scholarly journals Some experimental studies on time-of-flight radiography using a pulsed neutron source

2005 ◽  
Vol 52 (1) ◽  
pp. 371-374 ◽  
Author(s):  
Y. Kiyanagi ◽  
N. Sakamoto ◽  
H. Iwasa ◽  
T. Kamiyama ◽  
F. Hiraga ◽  
...  
Keyword(s):  
Neutron Source ◽  
Experimental Studies ◽  
Time Of Flight ◽  
Pulsed Neutron ◽  
Pulsed Neutron Source

Electronically focused time-of-flight powder diffractometers at the intense pulsed neutron source

1989 ◽  
Vol 22 (4) ◽  
pp. 321-333 ◽  
Author(s):  
J. D. Jorgensen ◽  
J. Faber ◽  
J. M. Carpenter ◽  
R. K. Crawford ◽  
J. R. Haumann ◽  
...  
Keyword(s):  
High Resolution ◽  
Neutron Source ◽  
Rietveld Method ◽  
Time Of Flight ◽  
Scattering Angle ◽  
Wide Range ◽  
Pulsed Neutron ◽  
Pulsed Neutron Source

Two time-of-flight powder diffractometers have operated at the Intense Pulsed Neutron Source (IPNS) since August 1981. These instruments use dedicated microcomputers to focus time-of-flight events so that data from different detectors can be summed into a single histogram. Thus, large multidetector arrays can be employed at any scattering angle from 12 to 157°. This design permits data to be collected over a uniquely wide range of d spacings while maintaining high resolution and count rates. The performance of the two instruments is evaluated by analyzing data from a standard Al2O3 sample by the Rietveld method. These instruments provide the capability for moderate- to high-resolution measurements with the duration of a typical run being a few hours.

A Fast Pulsed Neutron Source for Time-of-Flight Detection of Nuclear Materials and Explosives

2011 ◽  
Author(s):  
Mahadevan Krishnan ◽  
Brian Bures ◽  
Colt James ◽  
Robert Madden ◽  
Wolfgang Hennig ◽  
...  
Keyword(s):  
Neutron Source ◽  
Time Of Flight ◽  
Nuclear Materials ◽  
Pulsed Neutron ◽  
Pulsed Neutron Source

scholarly journals Neutron Powder Diffraction at a Pulsed Neutron Source: A study of Resolution Effects

1985 ◽  
Vol 29 ◽  
pp. 119-130
Author(s):  
J. Faber ◽  
R. L. Hitterman
Keyword(s):  
Neutron Source ◽  
Time Of Flight ◽  
General Purpose ◽  
Neutron Powder Diffraction ◽  
Scattering Data ◽  
Dependent Data ◽  
Resolution Function ◽  
Flight Data ◽  
Pulsed Neutron ◽  
Pulsed Neutron Source

AbstractThe General Purpose Powder Diffractometer (GPPD), a high resolution (∆d/d=0.002) time-of-flight instrument, exhibits a resolution function that is almost independent of d-spacing. Some of the special properties of time-of-flight scattering data obtained at a pulsed neutron source will be discussed. A method is described that transforms wavelength dependent data, obtained at a pulsed neutron source, so that standard structural least-squares analyses can be applied. Several criteria are given to show when these techniques are useful in time-of-flight data analysis.

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