LAMELLAE IN INDIVIDUAL OLIVINE GRAINS IN SHOCK-MELT VEINS OF YAMATO 791384 L6 CHONDRITE. M. Miyahara, E. Ohtani, M. Kimura, A. El Goresy, S. Ozawa and T. Nagase, Graduate School of Science, Tohoku University, Sendai, 980-8758, Japan, Faculty of Science, Ibaraki University, Mito, 310-8512, Japan, Bayerisches Geoinstitut, Universität Bayreuth, 95447 Bayreuth, Germany, The Tohoku University Museum...

Let β > 1 and let m > β be an integer. Each x ∈ Iβ := [0, m−1 β−1 ] can be represented in the form x = ∞ ∑ k=1 εkβ , where εk ∈ {0, 1, . . . ,m − 1} for all k (a β-expansion of x). It is known that a.e. x ∈ Iβ has a continuum of distinct β-expansions. In this paper we prove that if β is a Pisot number, then for a.e. x, this continuum has one and the same growth rate. We also link this rate to t...

The suitability of a natural diamond detector with a special contact system for the measurement of relative dose distributions in selected radiotherapy applications was studied. The performance of the diamond detector was analysed by comparison with measurements using an ionization chamber and a silicon diode detector. The good stability, high response and good spatial resolution of the diamond...

It is well known that the emission of coherent synchrotron radiation (CSR) in a dipole magnets leads to increase in beam energy spread and emittance. At the Brookhaven National Laboratory Accelerator Test Facility (ATF) we study the suppression of CSR emission affect on electron beam in a dipole magnet by two vertically spaced conducting plates. The gap between the plates is controlled by four ...

A resonant instability of kinetic Alfvén waves (KAWs) driven by ion beam is discussed through a theoretical model encompassing Maxwellian background ions and non-Maxwellian κ-electrons. The velocity alone as source able to excite the KAWs up significant growth. parameter κ impedes growth restricting wave unstable region. effects other plasma parameters such propagation angle, temperature specie...

Free vibration characteristics of continuous grading fiber orientation (CGFO) beams resting on variable Winkler and two-parameter elastic foundations have been studied. The beam is under different boundary conditions and assumed to have arbitrary variations of fiber orientation in the thickness direction. The governing differential equations for beam vibration are being solved using Generalized...

This paper describes a procedure to set the phase and amplitude of the RF fields in the Spallation Neutron Source (SNS) linac’s superconducting cavities. The linac uses superconducting cavities to accelerate the H ion beam from the normal conducting linac at 185 MeV to a final energy of ~1 GeV. There are two types of cavities in the linac, 33 cavities with a geometric beta of 0.61 and 48 caviti...

Abstract A system for collecting the scintillation light produced by capture of ultra-cold neutrons (UCN) on polarized 3 He is discussed and results from simulations its performance are presented. This will be implemented in nEDM@SNS, experiment searching neutron electric dipole moment (nEDM) at Spallation Neutron Source (SNS) Oak Ridge National Laboratory. Simulation show that collection detec...

in this paper, the stability of a functionally graded magneto-electro-elastic (fg-mee) micro-beam under actuation of electrostatic pressure is studied. for this purpose euler-bernoulli beam theory and constitutive relations for magneto-electro-elastic (mee) materials have been used. we have supposed that material properties vary exponentially along the thickness direction of the micro-beam. gov...