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Time-of-flight pulsed neutron diffraction of molten salts

Journal Article:

Abstract

In this work, the pulsed neutron diffraction of molten alkali metal nitrate and bismuth trihalide was measured by the time-of-flight method. An electron linear accelerator was used as the pulsed neutron source. All the measurements were carried out with the T-O-F neutron diffractometer installed on the 300 MeV electron lineac. Molten NaNO/sub 3/ and RbNO/sub 3/ were adopted as the samples for alkali metal nitrate. The measurement is in progress for KNO/sub 3/ and LiNO/sub 3/. As the first step of the study on bismuth-bismuth trihalide system, the temperature dependence of structure factors was observed for BiCl/sub 3/, BiBr/sub 3/ and BiI/sub 3/ in the liquid state. The structure factors Sm(Q) for molten NaNO/sub 3/ at 340/sup 0/C and RbNO/sub 3/ at 350/sup 0/C were obtained, and the form factor F/sub 1/(Q) for single NO/sub 3//sup -/ radical with equilateral triangle structure was calculated. In case of molten NaNO/sub 3/, the first peak of Sm(Q) is simply smooth and a small hump can be observed in the neighbourhood of the first minimum Q position. The first peak of Sm(Q) for molten RbNO/sub 3/ is divided into two peaks, whereas a hump at the first minimum becomes big, and shifts to  More>>
Authors:
Fukushima, Y; Misawa, M; Suzuki, K [1] 
  1. Tohoku Univ., Sendai (Japan). Research Inst. for Iron, Steel and Other Metals
Publication Date:
Jun 01, 1975
Product Type:
Journal Article
Reference Number:
AIX-07-266472; EDB-77-010093
Resource Relation:
Journal Name: Kakuriken Kenkyu Hokoku; (Japan); Journal Volume: 8:1
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; BISMUTH BROMIDES; NEUTRON DIFFRACTION; STRUCTURAL CHEMICAL ANALYSIS; BISMUTH CHLORIDES; BISMUTH IODIDES; MOLTEN SALTS; RUBIDIUM NITRATES; SODIUM NITRATES; LINEAR MOMENTUM TRANSFER; MOLECULAR STRUCTURE; PULSED NEUTRON TECHNIQUES; ALKALI METAL COMPOUNDS; BISMUTH COMPOUNDS; BROMIDES; BROMINE COMPOUNDS; CHLORIDES; CHLORINE COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; HALIDES; HALOGEN COMPOUNDS; IODIDES; IODINE COMPOUNDS; NITRATES; NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; RUBIDIUM COMPOUNDS; SALTS; SCATTERING; SODIUM COMPOUNDS; 654003* - Radiation & Shielding Physics- Neutron Interactions with Matter; 400201 - Chemical & Physicochemical Properties
OSTI ID:
7250302
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: KKYHB
Submitting Site:
INIS
Size:
Pages: 113-118
Announcement Date:
Nov 01, 1976

Journal Article:

Citation Formats

Fukushima, Y, Misawa, M, and Suzuki, K. Time-of-flight pulsed neutron diffraction of molten salts. Japan: N. p., 1975. Web.
Fukushima, Y, Misawa, M, & Suzuki, K. Time-of-flight pulsed neutron diffraction of molten salts. Japan.
Fukushima, Y, Misawa, M, and Suzuki, K. 1975. "Time-of-flight pulsed neutron diffraction of molten salts." Japan.
@misc{etde_7250302,
title = {Time-of-flight pulsed neutron diffraction of molten salts}
author = {Fukushima, Y, Misawa, M, and Suzuki, K}
abstractNote = {In this work, the pulsed neutron diffraction of molten alkali metal nitrate and bismuth trihalide was measured by the time-of-flight method. An electron linear accelerator was used as the pulsed neutron source. All the measurements were carried out with the T-O-F neutron diffractometer installed on the 300 MeV electron lineac. Molten NaNO/sub 3/ and RbNO/sub 3/ were adopted as the samples for alkali metal nitrate. The measurement is in progress for KNO/sub 3/ and LiNO/sub 3/. As the first step of the study on bismuth-bismuth trihalide system, the temperature dependence of structure factors was observed for BiCl/sub 3/, BiBr/sub 3/ and BiI/sub 3/ in the liquid state. The structure factors Sm(Q) for molten NaNO/sub 3/ at 340/sup 0/C and RbNO/sub 3/ at 350/sup 0/C were obtained, and the form factor F/sub 1/(Q) for single NO/sub 3//sup -/ radical with equilateral triangle structure was calculated. In case of molten NaNO/sub 3/, the first peak of Sm(Q) is simply smooth and a small hump can be observed in the neighbourhood of the first minimum Q position. The first peak of Sm(Q) for molten RbNO/sub 3/ is divided into two peaks, whereas a hump at the first minimum becomes big, and shifts to the low Q side of the second peak. The size of the NO/sub 3//sup -/ radical in molten NaNO/sub 3/ is a little smaller than that in molten RbNO/sub 3/. The values of the bond length in the NO/sub 3//sup -/ radical are summarized for crystal state and liquid state. The temperature dependence of the structure factor S(Q) was observed for BiCl/sub 3/, BiBr/sub 3/ and BiI/sub 3/, and shown in a figure.}
journal = {Kakuriken Kenkyu Hokoku; (Japan)}
volume = {8:1}
journal type = {AC}
place = {Japan}
year = {1975}
month = {Jun}
}