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pro vyhledávání: '"B. Jaduszliwer"'
Autor:
B. Jaduszliwer, W. Buell
Publikováno v:
Proceedings of the 1999 Joint Meeting of the European Frequency and Time Forum and the IEEE International Frequency Control Symposium (Cat. No.99CH36313).
We present a novel cesium beam physics package, which uses optical techniques to combine the high signal-to-noise ratios achievable by optical pumping and beam brightening with the narrow linewidth allowed by a slow atomic beam. Our design can be rea
Autor:
B. Jaduszliwer
Publikováno v:
Proceedings of the 43rd Annual Symposium on Frequency Control.
Accurate calculations are performed of atomic trajectories in conventional cesium beam tubes (CBTs) using dispersive, two-wire field magnets and also in a novel configuration using two orthogonal one-dimensional focusing dipoles of the type described
Autor:
B. Jaduszliwer
Publikováno v:
Proceedings of 1996 IEEE International Frequency Control Symposium.
A cesium atomic clock computer model could play an important role in diagnosing clock anomalies or failures on board GPS satellites. It could also be used as a design and quality control tool. We describe an ab initio model of the cesium clock physic
Autor:
J.P. Hurrell, B. Jaduszliwer
Publikováno v:
Proceedings of IEEE 48th Annual Symposium on Frequency Control.
The cesium frequency standards (CFS) to be flown on board GPS Block W satellites will carry a second harmonic level monitor (SHLM), the output of which will be the only telemetry datum available on the CFS health The SHLM replaces the beam current mo
Autor:
B. Jaduszliwer, Y.C. Chan
Publikováno v:
44th Annual Symposium on Frequency Control.
A study of velocity distributions of hydrogen atoms effusing out of radio frequency (RF) discharge is presented. The velocity distributions of hydrogen atoms effusing out of an RF discharge dissociator having a geometry and operating parameters resem
Autor:
B. Jaduszliwer, W.F. Buell
Publikováno v:
Proceedings of the 1998 IEEE International Frequency Control Symposium (Cat. No.98CH36165).
We present a new approach to timekeeping on board spacecraft which relies on a relatively large (/spl cong/10) number of miniature commercial off-the-shelf (COTS) rubidium atomic clocks, of which a small number (/spl cong/4) operate simultaneously to
Autor:
B. Jaduszliwer
Publikováno v:
Proceedings of International Frequency Control Symposium.
We are developing a cesium atomic clock computer model to be used for anomaly diagnostics. It could also be used as a clock design and quality-control tool. Clock components and/or functions are modeled by program units that run independently and com
Publikováno v:
Proceedings of International Frequency Control Symposium.
The definition of the temperature sensitivity of a clock implicitly assumes thermal equilibrium. Test protocols consistent with that definition require long enough soaks at each nominal measurement temperature to enable thermal stabilization prior to
Autor:
B. Jaduszliwer
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 37(3)
The author presents accurate calculations of atomic trajectories in conventional CBTs (cesium-beam tubes) using dispersive two-wire field magnets, and also in a novel configuration using two orthogonal one-dimensional focusing dipoles of the type des
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