منابع مشابه
Irradiation of thin carbon foils with non-homogeneous laser beams
Thin C-foils heated with intense laser beams are used at the Z6 experimental area to investigate energy loss and charge state distribution of heavy ions in a plasma [1]. The presented calculations show the advantage of the 2-sided foil heating versus its 1-sided heating when the irradiating laser flux is spatially strongly non-uniform. Irradiation from two opposite sides can be realized by usin...
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Kapton polyimide is known for its high thermal stability, >400 ◦C. Copper sulfide thin films of 75 and 100 nm thickness were coated on DuPont Kapton HN polyimide foils of 25 μm thickness by floating them on a chemical bath containing copper complexes and thiourea. The coated foils were annealed at 150–400 ◦C in nitrogen, converting the coating from CuS to Cu1.8S. The sheet resistance of the ann...
متن کاملEnhanced laser-ion acceleration in thin foils of reduced surface
Ion acceleration in the interaction of ultrashort intense laser pulses (~ 2×10 W/cm, 10s-100s fs) with thin solid foils of limited transverse extend (~ 10s of μm) is measured experimentally and studied numerically (by PIC simulations). Reducing the target surface area allows hot electrons to be reflected from target edges during or shortly after the laser pulse. This transverse refluxing in suc...
متن کاملEnergy straggling of heavy ions in thin foils
2014 The energy straggling of heavy ion beams at tandem energies, passing through thin foils, has been studied with ions of mass up to A = 35. Charge exchange in the foils has been found to have a considerable effect on the energy spread. Thickness non-uniformities in the foils can also make significant contributions. Extrapolation of the observations to the case of a uniform carbon stripper fo...
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Freshly drawn heparinized human whole blood is exposed to x-rays in amounts up to 54,000 r in vitro and then equilibrated under a controlled atmosphere at 24 or 38 degrees C. For as long as 26 hours following exposure, potassium is progressively lost from the cells and quantitatively replaced by sodium with little, if any, osmotic disturbance. The mean rate of loss at 20,000 r and 24 degrees C....
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods
سال: 1962
ISSN: 0029-554X
DOI: 10.1016/0029-554x(62)90082-4