to 8 BLEDP modules each having 8 analogue inputs to attach various detectors. The BLEDP module should be able to digitise input current in a wide range from 10 pA up to 200 mA. The total range is split into two partially overlapping sub-ranges and for each of them a different mea- surement method is used. The current from 100 mA up to 200 mA should be measured directly by the ADC as a voltage drop on the input resistor. This method is called Direct Analogue Digital Conversion (DADC). The current in the lower range from 10 pA to 10 mA is measured by making use of a low noise Fully Differential Frequency Converter (FDFC). The BLEDP module is equipped with a Cyclone 4GX150 FPGA which is responsible for the processing of the FDFC data. In the standalone version of the module a custom made Ethernet server is implemented in the FPGA. The server is written in the C Programming Language. [10] Each BLEDP module in the acquisition crate can have a separate Ether- net link. The measurement data is sent to a dedicated JAVA client application which is the main subject of this thesis. The task of the client is to send commands to the server, col- lect, view and store the different types of acquisition data. The application is a Graphical User Interface (GUI) and makes use of the Java Swing Framework and many other Java features such as multi-threading and file I/O manipulation.
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LIST OF TABLES<br />
Table 1: BLEDP Acquisition Frame . . . . . . . . . . . . . . . . . . . . . . . . 27<br />
Table 2: Portion <strong>of</strong> Status Buffer Example . . . . . . . . . . . . . . . . . . . . 29
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