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Topic: Lattice beam

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Space frame

	Bridges By Type: Beam Bridges
		This beam bridge, having had its railings replaced, was mainly noted for a highly unusual concrete pier.
		This 1950s beam bridge was demolished, even though it was in decent condition.
		This 1920s lattice guardrail beam bridge is open to traffic and is in great condition.
	www.historicbridges.org /b_t_beam.htm (586 words)

	[No title]
		lattice = d1halfdrift + fquad + d2halfdrift + d2halfdrift + dquad + \ d1halfdrift madtowarp(lattice) # Lattice periodicity, etc. top.zlatperi = lperiod # periodicity length of lattice (m) top.zlatstrt = 0.
		The number of grid cells and grid bounds are chosen consistent # with the grid containing the beam pipe and being 2^n cells for and # efficient FFT field solve.
		# nstep = 50 # number s-steps per lattice period nadvance = 20 # number lattice periods to advance (can be non-int) ndiag = 50 # number of moment accumulations per lattice period # nstep/ndiag must be integer to accumulate at # the same phase in each period.
	uspas.fnal.gov /materials/simulations/ag-slice.py (1938 words)

	NIST Optical Frequency Measurements Group
		We overlap a tightly focused lattice beam (1 W of power near 760 nm) with the green magneto-optic trap for 30 ms, during which ~ 5000 atoms are loaded into the potential wells of the lattice.
		To excite the clock transition, a well-stabilized probe laser beam at 578 nm is overlapped with the lattice beams (although it is only a traveling wave since it passes through the retro-reflecting mirror).
		With the atoms trapped in the lattice, a probe pulse of 3-200 ms is used to excite the atoms.
	tf.nist.gov /ofm/calcium/ybhome.htm (868 words)

	APT: High-Energy Beam Transport (HEBT) (Site not responding. Last check: 2007-11-03)
		The beam- focusing lattice in the HEBT is a continuation of the doublet-focusing lattice in the high-beta high-energy linac.
		The matching quadrupoles adjust the desired beam spot size, the raster magnets move the spot on a rectangular grid (shown in the figure at right), and the expander maps this grid onto the active area of the target/blanket.
		A beam stabilizer is located just upstream of the beam expander to correct for dynamic fluctuations in the beam trajectory and maintain the beam trajectory on axis in the expander.
	public.lanl.gov /apt/tour/05_hebt.html (567 words)

	Steeledale
		The lattice is produced on sophisticated electronic welding machines and is produced from high tensile wire of 485 MPa in accordance with BS 4482.
		The lattice produced is die-straight which means that the resultant beam is not subject to curvature as is possible in alternative systems.
		The lattice girder is therefore suitable for a variety of other uses from lightweight strong-backs for lateral support to girders and posts for simple shed construction and spacer units for reinforcing steel in walls and slabs.
	home.intekom.com /intekom/international/small/steeledale/fbe.htm (442 words)

	Session 7P - High-Energy Hadron Accelerators and Colliders, Room-Temperature Magnets 2, RF Systems (Other), Alignment ...
		Due to the high current of the beams, the beam kick is tapered from 100% to 80% in 7.33\mu S (the beam transit time around the ring).
		The accelerated beam is slowly extracted by the diffusion r esonant extraction scheme(K. Hiramoto, et al., NIM A322 p154(1992)), that is, making the beam diffuse by the transverse RF noise and extractin g the particles reaching to the separatrix of the nonlinear resonance, which is kept constant during the extraction.
		To diminish beam specific power it is suggested to move a beam with small cross-section along the butt-end surface of a large cylindrical target using scanning magnets.
	flux.aps.org /meetings/YR97/BAPSPAC97/abs/S460.html (17821 words)

	Ezidek© Lightweight Suspended Concrete Floor System.
		The bottom chords of the trusses are encased in a band of lightweight, high strength concrete which, in cross section, stands out from each side of the inclined web members of the lattice beam trusses.
		Expanded polystyrene void formers are placed between; and supported on; the concrete outstands at the bottom of adjacent lattice beams.
		Concrete to a minimum thickness of 80mm is then placed over the assembly to provide a one-way floor incorporating parallel 'T' beams whose soffit formwork is the base band of the lattice beams and whose bottom reinforcement is the embedded bottom chord steel of the lattice beam.
	www.spec-net.com.au /press/1105/ezidek.htm (349 words)

	Bailey Road Bridge Historic Bridge with Lattice Guardrails in St. Clair County Michigan
		Besides, the lattice guardrails on these bridges, if they are undamaged, are quite attractive compared to modern guardrails.
		The Bailey Road Bridge is an example of a small lattice beam bridge on a public road, which has been closed by the county.
		This standard structure type is characterized by corrugated steel forming the base of the deck, and also by their lattice guardrails, which were mounted using steel braces.
	www.historicbridges.org /beam/bailey (387 words)

	Structural Benchmark Testing of Superalloy Lattice Block Subelements Completed
		The testing was performed in-house at the NASA Glenn Research Center Structural Benchmark Test Facility, where the subelement-sized beam specimens were loaded at room and elevated temperatures to observe their elastic and plastic behavior, strength, and fatigue resistance.
		Superalloy lattice block panels, which are produced directly by investment casting, are composed of thin ligaments arranged in three-dimensional triangulated trusslike structures (see the preceding figure).
		The value of a single face sheet was demonstrated by increased bending moment capacity, where the face sheet simultaneously increased the gross section modulus and braced the compression ligaments against early buckling as seen in open-cell specimens.
	www.grc.nasa.gov /WWW/RT/2003/5000/5920krause1.html (582 words)

	Amazon.com: Particle Accelerator Physics I: Basic Principles and Linear Beam Dynamics: Books: Helmut Wiedemann (Site not responding. Last check: 2007-11-03)
		Perturbations to linear beam dynamics are analysed in detail and correction measures are being discussed.
		Basic lattice design features and building blocks leading to the design of more complicated beam transport systems and circular accelerators are studied.
		Characteristics of synchrotron radiation and quantum effects due to the statistical emission of photons on particle trajectories are derived and applied to determine particle-beam parameters.
	www.amazon.com /exec/obidos/tg/detail/-/354064671X?v=glance (605 words)

	Frames- MTT Structures (Site not responding. Last check: 2007-11-03)
		Twin lattice beam arches covered by a high grade P.V.C. polyester completely enclosed with igloo style entrance.
		Twin lattice beam arches covered by a high grade P.V.C. polyester with back wall.
		Twin lattice beam arches covered by a high grade P.V.C. polyester with no walls.
	www.marquee.co.za /structures/frame.html (106 words)

	Budds Farm WWTW
		Due to the European legislation covering odour control, Southern Water decided it was necessary to provide enclosed waste treatment tanks at Budds Farm, Portsmouth and the opportunity was taken to introduce a new design based on the use of Racolin’s GRP lattice beams.
		The rotating roofs improved the energy efficiency of a traditional scraper bridge by adding scraper blade sets to each of the 10No.
		10m beams designed and tested to include for a central pedestrian area as well as working and environmental loads.
	www.racolin.co.uk /index_files/bfwwtw.htm (133 words)

	WP16: Lattice Design and Beam Optics/Dynamics (Site not responding. Last check: 2007-11-03)
		Beam transport and distribution to user beam lines
		Lattice in undulator systems, phase shifters, correctors, matching sections
		The Technical Design Report (TDR) of the European X-ray Free Electron Laser (XFEL) facility was published in July 2006.
	xfel.desy.de /projectgroup/workpackages/e448/e633 (62 words)

	NLC Beam Delivery Group Meeting List
		Radiation Safety Calculations for the NLC 2001 Layout and Modifications to the new FF to handle round beams for gamma-gamma running
		Depolarization due to Beam Offsets in the Beam-Beam Interaction
		ANSYS Calculations of Support Tube to Stabilize the FF Quads; Discussion of Changes to the IR model to be presented in 2000 Conferences
	www-sldnt.slac.stanford.edu /nlc/meetings_beamdelivery.asp (899 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
		Energy Citations Database (ECD) Document #5606659 - Colliding-beam-accelerator lattice
		Availability information may be found in the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or via the "Full-text Availability" link.
		430303 -- Particle Accelerators-- Experimental Facilities & Equipment; ;ISABELLE STORAGE RINGS-- BEAM DYNAMICS; BEAM BENDING MAGNETS;BEAM FOCUSING MAGNETS;BEAM OPTICS;COLLIDING BEAMS
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=5606659 (116 words)

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