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Relevant bibliographies by topics / Collisional cooling

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Dissertations / Theses
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Academic literature on the topic 'Collisional cooling'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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Journal articles on the topic "Collisional cooling"

1

Son, Hyungmok, Juliana J. Park, Wolfgang Ketterle, and Alan O. Jamison. "Collisional cooling of ultracold molecules." Nature 580, no. 7802 (2020): 197–200. http://dx.doi.org/10.1038/s41586-020-2141-z.

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Liu, Y., J. F. Liang, G. D. Alton, J. R. Beene, Z. Zhou, and H. Wollnik. "Collisional cooling of negative-ion beams." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 187, no. 1 (2002): 117–31. http://dx.doi.org/10.1016/s0168-583x(01)00844-8.

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Luding, Stefan, and Alexander Goldshtein. "Collisional cooling with multi-particle interactions." Granular Matter 5, no. 3 (2003): 159–63. http://dx.doi.org/10.1007/s10035-003-0136-8.

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Wolf, D. E., T. Scheffler, and J. Schäfer. "Granular flow, collisional cooling and charged grains." Physica A: Statistical Mechanics and its Applications 274, no. 1-2 (1999): 171–81. http://dx.doi.org/10.1016/s0378-4371(99)00434-3.

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Vogl, Ulrich, and Martin Weitz. "Laser cooling by collisional redistribution of radiation." Nature 461, no. 7260 (2009): 70–73. http://dx.doi.org/10.1038/nature08203.

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Li, Xiang-Yu, Axel Brandenburg, Gunilla Svensson, Nils E. L. Haugen, Bernhard Mehlig, and Igor Rogachevskii. "Condensational and Collisional Growth of Cloud Droplets in a Turbulent Environment." Journal of the Atmospheric Sciences 77, no. 1 (2019): 337–53. http://dx.doi.org/10.1175/jas-d-19-0107.1.

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Abstract We investigate the effect of turbulence on the combined condensational and collisional growth of cloud droplets by means of high-resolution direct numerical simulations of turbulence and a superparticle approximation for droplet dynamics and collisions. The droplets are subject to turbulence as well as gravity, and their collision and coalescence efficiencies are taken to be unity. We solve the thermodynamic equations governing temperature, water vapor mixing ratio, and the resulting supersaturation fields together with the Navier–Stokes equation. We find that the droplet size distrib

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Coppola, Carla Maria, François Lique, Francesca Mazzia, Fabrizio Esposito, and Mher V. Kazandjian. "Temperature and density dependent cooling function for H2 with updated H2/H collisional rates." Monthly Notices of the Royal Astronomical Society 486, no. 2 (2019): 1590–93. http://dx.doi.org/10.1093/mnras/stz927.

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Abstract The energy transfer among the components in a gas determines its fate. Especially at low temperatures, inelastic collisions drive the cooling and the heating mechanisms. In the early Universe as well as in zero- or low-metallicity environments the major contribution comes from the collisions among atomic and molecular hydrogen, also in its deuterated version. This work shows some updated calculations of the H2 cooling function based on novel collisional data which explicitly take into account the reactive pathway at low temperatures. Deviations from previous calculations are discussed

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Ross, Gerald M. "Evolution of Precambrian continental lithosphere in Western Canada: results from Lithoprobe studies in Alberta and beyond." Canadian Journal of Earth Sciences 39, no. 3 (2002): 413–37. http://dx.doi.org/10.1139/e02-012.

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The Precambrian lithosphere of western Canada was assembled into the present crustal configuration between ca. 2.01.78 Ga by plate collisions, sometimes accompanied by arc magmatism, with subsequent cooling of the lithosphere since ca. 1.7 Ga. Collisional processes inferred along preserved plate sutures include (1) subduction of oceanic lithosphere and accretion of Proterozoic arc crust to the western Rae Province; (2) marginal basin consumption and tectonic entrapment of the Hearne Province between coeval subductioncollision zones; and (3) amagmatic marginal basin closure, perhaps analogous

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Natale, G., R. J. Tuffs, C. K. Xu, et al. "The dust emission SED of X-ray emitting regions in Stephan's Quintet." Proceedings of the International Astronomical Union 7, S284 (2011): 337–41. http://dx.doi.org/10.1017/s1743921312009374.

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AbstractWe analysed the Spitzer maps of Stephan's Quintet in order to investigate the nature of the dust emission associated with the X-ray emitting regions of the large scale intergalactic shock and of the group halo. This emission can in principle be powered by dust-gas particle collisions, thus providing efficient cooling of the hot gas. However the results of our analysis suggest that the dust emission from those regions is mostly powered by photons. Nonetheless dust collisional heating could be important in determining the cooling of the IGM gas and the large scale star formation morpholo

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Scholz, T. T., and H. R. J. Walters. "Collisional rates and cooling within atomic hydrogen plasmas." Astrophysical Journal 380 (October 1991): 302. http://dx.doi.org/10.1086/170587.

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Dissertations / Theses on the topic "Collisional cooling"

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Scheffler, Tim Niclas. "Kollisionskühlung in elektrisch geladener granularer Materie - Collisional cooling in electrical charged granular media." Gerhard-Mercator-Universitaet Duisburg, 2001. http://www.ub.uni-duisburg.de/ETD-db/theses/available/duett-05222001-111655/.

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Particles in granular systems collide inelasticly and kinetic energy is dissipated in the granular system. Granular temperature measures the unordered relative motion of the particles. As a result of the inelastic collisions granular temperature decreases, this process is called collisional cooling. In most cases granular particles are charged. This thesis studies the influence of electrical charges on the collisional cooling by using computer simulations and kinetic theory. It is shown, that electrical charge modifies the dissipation rate by a Boltzmann-factor. The energy barrier of the Boltz

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Sarkozy, Laszlo C. "A Source of Translationally Cold Molecular Beams." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1218484224.

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Celik, Yusuf [Verfasser], Uwe [Gutachter] Czarnetzki, and Achim von [Gutachter] Keudell. "Non-collisional heating and cooling of electrons in low-pressure discharges / Yusuf Celik ; Gutachter: Uwe Czarnetzki, Achim von Keudell ; Fakultät für Physik und Astronomie." Bochum : Ruhr-Universität Bochum, 2012. http://d-nb.info/1204256500/34.

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Higgs, Jessica Marie. "Ion Trajectory Simulations and Design Optimization of Toroidal Ion Trap Mass Spectrometers." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6652.

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Ion traps can easily be miniaturized to become portable mass spectrometers. Trapped ions can be ejected by adjusting voltage settings of the radiofrequency (RF) signal applied to the electrodes. Several ion trap designs include the quadrupole ion trap (QIT), cylindrical ion trap (CIT), linear ion trap (LIT), rectilinear ion trap (RIT), toroidal ion trap, and cylindrical toroidal ion trap. Although toroidal ion traps are being used more widely in miniaturized mass spectrometers, there is a lack of fundamental understanding of how the toroidal electric field affects ion motion, and therefore, th

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Thomas, Angharad Mair. "Ultra-cold collisions and evaporative cooling of caesium in a magnetic trap." Thesis, University of Oxford, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403426.

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Mellish, Angela Susan, and n/a. "Experiments with Bose-Einstein condensates in optical lattices and cold collisions of ultracold atoms." University of Otago. Department of Physics, 2006. http://adt.otago.ac.nz./public/adt-NZDU20070126.100723.

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The experimental realisation of Bose-Einstein condensation in 1995 opened up a wealth of opportunities for probing quantum states of matter. The development of many tools used to manipulate such ultracold samples and the rapid progress on understanding these systems will ultimately lead to great technological advances. The work described in this thesis contributes to this worldwide effort and here we present experiments which investigate the properties and behaviour of ultracold atoms. In the first experiments presented here, we have studied features of Bose-Einstein condensates loaded into

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Au, Yat Shan. "Inelastic collisions of atomic thorium and molecular thorium monoxide with cold helium-3." Thesis, Harvard University, 2014. http://dissertations.umi.com/gsas.harvard:11318.

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We measure inelastic cross sections for atomic thorium (Th) and molecular thorium monoxide (ThO) in collisions with $^3$He at temperatures near 1 K. We determine the Zeeman relaxation cross section for Th ($^3$F$_2$) to be $\sim 2 \times 10^{-17}$~cm$^{-2}$ at 800~mK. We study electronic inelastic processes in Th ($^3$P$_0$) and find no quenching even after $10^6$ collisions at 800~mK. We measure the vibrational quenching cross section for ThO~(X,~$\nu=1$) to be $(7.9 \pm 2.7) \times 10^{-19}$~cm$^{-2}$ at 800~mK. Finally, we observe indirect evidence for ThO (X, $\nu=0$)--$^3$He van der W

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Piskorski, Julia Hege. "Cooling, Collisions and non-Sticking of Polyatomic Molecules in a Cryogenic Buffer Gas Cell." Thesis, Harvard University, 2014. http://nrs.harvard.edu/urn-3:HUL.InstRepos:13070052.

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We cool and study trans-Stilbene, Nile Red and Benzonitrile in a cryogenic (7K) cell filled with low density helium buffer gas. No molecule-helium cluster formation is observed, indicating limited atom-molecule sticking in this system. We place an upper limit of 5% on the population of clustered He-trans-Stilbene, consistent with a measured He-molecule collisional residence time of less than \(1 \mu s\). With several low energy torsional modes, trans-Stilbene is less rigid than any molecule previously buffer gas cooled into the Kelvin regime. We report cooling and gas phase visible spectroscop

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Connolly, Colin Bryant. "Inelastic Collisions of Atomic Antimony, Aluminum, Erbium and Thulium below 1 K." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10517.

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Inelastic collision processes driven by anistropic interactions are investigated below 1 K. Three distinct experiments are presented. First, for the atomic species antimony (Sb), rapid relaxation is observed in collisions with \(^4He\). We identify the relatively large spin-orbit coupling as the primary mechanism which distorts the electrostatic potential to introduce significant anisotropy to the ground \(^4S_{3/2}\) state. The collisions are too rapid for the experiment to fix a specific value, but an upper bound is determined, with the elastic-to-inelastic collision ratio \(\gamma \leq 9.1

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Hoendervanger, Lynn. "A New Metastable Helium Machine : An Investigation into the Attributes of Trapping, Cooling and Detecting Metastable Helium." Thesis, Palaiseau, Institut d'optique théorique et appliquée, 2014. http://www.theses.fr/2014IOTA0006/document.

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Cette thèse décrit le travail accompli au cours des trois dernières années sur la nouvelle expérience d’Hélium métastable de l'Institut d'Optique à Palaiseau.Le premier chapitre décrit une étude visant à améliorer à la fois l'efficacité et la précision du système de détection par galettes à micro-canaux (MCP). Nous avons fait des mesures avec des galettes recouvertes d'une couche d'or sur la face avant, obtenant un accroissement de l'efficacité de détection mais également une réduction de la précision. L'ajout d'une tension intermédiaires entre les deux galettes empilées a au contraire amélior

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Book chapters on the topic "Collisional cooling"

1

Luth, Stefan W., and Ernst Willingshofer. "Mapping of the post-collisional cooling history of the Eastern Alps." In Orogenic Processes in the Alpine Collision Zone. Birkhäuser Basel, 2008. http://dx.doi.org/10.1007/978-3-7643-9950-4_12.

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Smith, W. W., E. Babenko, R. Cote, and H. H. Michels. "On the collisional cooling of co-trapped atomic and molecular ions by ultracold atoms: Ca+ + Na and Na2 +(v*,J* ) + Na." In Coherence and Quantum Optics VIII. Springer US, 2003. http://dx.doi.org/10.1007/978-1-4419-8907-9_199.

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Fodor, László I., Axel Gerdes, István Dunkl, et al. "Miocene emplacement and rapid cooling of the Pohorije pluton at the Alpine-Pannonian-Dinaridic junction, Slovenia." In Orogenic Processes in the Alpine Collision Zone. Birkhäuser Basel, 2008. http://dx.doi.org/10.1007/978-3-7643-9950-4_15.

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Kim, Sungsoo S., Hyung Mok Lee, and Myeong-Gu Park. "Stream-Stream Collision Hydrodynamics with Radiative Cooling Around A Massive Black Hole." In Numerical Astrophysics. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4780-4_93.

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Nemova, Galina. "Homogeneous (Collisional) Broadening." In Field Guide to Laser Cooling Methods. SPIE, 2019. http://dx.doi.org/10.1117/3.2538938.ch21.

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Saβ, Anne, Stavros Christopoulos, and Martin Weitz. "Chapter 1 Laser Cooling of Dense Gases by Collisional Redistribution of Radiation." In Laser Cooling. Pan Stanford Publishing, 2016. http://dx.doi.org/10.1201/9781315364728-2.

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"Collisional Cooling in the QuadrupoleIon Trap Mass Spectrometer (QITMS)." In Practical Aspects of Trapped Ion Mass Spectrometry, Volume IV. CRC Press, 2010. http://dx.doi.org/10.1201/9781420083729-27.

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Remes, Philip, and Gary Glish. "Collisional Cooling in the Quadrupole Ion Trap Mass Spectrometer (QITMS)." In Practical Aspects of Trapped Ion Mass Spectrometry, Volume IV. CRC Press, 2010. http://dx.doi.org/10.1201/9781420083729-c17.

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Nemova, Galina. "Collisions." In Field Guide to Laser Cooling Methods. SPIE, 2019. http://dx.doi.org/10.1117/3.2538938.ch49.

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Zalasiewicz, Jan. "2. First rocks on a dead Earth." In Rocks: A Very Short Introduction. Oxford University Press, 2016. http://dx.doi.org/10.1093/actrade/9780198725190.003.0002.

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‘First rocks on a dead Earth’ describes the formation of the planet Earth from the collision of the precursor planets Tellus and Theia. The surface of the newly born Earth had a surface magma ocean. As this magma cooled, the first minerals formed. The earliest rocks on Earth date back to the Archaeon Eon. During that time, plate tectonics started up, which determined the nature of all subsequent rocks on Earth. The processes of fractional melting and impact of cooling rate on crystal sizes is explained along with the different types of igneous rocks—basalts, andesites, diorites, rhyolites, and granites—formed at mid-ocean ridges, subduction zones, and plate collision zones.

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Conference papers on the topic "Collisional cooling"

1

Bertsche, W. "Collisional Cooling of Pure Electron Plasmas Using CO2." In NON-NEUTRAL PLASMA PHYSICS V: Workshop on Non-Neutral Plasmas. AIP, 2003. http://dx.doi.org/10.1063/1.1635180.

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Vogl, U., and M. Weitz. "Laser cooling of atoms by collisional redistribution of fluorescence." In 11th European Quantum Electronics Conference (CLEO/EQEC). IEEE, 2009. http://dx.doi.org/10.1109/cleoe-eqec.2009.5192356.

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Wheelock, Adrian, David Cooke, and Nikolaos Gatsonis. "Collisional Scattering Into and Evaporative Cooling From a Potential Well." In 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. American Institute of Aeronautics and Astronautics, 2008. http://dx.doi.org/10.2514/6.2008-4640.

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Ball, Christopher D., Frank C. De Lucia, Dipesh Risal, et al. "Performance characteristics of a low-temperature cell for collisional cooling experiments." In SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, edited by Alan Fried. SPIE, 1996. http://dx.doi.org/10.1117/12.255315.

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Vogl, Ulrich, Anne Saβ, and Martin Weitz. "Laser cooling of dense rubidium-noble gas mixtures via collisional redistribution of radiation." In SPIE OPTO, edited by Richard I. Epstein and Mansoor Sheik-Bahae. SPIE, 2012. http://dx.doi.org/10.1117/12.905897.

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Holder, J. P. "Molecular dynamics simulations of collisional cooling and ordering of multiply charged ions in a Penning trap." In The CAARI 2000: Sixteenth international conference on the application of accelerators in research and industry. AIP, 2001. http://dx.doi.org/10.1063/1.1395264.

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Saß, Anne, Ralf Forge, Stavros Christopoulos, Katharina Knicker, Peter Moroshkin, and Martin Weitz. "Laser cooling of dense atomic gases by collisional redistribution of radiation and spectroscopy of molecular dimers in a dense buffer gas environment." In SPIE OPTO, edited by Richard I. Epstein, Denis V. Seletskiy, and Mansoor Sheik-Bahae. SPIE, 2014. http://dx.doi.org/10.1117/12.2035630.

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Hutzler, Nicholas, and John Doyle. "PHYSICS WITH COLD MOLECULES USING BUFFER GAS COOLING: PRECISION MEASUREMENT, COLLISIONS, AND LASER COOLING." In 69th International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2014. http://dx.doi.org/10.15278/isms.2014.rh11.

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Strongrich, Andrew D., and Alina A. Alexeenko. "Convective Cooling in the Transitional Rarefied Flow Regime." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-38727.

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Convective heat transfer in the transitional rarefied flow regime is evaluated both numerically using the ES-BGK collision model and experimentally for freely suspended silicon beams. Results are compared to both empirically derived continuum correlations as well as analytical free-molecule solutions, demonstrating a monotonic nonlinear transition between the two regimes. Both horizontal and vertical orientations were explored in an effort to evaluate the potential influence of buoyancy on heat transfer performance. Results demonstrate that such effects are largely insignificant for transition

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Smith, A. M., and K. Burnett. "The effect of long-range collisions between atoms on laser cooling." In Spectral line shapes. AIP, 1990. http://dx.doi.org/10.1063/1.39964.

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Reports on the topic "Collisional cooling"

1

Roberts, Jacob L. Non-Evaporative Cooling via Inelastic Collisions in an Optical Trap. Defense Technical Information Center, 2013. http://dx.doi.org/10.21236/ada582737.

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