65 research outputs found
Comparison of “Zero Emission” Vehicles with Petrol and Hybrid Cars in Terms of Total CO2 Release—A Case Study for Romania, Poland, Norway and Germany
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Simulation of a suite of generic long-pulse neutron instruments to optimize the time structure of the European Spallation Source
We here describe the result of simulations of 15 generic neutron instruments for the long pulsed European Spallation Source. All instruments have been simulated for 20 different settings of the source time structure, corresponding to pulse lengths between 1 ms and 2 ms; and repetition frequencies between 10 Hz and 25 Hz. The relative change in performance with time structure is given for each instrument, and an unweighted average is calculated. The performance of the instrument suite is proportional to a the peak flux and b the duty cycle to a power of approximately 0.3. This information is an important input to determining the best accelerator parameters. In addition, we find that in our simple guide systems, most neutrons reaching the sample originate from the central 3 5 cm of the moderator. This result can be used as an input in later optimization of the moderator design. We discuss the relevance and validity of defining a single figure of merit for a full facility and compare with evaluations of the individual instrument classes
Imaging and Analytics Instruments at HBS: Source parameters and boundary conditions for the instrumentation at the HBS
Spectrometers at HBS: Source parameters and boundary conditions for the instrumentation at the HBS
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