Tango Kernel Status and Evolution

Abstract This paper has two different parts. After a brief introduction, the changes done within the Tango[1] kernel since the last Icalepcs conference will be described. The second part will focus on the foreseen evolution of the Tango kernel. Special emphasis on the the so-called Tango event system (asynchronous and event driven communication between client and server) will be given. Since its beginning, within Tango, this type of communication is implemented using a CORBA (Common Object Request Broker Architecture) notification service implementation called omniNotify. This will be replaced by a new system based either on a home made design or based on an implementation of the DDS (Data Distribution Service). The final choice is not done at the time of writing this paper

500 FS STREAK CAMERA FOR UV-HARD X RAYS IN 1KHZ ACCUMULATING MODE WITH OPTICAL -JITTER FREE-SYNCHRONISATION

Abstract The development at the ESRF of a jitter-free, laser triggered Streak Camera has now yielded time resolution results as short as 460fs while operating in accumulating mode. The so-called jitter-free synchronisation between the laser light and the Streak Camera is performed through a GaAs photo-switch in a simple HV circuit that connects directly to the Streak tube's deflection plates. The novelty of this technique permits to obtain excellent dynamic range measurements in a shot-to-shot accumulation of ultra fast (laser stimulated) events at up to 1Khz without degrading the time resolution. Important insight was obtained on the quality of this optical synchronisation and its dependence on the laser characteristics, the switch circuit, and the structure of the GaAs switch itself. This permitted to suppress the jitter causes and today the 500fs limitation is imposed by the streak tube's intrinsic time resolution. This work was done by measuring (with Au or Pd photo-cathodes) the 3 rd harmonic (i.e. 267nm) of a 100fs Ti:Saph laser. Also important progress was made with the reliability of the photo-switch and problems of HV break-down and structural degradation have been completely resolved. Since the principal use of this system at the ESRF is in ultra-fast X-ray diffraction experiments the exchangeable photo-cathode structure of this tube covers the entire UV-to-X-rays spectrum. The QE of various photo-cathode materials was measured in the 8-30KeV range

COMPARISON OF TRANSVERSE SINGLE BUNCH INSTABILITIES BETWEEN THE ESRF AND ELETTRA

Abstract Transverse single bunch instabilities are measured, analysed and compared between the ESRF and ELETTRA, to obtain a deeper insight, namely how different effects influence coherent transverse motions. Despite the basic similarity of the two machines, being both examples of third generation light sources, it is found that some distinct differences in the relevant parameters such as the energy and optics, as well as the impedance, lead to the appearance of instabilities in a notably different manner. As well as summarising the results of the experiments, modelling of the broadband impedance of the two machines and comparison with expectations are presented

The Cornell-SLAC pixel array detector at LCLS

Abstract Not Provide

Characterization of the eLine ASICs in prototype detector systems for LCLS

Abstract Not Provide

The Economic and Social Research Foundation

The Economic and Social Research Foundation was established in 1994 as an independent, not-for-profit institution for research and policy analysis. The formation of ESRF was based on the assumption that there was need and demand for an improved understanding of policy options and development management issues, and that the capacity for this was lacking in the Tanzania civil service. ESRF addressed this gap by putting into place qualified professional staff, modest resources and a favourable research environment for the analysis and discussion of economic and social policy. The primary objectives of the Foundation are to strengthen capabilities in policy analysis and development management and to enhance the understanding of policy options in the government, the public sector, civil society, and the donor community and the growing private sector.https://repository.upenn.edu/aboutthinktanks/1020/thumbnail.jp

The Pulsed Power Converter And Septum Magnet System For Injection Into The Electron Storage Ring At Esrf

At ESRF, the European Synchrotron Radiation Facility in Grenoble, electrons are accelerated, via a 200 MeV Linac and a 6 GeV synchrotron booster, and injected into the storage ring at 10 Hz rate. Two thin septum blade magnets and an eddy current sheet type septum magnet provide the final deflection of the injected beam. The operational requirements of the e - injection scheme and the resulting demanding hardware specifications are recalled. The pulsed septum magnets are briefly described. The design, circuit layout and construction of the power converters are related with emphasis on innovative aspects of general interest. Results of tests during commissioning are reported. 1. INTRODUCTION The ESRF Storage Ring (SR) [1] injectors comprise a 200 MeV Linac and a fast cycling Booster Synchrotron (BS). A repetition rate of 10 Hz keeps the beam charging times short compared with the beam lifetime. The actual parameters of the SR are summarized in Table 1. Table 1: Parameters of the ESRF..