Cooling and heating of crystalline ion beams

@article{citeulike:2443282, abstract = {The crystallization of ion beams has recently been established in the rf quadrupole storage ring PALLAS (PAul Laser CooLing Acceleration System) for laser-cooled 24Mg+ ion beams at an energy of about 1 eV. Yet, unexpectedly sharp constraints had to be met concerning the confinement strength and the longitudinal laser cooling rate. In this paper, related and up to now unseen heating mechanisms are pinpointed for crystalline beams. The weak but inevitable diffusive transverse heating associated with the laser cooling process itself is investigated, possibly allowing the future measurement of the latent heat of the ion crystal. As a function of the beam velocity, the influence of bending shear on the attainability of larger crystalline structures is presented. Finally, rf heating of crystalline beams of different structure is studied for discontinuous cooling.}, author = {Schramm, U. and Schatz, T. and Bussmann, M. and Habs, D. }, citeulike-article-id = {2443282}, doi = {http://dx.doi.org/10.1088/0953-4075/36/3/314}, journal = {Journal of Physics B: Atomic, Molecular and Optical Physics}, keywords = {beam, bending, cooling, crystalline, heat, heating, ion, laser, latent, pallas, paul, phase, ring, shear, stability, storage, transition, trap}, number = {3}, pages = {561--571}, posted-at = {2008-02-28 12:44:16}, priority = {0}, title = {Cooling and heating of crystalline ion beams}, url = {http://dx.doi.org/10.1088/0953-4075/36/3/314}, volume = {36}, year = {2003} }

TY - JOUR ID - citeulike:2443282 L3 - citeulike-article-id:2443282 TI - Cooling and heating of crystalline ion beams JF - Journal of Physics B: Atomic, Molecular and Optical Physics VL - 36 IS - 3 SP - 561 EP - 571 N2 - The crystallization of ion beams has recently been established in the rf quadrupole storage ring PALLAS (PAul Laser CooLing Acceleration System) for laser-cooled 24Mg+ ion beams at an energy of about 1 eV. Yet, unexpectedly sharp constraints had to be met concerning the confinement strength and the longitudinal laser cooling rate. In this paper, related and up to now unseen heating mechanisms are pinpointed for crystalline beams. The weak but inevitable diffusive transverse heating associated with the laser cooling process itself is investigated, possibly allowing the future measurement of the latent heat of the ion crystal. As a function of the beam velocity, the influence of bending shear on the attainability of larger crystalline structures is presented. Finally, rf heating of crystalline beams of different structure is studied for discontinuous cooling. KW - beam KW - bending KW - cooling KW - crystalline KW - heat KW - heating KW - ion KW - laser KW - latent KW - pallas KW - paul KW - phase KW - ring KW - shear KW - stability KW - storage KW - transition KW - trap AU - Schramm, U AU - Schatz, T AU - Bussmann, M AU - Habs, D PY - 2003/// UR - http://dx.doi.org/10.1088/0953-4075/36/3/314 ER -