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3141“…The variation of the secondary electron yield (SEY) of sputter-cleaned OFHC-copper has been studied as a function of air exposure duration at room temperature. After short air exposures of some seconds the maximum SEY (deltaMAX) of clean copper is reduced from 1.3 to less than 1.2, due to the oxidation of the copper surface. …”
Enlace del recurso
Enlace del recurso
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3142“…Built in the beginning of 1970's, the Computer Centre air-conditioning and cooling systems were designed to be modular and easily adaptable to the unpredictable future needs of computing. …”
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3143“…Only in some cases the air-formed oxide can contribute to the air exposure induced SEY increase while many oxides have a lower SEY than their parent metals. …”
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Enlace del recurso
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3144
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3145
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3146por Gasser, D“…The heat flow released to the air along the LHC sector 3-4 will be removed by the ventilation system, which will operate at 45000 m3/h. …”
Publicado 2003
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3147por Grupen, C, Kurt, M T, Mailov, A, Müller, A S, Putzer, A, Rensch, B, Sander, H G, Schmeling, S, Schmelling, M, Wachsmuth, H W, Ziegler, T, Zuber, K“…The ALEPH detector at LEP has been supplemented with five scintillator telescopes to measure the muon component of cosmic ray air showers underground. The emphasis of the present analysis of a new data set is to measure coincidences over distances up to about 1km which are sensitive to the forward production of hadronic interactions and the chemical composition of primary cosmic rays in the energy range around 10**1**5eV. …”
Publicado 2003
Enlace del recurso
Enlace del recurso
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3148por Kotaidis, V, Grupen, C, Luitz, S, Mailov, A, Müller, A S, Putzer, A, Rensch, B, Sander, H G, Schmeling, S, Schmelling, M, Tcaciuc, R, Wachsmuth, H W, Ziegler, T, Zimmermann, D, Zuber, KEnlace del recurso
Publicado 2003
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3149
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3150
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3151
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3152
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3153
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3154
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3155
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3156
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3157
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3158
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3159
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3160por Cicoria, Gianfranco, Cesarini, Francesco, Infantino, Angelo, Vichi, Sara, Zagni, Federico, Marengo, Mario“…In the production of Positron Emission Tomography (PET) nuclides at a medical cyclotron facility 41Ar (T1/2 = 109.34 m) is produced by the activation of air due to the neutron flux, according to the 40Ar(n, γ)41Ar reaction. …”
Publicado 2017
Enlace del recurso
Enlace del recurso