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- Ralph R. Martin, P. C. Stephenson
- Computer-Aided Design
- 1990

The basic problem which this paper addresses is the following: given an arbitrary three-dimensional object, which moves along an arbitrary path (possibly rotating as it does so), to compute theâ€¦ (More)

A family of algorithms is presented for solving problems related to the one of whether a given object fits inside a rectangular box, based on the use of Minkowski Sums and convex hulls. We presentâ€¦ (More)

- Ralph R. Martin, P. C. Stephenson
- IMA Conference on the Mathematics of Surfaces
- 1988

- John H. Strange, Sarah G. Allen, P. C. Stephenson, Niurguyana P Matveeva
- Magnetic resonance imaging
- 1996

The phase equilibria of water within porous silica has been studied by proton and deuteron magnetic resonance. Proton signal amplitude as a function of filling factor was measured. These protonsâ€¦ (More)

- P. C. Stephenson
- Journal of the Optical Society of America. Aâ€¦
- 2014

A recurrence relation for the first-order Cartesian derivatives of the Zernike polynomials is derived. This relation is used with the Clenshaw method to determine an efficient method for calculatingâ€¦ (More)

- Robin F. C. Farrow, Jon Headspith, +8 authors Kenneth Buxton
- Journal of synchrotron radiation
- 1998

Following the completion of the collaborative project between CLRC Daresbury Laboratory and EG&G ORTEC to develop the world's first 30-element HPGe detector for fluorescence XAFS, it has now beenâ€¦ (More)

- P. C. Stephenson
- Journal of the Optical Society of America. Aâ€¦
- 2009

Aberrations of optical systems are usually analyzed by decomposing the wavefront aberration at a pupil into a series of terms. The Seidel and Zernike series are two common examples, each with its ownâ€¦ (More)

- Katie Ackroyd, John W. M. Campbell, +12 authors Emmanuel Pantos
- Journal of synchrotron radiation
- 1994

Computing provision is of major concern to synchrotron radiation researchers. An overview is presented of the computing facilities for synchrotron radiation work at the Synchrotron Radiation Source,â€¦ (More)

- Robert Bilsborrow, Paulo A Atkinson, Neil Bliss, Andrew J. Dent, Barry R. Dobson, P. C. Stephenson
- Journal of synchrotron radiation
- 2006

A scanning dynamically focusing sagittal X-ray monochromator accepting 7 mrad of the fan from a 6 T wiggler is in routine use on beamline 16.5 (ultra-dilute spectroscopy) of the SRS at CCLRCâ€¦ (More)

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