منابع مشابه
352-mhz Klystron Performance at the Advanced Photon Source
The general performance of the Advanced Photon Source (APS) 352-MHz/1-MW continuous wave (CW) klystrons is discussed. The original seven-klystron inventory at the Advanced Photon Source has been in operation since 1995 with good results. Five tubes are presently in accelerator operation, with two tubes as spares. The overall performance of the tubes has been very good. Two tubes were removed fr...
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It is well known that, in steady isentropic expansion of a gas from a reservoir, the maximum mass flux density, pu, occurs at Mach number M=u/a= 1 (p, u, and a are the local values of density, velocity, and speed of sound, respectively; po, 0, and a0 are corresponding reservoir values.) The proof is usually given for the special case of a perfect gas and it does not seem to be well known that t...
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THE TITLE COMPOUND [SYSTEMATIC NAME: (S)-1,3-dicarboxy-propanaminium chloride], C(5)H(10)NO(4) (+)·Cl(-), has been investigated previously by Dawson [Acta Cryst. (1953). 6, 81-83], with R = 0.106 and without the location of H atoms, and then by Sequeira, Rajagopal & Chidambaram [Acta Cryst. (1972). B28, 2514-2519] using neutron diffraction with R = 0.043. The present determination at 153 K has ...
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Foreground subtraction is the biggest challenge for future redshifted 21 cm observations to probe reionization. We use a short GMRT observation at 153MHz to characterize the statistical properties of the background radiation across ∼ 1◦ to sub-arcminutes angular scales, and across a frequency band of 5MHz with 62.5 kHz resolution. The statistic we use is the visibility correlation function, or ...
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Graphite and advanced carbon fiber composites (CFC) are widely used inside the vacuum vessel of magnetic fusion devices. However, erosion by chemical sputtering via hydrocarbon formation might limit their application as target material in future machines like ITER. The first systematic study of the chemical erosion of graphite and different CFCs (including a silicon-doped one) as a function of ...
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ژورنال
عنوان ژورنال: Australian Journal of Physics
سال: 1967
ISSN: 0004-9506
DOI: 10.1071/ph670697