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3321por Alesini, D, Spataro, B, Migliorati, M, Mostacci, A, Palumbo, L, Baglin, V, Jenninger, B, Ruggiero, F“…The coupling impedances of the upgraded beam screen and cold/warm transition of the cold bore experiment (COLDEX) vacuum chamber installed in the SPS machine are investigated, and the power dissipated in the circular beam screen with narrow longitudinal slots are evaluated. …”
Publicado 2007
Enlace del recurso
Enlace del recurso
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3322“…The magnets for this upgrade require central magnetic field from 2 T (for a PS upgrade) to 4.5 T (for an SPS upgrade), for which superconducting magnets are a candidate. …”
Enlace del recurso
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3323“…Here we will describe design proposals for the phase I upgrade lay-out, i.e. luminosity up to 2.5 10^34 cm^-2 s^-1.…”
Enlace del recurso
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3324
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3325
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3326por Ullán, M“…As previously reported, silicon-germanium (SiGe) heterojunction bipolar transistor (HBT) technologies promise several advantages over CMOS for the front-end readout electronics for the ATLAS upgrade. Since our last paper, we have evaluated the relative merits of the latest generations of IBM SiGe HBT BiCMOS technologies, the 8WL and 8HP platforms. …”
Publicado 2008
Enlace del recurso
Enlace del recurso
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3327“…The phase I of the LHC upgrade aims at increasing the luminosity by a factor 2-3 with respect to the nominal luminosity of 10**34 cm**-2s**-1. …”
Enlace del recurso
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3328
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3329
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3330por "Barbero, M“…The new ATLAS pixel chip FE-I4 is being developed for use in upgraded luminosity environments, in the framework of the Insertable B-Layer (IBL) project but also for the outer pixel layers of Super-LHC. …”
Publicado 2009
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3331“…In this work, the magnitude of the electric field and the depletion inside a simplified two dimensional model of the ATLAS planar pixel sensor for the insertable b-layer and the super-LHC upgrade have been studied. The parameters influencing the breakdown behavior were studied using a finite-element method to solve the drift-diffusion equations coupled to Poisson's equation. …”
Enlace del recurso
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3332
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3333
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3334
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3335
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3336por Chen, Hucheng“…A total of 182,468 signals are digitized and processed real-time on detector, to provide energy and time deposited in each detector element at every occurrence of the Level-1 trigger. A luminosity upgrade of the LHC will occur in the years 2018. The current readout electronics will need to be upgraded to sustain the higher radiation levels. …”
Publicado 2010
Enlace del recurso
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3337por Barbero, M“…A new ATLAS pixel chip FE-I4 has been developed for use in upgraded LHC luminosity environments, including the near-term Insertable B-Layer upgrade. …”
Publicado 2010
Enlace del recurso
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3338
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3339por Grenier, P., Alimonti, G., Barbero, M., Bates, R., Bolle, E., Borri, M., Boscardin, M., Buttar, C., Capua, M., Cavalli-Sforza, M., Cobal, M., Cristofoli, A., Dalla Betta, G.F., Darbo, G., Da Via, C., Devetak, E., DeWilde, B., Di Girolamo, B., Dobos, D., Einsweiler, K., Esseni, D., Fazio, S., Fleta, C., Freestone, J., Gallrapp, C., Garcia-Sciveres, M., Gariano, G., Gemme, C., Giordani, M.P., Gjersdal, H., Grinstein, S., Hansen, T., Hansen, T.E., Hansson, P., Hasi, J., Helle, K., Hoeferkamp, M., Hugging, F., Jackson, P., Jakobs, K., Kalliopuska, J., Karagounis, M., Kenney, C., Kohler, M., Kocian, M., Kok, A., Kolya, S., Korokolov, I., Kostyukhin, V., Kruger, H., La Rosa, A., Lai, C.H., Lietaer, N., Lozano, M., Mastroberardino, A., Micelli, A., Nellist, C., Oja, A., Oshea, V., Padilla, C., Palestri, P., Parker, S., Parzefall, U., Pater, J., Pellegrini, G., Pernegger, H., Piemonte, C., Pospisil, S., Povoli, M., Roe, S., Rohne, O., Ronchin, S., Rovani, A., Ruscino, E., Sandaker, H., Seidel, S., Selmi, L., Silverstein, D., Sjobaek, K., Slavicek, T., Stapnes, S., Stugu, B., Stupak, J., Su, D., Susinno, G., Thompson, R., Tsung, J.W., Tsybychev, D., Watts, S.J., Wermes, N., Young, C., Zorzi, N.“…Results on beam tests of 3D silicon pixel sensors aimed at the ATLAS Insertable-B-Layer and High Luminosity LHC (HL-LHC)) upgrades are presented. Measurements include charge collection, tracking efficiency and charge sharing between pixel cells, as a function of track incident angle, and were performed with and without a 1.6 T magnetic field oriented as the ATLAS Inner Detector solenoid field. …”
Publicado 2011
Enlace del recurso
Enlace del recurso
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3340por Gan, K K, Buchholz, P, Kagan, H P, Kass, R D, Moore, J R, Smith, D S, Wiese, A, Ziolkowskic, M“…We have designed two ASICs for possible applications in the optical links of a new layer of the pixel detector to be install inside the ATLAS Pixel detector for the first phase of the LHC luminosity upgrade. The ASICs include a high-speed driver for the VCSEL and a receiver/decoder to decode the signal received at the PIN diode to extract the data and clock. …”
Publicado 2010
Enlace del recurso