SUPERCONDUCTING cables, RUNNING training, ELECTRIC potential, SUPERCONDUCTING films, and CABLE manufacturing
Aiming to achieve a superconducting feeder cable system applicable to Japan, France, and other countries, we summarize the required specifications created for prototyping of superconducting cables. Superconducting cables manufactured based on the required specifications were subjected to voltage, current, and other tests and then verification tests using train. The abovementioned test results have given us good prospects for superconducting feeder cables that can be applied to actual lines in Japan and France. Simulation was conducted to check the effect of these superconducting cables in actual lines. Analysis results were obtained to confirm that the introduction of a 310-m superconducting cable had an effect of compensating for voltage drops. [ABSTRACT FROM AUTHOR]
NANOELECTROMECHANICAL systems, ENGINEERS, SCIENTISTS, PROTOTYPES, SCANNING systems, and X-rays
The scientists and engineers at Argonne and Brookhaven are collaborating to develop a new nanopositioning system for the NSLS-II Hard X-ray Nanoprobe. In this paper we present the design and development of an advanced sample-scanning stage system prototype for an MLL-based hard x-ray nanoprobe. The design and prototyping activities for the Brookhaven NSLS-II nanopositioning system will also benefit the ongoing development of the Argonne CNM/APS MLL-based hard x-ray nanoprobe with hard x-ray focusing in the nanometer scale. [ABSTRACT FROM AUTHOR]
Nuclear Instruments & Methods in Physics Research Section A. Jan2013, Vol. 699, p93-96. 4p.
METAL strip, SILICON diodes, LARGE Hadron Collider, ELECTRONICS, and MASS production
Abstract: This paper describes the baseline integration structures for the silicon strip sensors to be used in the ATLAS detector for the Phase-II upgrade of the Large Hadron Collider (LHC) machine, the so-called High Luminosity LHC (HL-LHC). Highly modular structures have been developed for the integration of the silicon strips sensors, readout electronics, cooling, and support structures, called ‘staves’ for the barrel region and ‘petals’ for the end-caps of the ATLAS strips tracker. This work describes the status of the current prototypes, the building procedure, designed for mass production even at a prototyping stage, and their electrical performances. [Copyright &y& Elsevier]
NUCLEAR counters, LARGE Hadron Collider, COOLING, RESEARCH & development, REDUNDANCY (Engineering), FINITE element method, and PERFORMANCE evaluation
The Pixel Detector is the innermost tracking detector of the ATLAS experiment at the Large Hadron Collider (LHC) at CERN. A new internal pixel layer will be installed inside the existing three, in the space between the actual B-layer and a new smaller beam-pipe. The tracking performance will be enhanced due to a smaller radius, and the presence of a fourth layer will give higher redundancy and reliability to the Pixel Detector. After a description of this project and its relevant requirements, the current work on the design of local support and cooling channel is presented as well as the results of FEM analyses, of experimental prototyping, measurements and tests. [ABSTRACT FROM AUTHOR]
Nuclear Instruments & Methods in Physics Research Section A. Jun2009, Vol. 604 Issue 1/2, p288-292. 5p.
LARGE Hadron Collider, PHYSICS experiments, CALIBRATION, COSMIC rays, NUCLEAR track detectors, and PHYSICS projects
Abstract: The ATLAS Semiconductor Tracker (SCT) has been installed, and fully connected to electrical, optical and cooling services. Commissioning has been performed both with calibration data and cosmic ray events. The cosmics were used to align the detector, measure the hit efficiency and set the timing. The SCT is now ready to take data when the LHC turns on this autumn. At the same time, it is clear that the present ATLAS tracker will need to be renewed for projected luminosity upgrade of the LHC, the SLHC. This is mainly driven by occupancy and radiation hardness issues. The new tracker will likely be entirely made of silicon, with the space of the present SCT largely taken up by detectors with much shorter strips. Several large-scale R&D projects on the sensors and module concepts for this upgrade are running, including sensor and module prototyping. We will report upon the commissioning experience from the SCT, use it to extract valuable lessons for future silicon tracker projects, and give an up-to-date overview of the status and results of the R&D efforts for the ATLAS tracker upgrade. [Copyright &y& Elsevier]