PHYS01200804001 Sohrab Abbas - Homi Bhabha National Institute

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REFERENCES [1] H. Rauch and S. Werner, Neutron Interferometry: Lessons in Experimental Quantum Mechanics, Oxford: Oxford University Press (2000). [2] V. F. Sears, Neutron Optics, Oxford: Oxford University Press (1989). [3] J. Bryne, Neutrons, Nuclei and Matter, Bristol: <strong>Institute</strong> of Physics Publishing (1994); Rep. Prog. Phys., 45 (1982)115. [4] A. G. Wagh and V. C. Rakhecha, Prog. Part. Nucl. Phys., 37 (1996) 485. [5] A. G. Klein and S. A. Werner, Rep. Prog. Phys., 46 (1983) 259. [6] L. de Broglie, Ann. de Phys., 3 (1925) 22. [7] C. Davisson and L. H. Germer, Phys. Rev., 30(6) (1927) 705. [8] G. P. Thomson and A. Reid, Nature, 119 (1927) 890. [9] W. L. Bragg, Proc. Cambridge Phil. Soc., 17 (1913) 43. [10] J. Chadwick, Nature, 129 (1932) 312; Proc. Roy. Soc. London, A 136 (1932) 692. [11] D. P. Mitchell and P. N. Powers, Phys. Rev., 50(5) (1936) 486. [12] S. Glasstone and A. Sesonske, Nuclear Reactor Engineering, Van Nostrand (1963). [13] Development opportunities for small and medium scale accelerator driven neutron sources, Technical Meeting Report (Vienna), pp. 18, IAEA-TECDOC-1439 (May 2004). [14] K. Clausen, PRAMANA- journal of Physics, 71 (2008) 623. [15] C. G. Windsor, Pulsed Neutron Scattering, Taylor & Francis, London (1981). [16] http:///www.helmholtz-berlin.de.; http:///www.frm2.tu-muenchen.de. [17] “Rapport De Surete Du Reacteur A Haut Flux", Vol. 4, Institut Max von Laue – Paul Langevin, (Grenoble 1971); http:///www.ill.eu. [18] <strong>National</strong> Facility for Neutron Beam Research, Eds. D. Sen, V. K. Aswal, R. Mukhopdhayay 124
and S. L. Chaplot, BARC Technical Brochure (BARC, Mumbai 2008). [19] J. S. Nico et al., J. Res. Natl. Inst. Stand. Technol, 110 (2005) 137. [20] P. N. Seo et al., Nucl. Instrum. Meth. A, 517 (2004) 285. [21] http://www.sns.gov. [22] http://www.j-parc.jp. [23] J. M. Pendlebury, Ann. Rev. Nucl. Part. Sci., 43 (1993) 687; H. Abele, Prog. Part. Nucl. Phys., 60 (2008) 1. [24] G. E. Bacon, Neutron Diffraction, Monographs on the Physics and Chemistry of Materials, Clarendon Press, Oxford (1955). [25] G. E. Bacon, Neutron Diffraction, Clarendon Press, Oxford (1975) 3rd edn. [26] S. W. Lovesey, Theory of Neutron Scattering from Condensed Matter, Volume 1: Nuclear Scattering, Clarendon Press, Oxford (1986). [27] J. S. Higgins, H. C. Benoit, Polymers and Neutron Scattering, Oxford Science Publications, New York (1994). [28] E. Fermi 1934 Collected papers Vol 1, ed E Segre, Chicago: University of Chicago Press (1962) 757, Ricerca Sci. 7 (1936) 13. [29] O. Halpern and M. H. Johnson, Phys. Rev., 55 (1939) 898. [30] O. Halpern and T. Holstein, Phys. Rev., 59 (1941) 960. [31] O. Halpern, M. Hamermesh and M. H. Johnson, Phys. Rev., 59 (1941) 981. [32] M. Hamermesh, Phys. Rev., 61 (1942) 17. [33] M. Lax, Rev. Mod. Phys., 23 (1951) 287. [34] M. L. Goldberger and F. Seitz, Phys. Rev., 71(5) (1947) 294. [35] E. Fermi and L. Marshall, Phys. Rev., 71(10) (1947) 666. 125
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Studying neutron dynamical diffract
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DECLARATION I, hereby declare that
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ACKNOWLEDGEMENTS I sincerely, thank
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Fig.10 Boundary conditions on wave
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Fig.28 Theoretical curves for Si {1
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sample. Least-squares fit to the sa
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Fig.62 Interference contrast and av
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3.4 Experimental 49 3.5 Results and
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SYNOPSIS The present thesis aims to
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analytic expressions for intensity
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Research A, 634 (2011) S41. [9] S.
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spallation sources yield peak neutr
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SU(2) phase, and separation of geom
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[33-34,48]. The bi-refracting natur
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application of the dynamical theory
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I. One of the major disadvantages o
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nuclear physics very important as i
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potential for most nuclei in spite
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Due to the rapid strides made latel
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for a positive value of b c i.e. fo
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k b k O H . ni sin( B S) . (18)
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factor exp(-W). The centre, θ C ,
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exploiting multiple successive iden
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We shall confine our discussion hen
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The depth Z is measured from the in
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wings (large-y regions). The freque
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expressed as T(y, t )R(y, t )R(
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studies. With such beams, the and
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CHAPTER 3 Neutron forward diffracti
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eing the separation of points M and
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3.1 Neutron forward diffraction Con
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excited by the incident wave (Fig.1
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Therefore, the forward diffracted i
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Fig.15 Calculated cr and I O for a
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(1 I ) D tan b . ID cot( B S)
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Fig.18 Experimental layout to measu
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Fig.20 Bragg reflection intensity f
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fraction I O through the Bragg pris
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Fig.22 Experimental (points) and th
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Table 2: Observed deflection sensit
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total reflectivity domain. These ar
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Here the term C() accounts for the
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Fig.28 Theoretical curves for Si {1
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I H (θ H ) peaks of 0.18 height an
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other with a compression factor lim
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an overall compression factor of 14
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4.3 Experimental 4.3.1 Bragg prism
Page 96 and 97: 4.3.2 Experiment The experiment was
Page 98 and 99: Fig.38 Bragg reflection rocking cur
Page 100 and 101: 4.4 Applications of novel SUSANS se
Page 102 and 103: Fig.42 First Q ~ 10 -6 Å -1 SUSANS
Page 104 and 105: 2 (1) -(δk i .Δ i ) /2 Γ (Δ) =
Page 106 and 107: 2 I( ) A( ) . (76) The least squa
Page 108 and 109: Fig.46 Analyser rocking curve for a
Page 110 and 111: This instrument was also employed t
Page 112 and 113: Fig.48 Theoretical flat-topped angu
Page 114 and 115: difference between the two neutron
Page 116 and 117: Fig.52 Phase dispersion in a 26.5 m
Page 118 and 119: the beam and remains visible up to
Page 120 and 121: cos bc 4NDd1 1 2cot 2 III 2 2
Page 122 and 123: yield about an order of magnitude r
Page 124 and 125: The refractive index, n = (1-Nb c
Page 126 and 127: with a white, and hence high-intens
Page 128 and 129: proposed dual sample. The dual samp
Page 130 and 131: The experiment was performed with =
Page 132 and 133: Fig.59 Typical interferograms for p
Page 134 and 135: Fig.63 Path I, II and I-II phases d
Page 136 and 137: Fig.65 Average intensity with the s
Page 138 and 139: Fig.69 New metrological mapping of
Page 140 and 141: Si at 26.2 o C, applying a correcti
Page 142 and 143: selected asymmetric Bragg prism may
Page 144 and 145: III. High precision determination o
Page 148 and 149: [36] J. S. Nico and W. M. Snow, Ann
Page 150 and 151: [67] V. F. Sears, Can. J. Phys., 56
Page 152 and 153: [97] A. Cabello, S. Filipp, H. Rauc
Page 154 and 155: [127] A. Ioffe, D. L. Jacobson, M.
Page 156: 2009, (Grenoble, France, 2010) 3-15
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PHYS01200804001 Sohrab Abbas - Homi Bhabha National Institute

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