نتایج جستجو برای: accelerator control system
تعداد نتایج: 3270195 فیلتر نتایج به سال:
Accelerator magnet test facilities frequently need to measure different magnets on differently equipped stands and with instrumentation. Designing a modular highly reusable system that combines flexibility built-in at the architectural level as well component addresses this need. Specification of backbone system, interfaces dataflow for software components core hardware modules, serves basis bu...
The V-code development has been motivated by the necessity of a powerful tool for the beam dynamics on-line simulation. Based on the Ensemble model [1], the V-code provides the possibility of fast and efficient beam dynamics simulation. Such a tool is as important for the accelerator commissioning as for the operating machine. The main principles of the code are the complete accelerator simulat...
Network-based controllers such as PLC’s and measurement stations will be used in the control system of the JAERIKEK joint project (High Intensity Proton Accelerator Facility). The ability for the network hardware and software to be standardized has led to this decision. EPICS software support for those controllers has been designed with special attention paid to robustness. This software has be...
The nature of radiotherapy accelerators is briefly explained. It is argued that these complex safety-critical systems need a systematic basis for testing their software. The paper describes a novel application of protocol specification and testing methods to radiotherapy accelerators. It is explained that the accelerator control system is specified using LOTOS (Language Of Temporal Ordering Spe...
Several experiments are being prepared or conducted at the first phase of the SARAF linac. Two of these experiments are: the Liquid Lithium target and the Foil target. The present report describes the new hardware and software control systems which are currently being built for these experiments.
The China Spallation Neutron Source (CSNS) and the Chinese Accelerator Driven Systems (C-ADS) projects are both underway in China. The CSNS includes a 100 kW RCS accelerator and first beam on target is planned for 2017. The C-ADS project includes a high power superconducting linac with a low energy (25-50 MeV) initial stage by 2015 and higher power deployment later. In addition to these intense...
Although the dominant fields in accelerator electromagnets are proportional to the excitation current, precise control of accelerator parameters requires a detailed understanding of the fields in Main Injector[1][2]magnets including contribution from eddy currents, magnet saturation, and hysteresis. Operation for decelerating beam makes such considerations particularly significant. Analysis of ...
The nature of radiotherapy accelerators is briefly explained. It is argued that these complex safety-critical systems need a systematic basis for testing their software. The paper describes a novel application of protocol specification and testing methods to radiotherapy accelerators. An outline specification is given in LOTOS (Language Of Temporal Ordering Specification) of the accelerator con...
We present a hardware/software implementation of the IEEE 802.15.3 MAC protocol. Processing-intensive and time-critical protocol tasks are handled by a protocol accelerator that is integrated on-chip with a 32-bit general-purpose processor in order to achieve a moderate (20–40 MHz) system clock frequency. This enables low-power wireless devices compliant with this standard, providing high data ...
The Advanced Photon Source (APS) primary and backup injectors consist of two thermionic-cathode rf guns. These guns are being upgraded to provide improved performance, to improve ease of maintenance, and to reduce downtime required for repair or replacement of a failed injector. As part of the process, an injector test stand is being prepared. This stand is effectively independent of the APS li...
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