SHAMGAR's OXGOAD: A new approach to the problem of resolution corrections for triple-axis neutron inelastic scattering data using parallel processors

1985 ◽  
Vol 18 (6) ◽  
pp. 493-498 ◽  
Author(s):  
P. W. Mitchell ◽  
M. T. Dove
Keyword(s):  
Inelastic Scattering ◽  
Scattering Data ◽  
Linear Least Squares ◽  
Resolution Function ◽  
New Approach ◽  
Neutron Inelastic Scattering ◽  
Full Resolution ◽  
Least Squares Fit ◽  
Distributed Array ◽  
And Performance

One problem in the analysis of triple-axis neutron inelastic scattering data is the large numerical computations involved in applying full resolution corrections, which in one extreme involves an often-repeated four-dimensional numerical integral. A program called SHAMGAR has been written for an ICL Distributed Array Processor that will both calculate the full convolution of a model scattering function with the resolution function and allow refinement of the model simultaneously to many sets of experimental data by a non-linear least-squares fit. Sample results and performance figures are given.

scholarly journals Collective Reactions in the Continuum

2019 ◽  
Vol 7 ◽  
pp. 209
Author(s):  
P. Demetriou ◽  
A. Marcinkowski ◽  
P. E. Hodgson
Keyword(s):  
Experimental Data ◽  
Inelastic Scattering ◽  
Cross Sections ◽  
Absolute Magnitude ◽  
Collective Excitations ◽  
Scattering Data ◽  
Detailed Structure ◽  
Sum Rule ◽  
Neutron Inelastic Scattering ◽  
The Continuum

We show that pre-equlibrium inelastic scattering reactions to the continuum contain substantial collective components in addition to the multistep direct and multistep compound reactions. These collective reactions are investigated for the vibrational nuclei 56Fe, 58Ni, 90Zr, 93Nb, 208Pb and 209Bi , and the strongly-deformed, rotational W nucleus. The collective cross-sections are calculated using the experimental data for low-lying collective excitations supplemented where necessary by the giant multipole resonances evaluated using the energy-weight ed sum rule. The MSC and MSD cross-sections are evaluated by the Feshbach-Kerman-Koonin theory using a consistent set of parameters determined by analyses of (p, xn) reactions, that have practically no collective components. The results are compared with high-resolution neutron inelastic scattering data and prove able to account for the absolute magnitude of the cross-sections and also their detailed structure.

Multidimensional Bin-Width Optimization for Histogram and Its Application to Four-Dimensional Neutron Inelastic Scattering Data

2019 ◽  
Vol 88 (4) ◽  
pp. 044002 ◽  
Author(s):  
Kensuke Muto ◽  
Hirotaka Sakamoto ◽  
Keisuke Matsuura ◽  
Taka-hisa Arima ◽  
Masato Okada
Keyword(s):  
Inelastic Scattering ◽  
Scattering Data ◽  
Neutron Inelastic Scattering

Extraction of pair-interactions from neutron inelastic scattering data

1978 ◽  
Vol 17 (3) ◽  
pp. 1156-1160 ◽  
Author(s):  
Ravinder Bansal ◽  
P. K. Banerjee ◽  
Narinder K. Ailawadi
Keyword(s):  
Inelastic Scattering ◽  
Scattering Data ◽  
Neutron Inelastic Scattering ◽  
Pair Interactions

Music of Tragedy

2017 ◽  
Author(s):  
Naomi A. Weiss
Keyword(s):  
Cultural Context ◽  
Musical Language ◽  
New Approach ◽  
Late Work ◽  
Music Making ◽  
Dramatic Action ◽  
Instrumental Accompaniment ◽  
And Performance

The Music of Tragedy offers a new approach to the study of classical Greek theater by examining the use of musical language, imagery, and performance in the late work of Euripides. Drawing on the ancient conception of mousikē, in which words, song, dance, and instrumental accompaniment were closely linked, Naomi Weiss emphasizes the interplay of performance and imagination—the connection between the chorus’s own live singing and dancing in the theater and the images of music-making that frequently appear in their songs. Through detailed readings of four plays, she argues that the mousikē referred to and imagined in these plays is central to the progression of the dramatic action and to ancient audiences’ experiences of tragedy itself. She situates Euripides’s experimentation with the dramaturgical effects of mousikē within a broader cultural context, and in doing so, she shows how he both continues the practices of his tragic predecessors and also departs from them, reinventing traditional lyric styles and motifs for the tragic stage.

QCD analysis of muon-nucleon deep-inelastic scattering data

1982 ◽  
Vol 117 (5) ◽  
pp. 349-352 ◽  
Author(s):  
N.G. Fadeev ◽  
I.A. Savin ◽  
V.V. Sanadze ◽  
N.B. Skachkov
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Scattering Data ◽  
Deep Inelastic Scattering Data ◽  
Qcd Analysis
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