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Beam-beam deflections to measure size spot and offset at SLC IP

Description: As soon as two SLC beams make it to the intersection region, both transverse offsets, spot sizes and shapes can be extracted from the pattern of angular deflections produced by the electromagnetic interaction of the two beams, as one is scanned across the other. These deflections, measured in two high resolution Beam Position Monitors (BPM) mounted symmetrically on both sides of the intersection point, will produce detectable signals allowing spot sizes to be tuned, even with the very low lumin… more
Date: June 10, 1985
Creator: Bambade, P.
Item Type: Refine your search to only Report
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Disruption and luminosity of flat beams

Description: It has been suggested (ref.1) that high energy linear colliders might operate with non-round beam profiles, i.e. with different sigma/sub x/ and sigma/sub y/, described by an aspect ratio R = sigma/sub y/sigma/sub x/. The advantage of flat beams is the expectation, that ''beamstrahlung'', i.e., beam-beam synchrotron radiation is reduced with increasing R. The reason for this reduction comes from the fact that for constant bunch area and therefore constant luminosity the mean physical distance b… more
Date: June 10, 1985
Creator: Hollebeek, R. & Minten, A.
Item Type: Refine your search to only Report
open access

Progress in development of low density polymer foams for the ICF Program

Description: This report describes the status of CH foam development with densities of 50 mg/ccs and cell sizes of 1 ..mu..m for the ICF Program. Two approaches that both involve polymer phase separation are being investigated. The first involves a gelation-crystallization of high molecular weight polyethylene from solution, whereas the second approach involves the modification of the phase separation morphology of water-styrene emulsions by molecularly-tailored surfactants followed by polymerization of the… more
Date: June 10, 1985
Creator: Letts, S. A.; Lucht, L. M.; Morgan, R. J.; Cook, R. C.; Tillotson, T. M.; Mercer, M. B. et al.
Item Type: Refine your search to only Report
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