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We have designed and implemented a straightforward method to deterministically measure the temperature of the selected segment of a cold atom ensemble, and we have also developed an upgrade in the form of nondestructive thermometry. The…

Atomic Physics · Physics 2020-08-19 Xin Wang , Yuan Sun , Hua-Dong Cheng , Jin-Yin Wan , Yan-Ling Meng , Ling Xiao , Liang Liu

Enhanced radiative cooling of ion beams in storage rings and Robinson's damping criterion are discussed.

Accelerator Physics · Physics 2007-05-23 E. G. Bessonov

The MuCool R&D program is described. The aim of MuCool is to develop all key pieces of hardware required for ionization cooling of a muon beam. This effort will lead to a more detailed understanding of the construction and operating costs…

Accelerator Physics · Physics 2019-08-14 Daniel M. Kaplan

We describe a simple approach to the problem of incorporating the response time of an atom or ion being Doppler-cooled into the theory of the cooling process. The system being cooled does not in general respond instantly to the changing…

Atomic Physics · Physics 2018-09-28 H. Janacek , A. M. Steane , D. M. Lucas , D. N. Stacey

Sympathetic laser cooling of ions stored within a linear-geometry, radio frequency, electric-quadrupole trap has been investigated using computational and theoretical techniques. The simulation, which allows 5 sample ions to interact with…

Atomic Physics · Physics 2009-11-07 T. J. Harmon , N. Moazzen-Ahmadi , R. I. Thompson

Cooling methods are discussed in reference to the electron-positron, ion and muon beams.

Accelerator Physics · Physics 2007-05-23 E. G. Bessonov

The structure of the hot downstream region below a radiative accretion shock, such as that of an accreting compact object, may oscillate due to a global thermal instability. The oscillatory behaviour depends on the functional forms of the…

Astrophysics · Physics 2009-10-31 Curtis J. Saxton , Kinwah Wu

In this publication we collected descriptions of some installations with liquid metals which could be used for high-energy colliders, ILC particularly, for the purposes of targeting, collimation, cooling, collection of secondary particles…

Accelerator Physics · Physics 2015-11-12 Alexander Mikhailichenko

We propose in this article a method to generate radiative coolers which are reflective in the solar spectrum and emissive in the transparency window of the atmosphere (8-13 $\mu$m). We choose an approach combining thermal control capacity…

Applied Physics · Physics 2018-02-07 Armande Hervé , Jeremie Drevillon , Younes Ezzahri , Karl Joulain

Currently laser cooling schemes are fundamentally based on the weak coupling regime. This requirement sets the trap frequency as an upper bound to the cooling rate. In this work we present a numerical study that shows the feasibility of…

Quantum Physics · Physics 2015-05-18 S. Machnes , M. B. Plenio , B. Reznik , A. M. Steane , A. Retzker

Since the first proof-of-concept demonstrations of photoluminescence-based optical refrigeration, solid-state laser cooling has developed into a credible competitor to conventional cryogenic technologies. Solid-state laser cooling continues…

This paper firstly presents the concept of using dual laser beam to irradiate the photovoltaic cell, so as to investigate the temperature dependency of the efficiency of long distance energy transmission. Next, the model on the multiple…

Materials Science · Physics 2015-02-03 Yu-Chen Yuan , Chen-Wu Wu

If fusion power reactors are to be feasible, it will still be necessary to convert the energy of the nuclear reaction into usable form. The heat produced will be removed from the reactor core by a primary coolant, which might be water,…

Physics and Society · Physics 2014-01-20 M. Kovari , C. Harrington , I. Jenkins , C. Kiely

Parallel to advances in laser cooling of atoms and ions in dilute gas phase, which has progressed immensely, resulting in physics Nobel prizes in 1997 and 2001, major progress has recently been made in laser cooling of solids. I compare the…

Optics · Physics 2015-05-13 Galina Nemova

We demonstrate an ultraviolet diode laser system for cooling of trapped ytterbium ions. The laser power and linewidth are comparable to previous systems based on resonant frequency doubling, but the system is simpler, more robust, and less…

Atomic Physics · Physics 2011-01-25 D. Kielpinski , M. Cetina , J. A. Cox , F. X. Kaertner

The model and algorithm for the cooling of the magnetized neutron stars are presented. The cooling evolution described by system of parabolic partial differential equations with non-linear coefficients is solved using Alternating Direction…

Computational Physics · Physics 2016-03-07 H. Grigorian , A. Ayriyan , E. Chubarian , A. Piloyan , M. Rafayelyan

Thermoelectric devices convert temperature gradients into electrical power and vice versa, thus enabling energy scavenging from waste heat, sensing and cooling. Yet, many of these attractive applications are hindered by the limited…

Materials Science · Physics 2019-02-14 Davide Donadio

An analytical expression is received for the effective interaction potential of a fast charged particle with the ionic crystal CsCl near the direction of axis <100> as a function of the temperature of the medium. A possibility of positron…

Accelerator Physics · Physics 2020-01-07 E. A. Ayryan , A. S. Gevorkyan , M. Hnatic , K. B. Oganesyan , P. Kopcansky , Yu. V. Rostovtsev , M. Timko

A hybrid positron source, consisting of a crystal as electron to photon converter and a amorphous target, is a candidate to relax heat load problem for high intensity positron sources. In this article we report status of experimental study…

Accelerator Physics · Physics 2012-03-07 Tohru Takahashi

The efficiency of cavity sideband cooling of trapped molecules is theoretically investigated for the case where the IR transition between two rovibrational states is used as a cycling transition. The molecules are assumed to be trapped…

Quantum Physics · Physics 2011-11-30 Markus Kowalewski , Giovanna Morigi , Pepijn W. H. Pinkse , Regina de Vivie-Riedle