scholarly journals IER-501 CED-1: Preliminary Design of a New Pulsed-Neutron Die-Away Experimental Testbed for Thermal Scattering Law Benchmarks (PNDA)

2021 ◽  
Author(s):  
D Siefman ◽  
E Heckmaier ◽  
W Zwyiec ◽  
D Heinrichs
Keyword(s):  
Preliminary Design ◽  
Experimental Testbed ◽  
Thermal Scattering ◽  
Pulsed Neutron

Local atomic structure of relaxor ferroelectric solids studied by pulsed neutron scattering

1994 ◽  
Vol 52 ◽  
pp. 554-555
Author(s):  
T. Egami ◽  
H. D. Rosenfeld ◽  
S. Teslic
Keyword(s):  
Neutron Scattering ◽  
Atomic Structure ◽  
Argonne National Laboratory ◽  
Relaxor Ferroelectrics ◽  
Relaxor Ferroelectric ◽  
Crystallographic Structure ◽  
Chemical Inhomogeneity ◽  
Distribution Analysis ◽  
Ferroelectric Transition ◽  
Pulsed Neutron

Relaxor ferroelectrics, such as Pb(Mg1/3Nb2/3)O3 (PMN) or (Pb·88La ·12)(Zr·65Ti·35)O3 (PLZT), show diffuse ferroelectric transition which depends upon frequency of the a.c. field. In spite of their wide use in various applications details of their atomic structure and the mechanism of relaxor ferroelectric transition are not sufficiently understood. While their crystallographic structure is cubic perovskite, ABO3, their thermal factors (apparent amplitude of thermal vibration) is quite large, suggesting local displacive disorder due to heterovalent ion mixing. Electron microscopy suggests nano-scale structural as well as chemical inhomogeneity.We have studied the atomic structure of these solids by pulsed neutron scattering using the atomic pair-distribution analysis. The measurements were made at the Intense Pulsed Neutron Source (IPNS) of Argonne National Laboratory. Pulsed neutrons are produced by a pulsed proton beam accelerated to 750 MeV hitting a uranium target at a rate of 30 Hz. Even after moderation by a liquid methane moderator high flux of epithermal neutrons with energies ranging up to few eV’s remain.

Thermal scattering of electrons in semiconductors

Physica ◽  
1954 ◽  
Vol 3 (7-12) ◽  
pp. 983-985
Author(s):  
C ENZ
Keyword(s):  
Thermal Scattering

The Minnesota inverted-tee system: Parametric studies for preliminary design

PCI Journal ◽  
2012 ◽  
Vol 57 (2) ◽  
pp. 162-179
Author(s):  
Roberto Piccinin ◽  
Arturo E. Schultz
Keyword(s):  
Preliminary Design ◽  
Parametric Studies

IDENTIFIKASI RASIO PARAMETER KAPAL PENUMPANG CATAMARAN BERBAHAN FRP

2013 ◽  
Vol 12 (3) ◽  
Author(s):  
Soegeng Hardjono
Keyword(s):  
Main Parameter ◽  
Slenderness Ratio ◽  
Technical Analysis ◽  
Preliminary Design ◽  
Naval Architecture

Parameter ratios are important information for the ship designer in the preliminary design stages. They can be used as a tool to identify the main parameter of vessel and their other technical characteristics. The information about parameter ratios of mono-hull vessel is currently available in Naval Architecture literatures, but it is not the case for the type of twin-hull vessel called catamaran. Having conducted technical analysis in this research, it has been identified that parameter ratios of passenger catamaran vessel made of FRP has values of L / B ratio from 2.52 up to 3.7, L / D ratio from 5.25 up to 11:24, slenderness ratio (Lwl/BwL) from  9 up to 12. Other values of various parameter ratios like B/T, D/T, L /√ L, and Displacement/L are also discussed.

Kajian Kinerja Kapal Bantu Hidro-Oceanography

2019 ◽  
Vol 4 (1) ◽  
pp. 35
Author(s):  
Meitha Soetardjo ◽  
Dian Purnamasari
Keyword(s):  
Preliminary Design ◽  
Resistance Model ◽  
Supporting Force

Bantu Hidro-Oceanography (BHO) adalah salah satu satuan bantu dalam bidang survei Hidro-Oceanography yang termasuk dalam susunan tempur pendukung (Supporting Force). Untuk kepentingan tersebut maka preliminary design kapal Hidro-Oceanography dilaksanakan sebagai langkah awal dalam perencanaan dan pengadaan kapal Hidro-Oceanography untuk mengkaji karakteristik umum desain yaitu hidrostatik dan stabilitas sehingga aspek kelayakan kapal dapat terpenuhi. Analisa hasil kajian kinerja kapal Hidro-Oceanography dipersiapkan untuk pengujian tahanan/resistance model kapal.Keywords : Preliminary design1, Hydrostatic2, Stability3

SELF-COMPENSATED CASED-HOLE PULSED NEUTRON SPECTROSCOPY MEASUREMENTS

2020 ◽  
Author(s):  
Tong Zhou ◽  
◽  
David Rose ◽  
Jeffrey Miles ◽  
Jason Gendur ◽  
...  
Keyword(s):  
Neutron Spectroscopy ◽  
Pulsed Neutron
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