Zobrazeno 1 - 10
of 40
pro vyhledávání: '"G. K. Rochester"'
Publikováno v:
International Journal of Modern Physics D. 17:993-1003
We present an overview of charge management for LISA, including a review of the problems caused by test mass charging and development of the LISA Pathfinder charge management device.
Autor:
D. C. R. Davidge, A. Bewick, G. K. Rochester, W. G. Jones, M. K. Joshi, J. J. Quenby, Rodney Walker, Henrique Araujo, I. Liubarsky, D. Akimov, J. V. Dawson, D. Shaul, T. J. Sumner, A. S. Howard, V. N. Lebedenko
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 545:690-698
Scintillation produced in liquid xenon by alpha particles and gamma rays has been studied as a function of applied electric field. For back scattered gamma rays with energy of about 200 keV, the number of scintillation photons was found to decrease b
Publikováno v:
Classical and Quantum Gravity. 22:S297-S309
This paper concerns the effects of the build-up of electrical charge on the LISA test masses. Charge accumulates on the isolated test masses due to the bombardment of the spacecraft by galactic cosmic rays and solar particles. This will result in for
Publikováno v:
International Journal of Modern Physics D. 14:51-71
The success of LISA is dependent on the precision with which the test masses, the interferometer mirrors, can maintain pure geodesic motion. Their accumulation of charge from cosmic rays and solar wind particles can give rise to spurious Lorentz and
Autor:
Henrique Araujo, D. Shaul, T. J. Sumner, G. K. Rochester, Chris Lee, A. S. Howard, Peter Wass, D. C. R. Davidge
Publikováno v:
Classical and Quantum Gravity. 21:S597-S602
The next generation of gravitational experiments in space is likely to use completely isolated proof-masses. For example, LISA uses proof-masses as mirrors in interferometers for gravitational wave astronomy (Bender et al 1998 Pre-phase A report MPG-
Publikováno v:
Classical and Quantum Gravity. 21:S647-S651
Electrical charges will build up on the LISA test masses due to particle radiation from cosmic rays and from the Sun. This charging can lead to spurious forces both through Lorentz and Coulomb interactions. These effects can give rise not only to acc
Publikováno v:
Measurement Science and Technology. 10:508-513
We present details of the design and construction of a new superconducting, magnetically suspended torsion balance in which the levitation coil and the lift surface of the float lie on the surfaces of concentric spheres. We compare results from calcu
Publikováno v:
Classical and Quantum Gravity. 13:A107-A112
Calculations are presented which define the optimum geometry for the spin-coupling experiment (SCE) on STEP. It is shown that the spin source must be composed of two sections in which spin-polarized electrons make different contributions to the net m
Autor:
Eckhard Kendziorra, R. K. Sood, G. Woods, D.G. Grey, Rüdiger Staubert, J. Panettieri, J. A. Hoffmann, R. K. Manchanda, G. K. Rochester
Publikováno v:
Publications of the Astronomical Society of Australia. 13:156-161
Following a successful program to investigate the physics of ultra-high-pressure proportional counters, a counter array has been developed for hard X-ray astronomy. A parallel investigation has evaluated the performance of a large-area phoswich scint
Autor:
D. Wonnacott, G. Willoughby, Barry Kellett, G. E. Bromage, D. Doanoghue, J. J. Quenby, L. Matthews, S. D. Sidher, T. J. Sumner, G. K. Rochester
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 266:757-760
We announce the detection of flaring activity from a stellar source not previously known to be coronally active. The source was detected with the ROSAT Wide Field Camera during the All Sky Survey stage of the satellite mission. A long-duration flare