Six 203.2 mm × 101.6 mm × 12.7 mm beams and five 203.2 mm × 203.2 mm × 9.5 mm beams manufactured with vinylester resin were strengthened with one of three systems and subjected to concentrated loads applied directly to the top flange.
Groups of mice had a training day of five trials on the 12-mm beam and five trials on the 5-mm beam.
The optimum parameters for laser cladding were: 1.6 2.0 kW laser power, 300 500 mm/min traverse speed, 3 mm beam diameter and 5 7 g/min feed rate.
The head of the instrument was moved over a 150 x150 mm2 area with 1 mm steps, using a 1 mm beam spot and acquisition time of 2 seconds per pixel.
All remaining imaging parameters were kept constant: 0.7 s tube rotation time, 1.375 pitch, 40 mm beam collimation and 23 cm field of view.
Given the 1 cm pathlength of the cuvette, a 1 mm beam width, and scatter due to the packed spheres, the sampling volume is approximately 25 uL.
Specular X-ray diffraction (SXRD) measurements were performed on a PANalytical EMPYREAN reflectometer fitted with a Cu sealed tube (λ = 1.54 Å), a 1/32° primary slit, a 10 mm beam mask and a multilayer mirror on the primary side.
Specifically, for a 4.5 mm flat beam and a 2.4 mm × 2.5 mm photodetector, the optimal performance was found to be when the source and detector are adjacent to each other.
In this study, given 1-W incident power and 2 mm beam diameter, the laser irradiance was ~32 W/cm and the maximum exposure duration for safety limit was ~0.1 s.
In this study two models, N5 and N6, with 700 and 600 mm beam heights, respectively, were analyzed.
The head integrates a 50-kV molybdenum X-ray generator that produces a 1 mm beam spot on the painting and a fast-counting silicon drift detector to collect the X-rays emitted by the irradiated point.
