• No results found

time-of-flight neutron powder diffraction

Crystal structures of deuterated sodium molybdate dihydrate and sodium tungstate dihydrate from time of flight neutron powder diffraction

Crystal structures of deuterated sodium molybdate dihydrate and sodium tungstate dihydrate from time of flight neutron powder diffraction

... coherent neutron scattering lengths of the constituent elements differ by less than a factor of two, being ...incoherent neutron scattering cross section of 1 H is large ...

15

Crystal structures of deuterated sodium molybdate dihydrate and sodium tungstate dihydrate from time of flight neutron powder diffraction

Crystal structures of deuterated sodium molybdate dihydrate and sodium tungstate dihydrate from time of flight neutron powder diffraction

... coherent neutron scattering lengths of the constituent elements differ by less than a factor of two, being ...incoherent neutron scattering cross section of 1 H is large ...

14

Residual Thermal Phase Stresses in α γ Fe Cr Ni Alloys Measured
by a Neutron Diffraction Time of Flight Method

Residual Thermal Phase Stresses in α γ Fe Cr Ni Alloys Measured by a Neutron Diffraction Time of Flight Method

... high-resolution neutron powder diffractometer using a time-of-flight (TOF) ...method. Diffraction patterns were analyzed by the Rietveld method and the single-peak ...

7

Structure of magnesium selenate enneahydrate, MgSeO4·9H2O, from 5 to 250 K using neutron time of flight Laue diffraction

Structure of magnesium selenate enneahydrate, MgSeO4·9H2O, from 5 to 250 K using neutron time of flight Laue diffraction

... and experimental Mg—O distances (R 2 = 0.990). By contrast, the calculated H O hydrogen bond lengths are almost all shorter than those observed in the real crystal. Evidently, the over-inflation of the unit cell by the ...

16

Crystal structures of spinel type Na2MoO4and Na2WO4 revisited using neutron powder diffraction

Crystal structures of spinel type Na2MoO4and Na2WO4 revisited using neutron powder diffraction

... the neutron scattering experiments, each specimen was loaded into a vanadium tube of 11 mm internal diameter to a depth of approximately 25 ...ISIS neutron spal- lation source and data were collected in the ...

10

Glycine zinc sulfate penta­hydrate: redetermination at 10 K from time of flight neutron Laue diffraction

Glycine zinc sulfate penta­hydrate: redetermination at 10 K from time of flight neutron Laue diffraction

... ) coordinating to Zn by one of the carboxylate oxygen atoms (Fig. 2); the inversion centre results in an all-trans configuration for these units. The Zn2 octa- hedron has the form hexaaquazinc(II); the sulfate tetrahedra ...

13

Crystal structures of spinel type Na2MoO4 and Na2WO4 revisited using neutron powder diffraction

Crystal structures of spinel type Na2MoO4 and Na2WO4 revisited using neutron powder diffraction

... for neutron diffraction analysis, the anhydrous phases were synthesised and an opportunity arose to acquire neutron powder diffraction ...a neutron radiation probe is that the ...

9

The first layered analogue of Sr2FeMoO6; the structure and electronic properties of Sr4FeMoO8

The first layered analogue of Sr2FeMoO6; the structure and electronic properties of Sr4FeMoO8

... and neutron powder diffraction data shows that this phase adopts the space group I4/mmm (a 5 ...temperature neutron diffraction experiments have been used to examine the magnetic ...

6

The measurement programme at the neutron time-of-flight facility n_TOF at CERN

The measurement programme at the neutron time-of-flight facility n_TOF at CERN

... The majority of the measurements at the n TOF facility are related to cross sections: capture and fission experiments since phase-I and also (n,α) and (n,p) measurements in phase-II and phase-III. Once an experiment has ...

6

Strong magnetic exchange and frustrated ferrimagnetic order in a weberite type inorganic organic hybrid fluoride

Strong magnetic exchange and frustrated ferrimagnetic order in a weberite type inorganic organic hybrid fluoride

... α-Fe. Powder neutron diffraction data were collected on the GEM diffractometer at the ISIS Neutron and Muon ...each diffraction pattern, the ...

22

Measurement of neutron capture and fission cross sections of 233U in the resonance region

Measurement of neutron capture and fission cross sections of 233U in the resonance region

... whole neutron spectrum, from thermal to high energy ...technologies, neutron induced cross sections at low energy can provide signif- icant knowledge on nuclear properties, which is a fundamental input in ...

7

Structure and magnetic ordering in the defect compounds ErGe1 83

Structure and magnetic ordering in the defect compounds ErGe1 83

... Er powder data of the D2B instrument and the comparable moments observed in the highest field strength considered absolute values of the neutron coherent scattering length the moment value is seen to be ...

6

Thermodynamic properties, electron spin resonance and underlying spin model in Cu3Y(SeO3)2O2Cl

Thermodynamic properties, electron spin resonance and underlying spin model in Cu3Y(SeO3)2O2Cl

... In order to estimate the interlayer exchange energy the unit cell was doubled along the c-axis. The total energy of the seven different magnetic configurations was calculated within the GGA+U approximation. The lowest ...

16

In situ powder neutron diffraction study of non stoichiometric phase formation during the hydrogenation of Li3N

In situ powder neutron diffraction study of non stoichiometric phase formation during the hydrogenation of Li3N

... situ neutron diffraction measurements, some of the present authors reported an alternative reaction pathway involving the suppression of LiH in the initial stages of hydrogenation, in addition to the ...

9

Advances in the modelling of in-situ powder diffraction data

Advances in the modelling of in-situ powder diffraction data

... according to these phases was assumed. In such a model, one metal cation occupies the origin, while the other is situated in the center of the cubic unit cell. The halide is located on the center of the faces of the ...

210

k=0Magnetic Structure and Absence of Ferroelectricity in SmFeO3

k=0Magnetic Structure and Absence of Ferroelectricity in SmFeO3

... orientations of the antiferromagnetic axes we have simu- lated the experimental spectra using configuration inter- action cluster calculations [14]. The calculated spectra are shown in Figs. 4(a)–4(c) and the parameters ...

6

Neutron diffraction studies of ices

Neutron diffraction studies of ices

... In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted.. Copyright of the Dissertation is held by the Au[r] ...

325

Structure and superconductivity of two different phases of Re3W

Structure and superconductivity of two different phases of Re3W

... This work was supported by the Engineering and Phys- ical Sciences Research Council (EPSRC) and the Science and Technology Facilities Council (STFC). Xpress Ac- cess neutron beam time on GEM was provided by ...

8

Complex magnetic ordering in the oxide selenide Sr2Fe3Se2O3

Complex magnetic ordering in the oxide selenide Sr2Fe3Se2O3

... product was a grey powder and the room temperature resistivity of a cold-pressed pellet of sample A was measured as 0.4 M  cm, suggesting insulating behaviour. A second sample made by repeated annealing at 740°C ...

30

A Study of T = 1, T = 3/2, and T = 2 States in Some Light Nuclei Using (He^3,n) Reactions

A Study of T = 1, T = 3/2, and T = 2 States in Some Light Nuclei Using (He^3,n) Reactions

... Among the factors which contribute to the resolution are beam energy resolution, beam burst length, electronic resolution, the total neutron flight time, the flight time of neutrons thro[r] ...

213

Show all 10000 documents...

Related subjects