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“…The Internal Picket Fence is a device to give a timing signal for all events occurring inside the bubble chamber. …”
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“…By synthesising interlocked analogues of previously studied porphyrin–corrole conjugates, we demonstrate that this approach gives access to rotaxanes in which the detailed electronic properties of the axle component are unchanged but whose steric properties are transformed by the mechanical “picket fence” provided by the threaded rings. Our results suggest that interlocked functionalised porphyrins, readily available using the AT-CuAAC approach, are sterically hindered scaffolds for the development of new catalysts and materials.…”
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“…Traditional ‘picket fence’ porphyrin systems have been a topic of interest for their capacity to direct steric shielding effects selectively to one side of the macrocycle. …”
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“…In this context, the picket fence test (PF) is a relevant test to check the Multileaf Collimator (MLC) performances. …”
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“…Internal fixation is very important and we favor LCP plates for long bone fixation and the rib struts are fixed in place by small titanium screws to maintain the “picket fence” design. The muscle is then wrapped around the ribs and the defect is completely reconstructed. …”
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“…A test commonly conducted to measure the positional accuracy of the MLCs is the Picket Fence test. In this study two alterations of the Picket Fence test were performed and evaluated, the first one using radiochromic EBT2 films and the second one the [Formula: see text] diode array phantom and its software. …”
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“…This study evaluates the clinical necessity of a comprehensive weekly (C‐Weekly) MLC QA program compared to the American Association of Physics in Medicinerecommended weekly picket fence test (PF‐Weekly), based on our seven‐year experience with weekly MLC QA. …”
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“…Results The passing rates of the picket fence test were 97%, 92%, 91%, and 87% for error-free and intentional errors. …”
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“…Fences have been modelled via hop probabilities, potentials or explicit picket fences. Our study analyses the different approaches’ constraints and their impact on simulation results and performance. …”
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“…The photo shows the tubes of the BEBC Internal Picket Fence (IPF) installed at the periphery of the vacuum tank of BEBC. …”
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“…In the case of vision, it is the representation of occluded parts of objects we see: When we see a cat behind a picket fence, our perceptual system represents those parts of the cat that are occluded by the picket fence. …”
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“…The MPC MLC was found to agree with Picket Fence to within 0.3 mm and the MPC jaw check agreed with in‐house EPID measurements within 0.2 mm. …”
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“…RESULTS: Analysis of picket fence tests revealed a dependence of the error upon the gantry angle. …”
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“…The array of proportional counters of the Internal Picket Fence are already installed at the periphery of the vacuum tank. …”
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“…The main modification was the installation of the IPF (Internal Picket Fence) to complement the External Muon Identifier (see Annual Report 1980, p.64). …”
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