Absolute angular positioning in ultrahigh vacuum

Schief, Hansjorg; Marsico, Vittorio; Kern, Klaus
May 1996
Review of Scientific Instruments;May96, Vol. 67 Issue 5, p2026
Academic Journal
Discusses the modification and adaptation of commercially available angular resolvers, routinely used in machine tools and robotics, to be used under ultrahigh-vacuum. Electro-optical position measuring technique; Mechanical design; Scattering geometry of the high-resolution helium-reflectivity measurements.


Related Articles

  • Torque-based aerial posture control of a two-link acrobat robot. Hattori, K.; Yamaura, H.; Ono, K. // Proceedings of the Institution of Mechanical Engineers -- Part I;Oct2004, Vol. 218 Issue 7, p595 

    This paper deals with an aerial posture control problem of a two-link acrobat robot with non-zero initial angular momentum. Firstly, a strict feedback system is derived from the equations of motion and the law of conservation of angular momentum of a two-link aerial acrobat robot. The torque...

  • Erratum: “Gyrokinetic theory and simulation of angular momentum transport” [Phys. Plasmas 14, 122507 (2007)]. Waltz, R. E.; Staebler, G. M.; Candy, J.; Hinton, F. L. // Physics of Plasmas;Jul2009, Vol. 16 Issue 7, p079902 

    A correction to the article "Gyrokinetic Theory and Simulation of Angular Momentum Transport," is presented.

  • Erratum: “The neoclassical angular momentum flux in the large aspect ratio limit” [Phys. Plasmas 12, 092513 (2005)]. Wong, S. K.; Chan, V. S. // Physics of Plasmas;Aug2009, Vol. 16 Issue 8, p089901 

    A correction to the article "The neoclassical angular momentum flux in the large aspect ratio limit," published in the August 15, 2009 issue of the journal is presented.

  • Robotic observations of the most eccentric spectroscopic binary in the sky. Strassmeier, K. G.; Weber, M.; Granzer, T. // Astronomy & Astrophysics / Astronomie et Astrophysique;Dec2013, Vol. 559, p1 

    Context. The visual A component of the Gliese 586AB system is a double-lined spectroscopic binary consisting of two cool stars with the exceptional orbital eccentricity of 0.976. Such an extremely eccentric system may be important for our understanding of low-mass binary formation. Aims. Precise...

  • HO[sub 2] rovibrational eigenvalue studies for nonzero angular momentum. Wu, Xudong T.; Hayes, Edward F. // Journal of Chemical Physics;8/22/1997, Vol. 107 Issue 8, p2705 

    Focuses on an efficient parallel algorithm for determining all bound rovibrational energy levels for the hydrogen dioxide molecule for nonzero angular momentum values. Eigenvalues of the polyatomic Hamiltonian; Direct product discrete variable representation (DVR) basis; Implicitly restarted...

  • Reply to a comment on: Angular momentum relaxation in binary collisions. Comparison of cross sections. Jameson, Cynthia J.; Jameson, A. Keith // Journal of Chemical Physics;6/1/1991, Vol. 94 Issue 11, p7565 

    Presents a reply to comments on the study which focused on angular momentum relaxation in binary collisions. Description of a model of rough hard spheres which provide a correlation time for the angular velocity; Assumption that the characteristics of the projectile are not as important as the...

  • Photofragment angular momentum distributions in the molecular frame: Determination and... Rakitzis, T. Peter; Zare, Richard N. // Journal of Chemical Physics;2/15/1999, Vol. 110 Issue 7, p3341 

    Presents a procedure for the measurement of the photofragment angular momentum distribution in terms of polarization parameters in the molecular frame. Monoenergetic photofragment velocity distribution resulting from photolysis of stationary molecules; Detection probability of an atom or...

  • Symmetry and structure of rotating H[sup +][sub 3]. Kozin, I.N.; Roberts, R.M.; Tennyson, J. // Journal of Chemical Physics;7/1/1999, Vol. 111 Issue 1, p140 

    Presents a global study of how the relative equilibria of the H3+ ion change as angular momentum increases. Relative equilibrium as a classical trajectory for which the molecule rotates about a stationary axis without changing its axis; Confirmation of previous results that the geometry of...

  • On the problem of rotational-state-dependent molecule-surface interaction: Relaxation, accommodation and trapping at low J. Pankov, A. Yu.; Krylov, S. Yu.; van Duijn, E. J.; van Dujin, E.J.; Hermans, L. J. F.; Hermans, L.J.F. // Journal of Chemical Physics;5/15/2000, Vol. 112 Issue 19 

    In the framework of a unified kinetic theory of particle-surface interactions, dependences of the relaxation, accommodation, and trapping of molecules on their angular momentum J are discussed. One of the basic parameters of the theory, the free flight time through the interaction region, is...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics