Search results for "Point-to-point"

showing 3 items of 3 documents

Thin plastic shell x-ray optics: an update

2003

We present new results from a program to develop large area X-ray telescopes that are made from thin plastic shells. We use multi-shell cylindrical lenses in a point-to-point configuration to form full aperture images of the small focal spot in a an X-ray tube on a microchannel plate detector. The image data are analyzed to yield radial profiles and encircled energy curves. The derived parameters can be extrapolated to the case of a telescope that is a conical approximation to Wolter 1 optics. The plastic shells can be coated with suitable mono- or multilayers that allow for a wideband coverage of X-ray energies. Our current program is focused on the development of a large area, hard X-ray …

Physicsbusiness.industryApertureAstrophysics::High Energy Astrophysical PhenomenaPlastic shell X-ray opticAstrophysics::Instrumentation and Methods for AstrophysicsShell (structure)X-ray opticsX-ray telescopeConical surfaceCondensed Matter PhysicsEncircled energylaw.inventionTelescopePoint-to-point X-ray imagingOpticsApproximate X-ray opticlawMicrochannel plate detectorElectrical and Electronic EngineeringX-ray opticbusiness
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Point-to-point readout for the ALICE EMCal detector

2014

Abstract It is anticipated that the LHC will deliver Pb+Pb collisions at a minimum bias interaction rate of about 50 kHz after the second long shutdown of the LHC in 2018. This will be roughly two orders of magnitude greater than the current data recording rate capability of the ALICE experiment. Therefore a major upgrade of the ALICE detector is planned for the next shutdown to enable ALICE to record data at the full Pb+Pb minimum bias interaction rate delivered by the LHC. A new point-to-point readout system for the electromagnetic calorimeter (EMCal) of ALICE has been developed, to replace the legacy readout bus, that essentially accomplishes this goal, and is being installed during the …

PhysicsNuclear and High Energy PhysicsPoint-to-pointALICE calorimeterLarge Hadron Colliderta114Physics::Instrumentation and Detectorsbusiness.industryDetectorElectrical engineeringFront end electronicsEvent readout rateMinimum biasElectromagnetic calorimeterUpgradeScalable Readout UnitGTL busALICE (propellant)Detectors and Experimental TechniquesNuclear ExperimentbusinessPoint-to-point linksInstrumentation
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A mobile robot for vigilance tasks improved with a new robust and low cost communications system immune to attacks with EMI noise

2006

This work pretends to develop a robot for vigilance tasks that are able to tolerate diverse kinds of attacks and be able to operate in environments with elevated electromagnetic noise, being even immune to sabotage provoked by means of high electromagnetic fields. A new CAN based communications system that interconnects the different devices that compose the mobile robot has been developed to achieve this goal. The system is based on a shielded communications hub, that interconnects diverse nodes by means of CAN. On the other hand, the point to point communication between each node and the hub is carried out by means of economic optical fiber. With this approach all robot devices are connec…

EngineeringPoint-to-pointOptical fiberbusiness.industryElectrical engineeringMobile robotCommunications systemlaw.inventionCAN buslawEMIShielded cableRobotbusinessComputer hardware
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