Zobrazeno 1 - 10
of 23
pro vyhledávání: '"R. Guckert"'
Autor:
Gregory L. Boylan, Major Eric S. Tollefson, Lieutenant Colonel Michael J. Kwinn, Ross R. Guckert
Publikováno v:
Systems Engineering. 9:199-212
Publikováno v:
Hyperfine Interactions. 127:387-393
We report on the trapping of radioactive atoms for a variety of nuclear, atomic, and applied physics investigations. To date we have trapped 5 different radioisotopes of rubidium and cesium (82–84Rb+135,137Cs) using a magneto-optical trap (MOT) cou
Publikováno v:
Physical Review A. 60:4730-4733
We report on the hyperfine-structure measurements of the 5P{sub 1/2} and 5P{sub 3/2} states as well as the isotope shift of the D{sub 1} transition of radioactive {sup 82}Rb (t{sub 1/2}=75 s) atoms trapped in a magneto-optical trap. The systematic ef
Autor:
A. Hime, Dale Tupa, David J. Vieira, R. Guckert, X. Zhao, Hermann Wollnik, S. G. Crane, W. A. Taylor
Publikováno v:
Physical Review A. 58:R1637-R1640
We report the successful trapping of $6\ifmmode\times\else\texttimes\fi{}{10}^{6}$ ${}^{82}\mathrm{Rb}$ ${(t}_{1/2}=75\mathrm{s})$ atoms with a trap lifetime of $\ensuremath{\sim}30\mathrm{s}$ in a magneto-optical trap that is coupled to an off-line
Autor:
Joseph R. Guckert, Robert W. Carr
Publikováno v:
Laser Chemistry. 10:185-195
The TEA-CO2 laser induced reaction of trans-l,2-dichloroethylene (TDCE) was investigated at 925 cm-1. The laser radiation was focused to yield beam waist fluences of approximately 125 J cm-2. The major reaction product was cis-1, 2-dichloroethylene (
Autor:
Joseph R. Guckert, Robert W. Carr
Publikováno v:
Laser Chemistry. 10:227-238
The infrared multiple photon trans → cis isomerization of crotonitrile was studied over the pressure range 0.02 torr to 10 torr at fluences of approximately 4J/cm2 using collimated TEA CO2 laser radiation at 942 cm-1. Only minor quantifies of fragm
Autor:
R. Guckert, Xinxin Zhao, Dale Tupa, D. W. Preston, V.D. Sandberg, David J. Vieira, Hermann Wollnik, E.P. Chamberlin
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 126:383-385
The efficient coupling of a magneto-optical trap to a mass separator is being developed to undertake high-precision electroweak interaction measurements in a series of radioisotopes. The use of ion implantation and subsequent heated-foil release is b
Autor:
S G, Crane, S J, Brice, A, Goldschmidt, R, Guckert, A, Hime, J J, Kitten, D J, Vieira, X, Zhao
Publikováno v:
Physical review letters. 86(14)
Laser cooling and atomic trapping techniques have been employed to confine polarized 82Rb atoms ( T1/2 = 75 s) in a magnetic time-orbiting-potential (TOP) trap. We have observed the parity-violating correlation between the emitted positron momentum a
Autor:
R. Guckert, Dale Tupa, S. J. Brice, X. Zhao, S. G. Crane, David J. Vieira, A. Goldschmidt, Andrew Hime
Publikováno v:
AIP Conference Proceedings.
We report on the Los Alamos effort to measure the [beta]-nuclear spin correlation function in the Gamow-Teller decay of polarized [sup 82]Rb atoms confined in a time orbiting potential (TOP) magnetic trap as a means of probing the origin of parity vi