scholarly journals Supporting technologies for a long-pulse spallation source

1998 ◽  
Author(s):  
G.J. Russell ◽  
D.J. Weinacht ◽  
P.D. Ferguson ◽  
E.J. Pitcher ◽  
J.D. Court ◽  
...  
Keyword(s):  
Spallation Source ◽  
Long Pulse

The performance of neutron diffractometers at long and short pulse spallation sources: Comparison between ESS and J-PARC

2021 ◽  
pp. 1-18
Author(s):  
Masatoshi Arai ◽  
Ken H. Andersen ◽  
Dimitri N. Argyriou ◽  
Werner Schweika ◽  
Luca Zanini ◽  
...  
Keyword(s):  
Short Pulse ◽  
Source Power ◽  
Advantages And Disadvantages ◽  
Epithermal Neutrons ◽  
Pdf Analysis ◽  
Comparable Performance ◽  
Spallation Source ◽  
The Difference ◽  
Pulse Structure ◽  
Long Pulse

The general performance of diffractometers at the first long pulse spallation source ESS, is compared with their counterparts at J-PARC, a short pulse spallation source. The difference in the inherent pulse structure of these neutron sources presents opportunities for new concepts for instrumentation, where performance does not scale simply with source power. The article describes advantages and disadvantages of those diffractometers, adapting to the very different source characteristics. We find that the two sources offer comparable performance in flux and resolution when operating in high-resolution mode. ESS offers significant advantages in tunability and flexibility, notably in the ability to relax resolution in order to increase flux for a given experiment. The slow repetition rate of ESS favors long instruments. On the other hand, J-PARC instruments perform very well in spite of the lower source power and allow better access to epithermal neutrons, of particular interest for PDF analysis of diffraction data.

scholarly journals Simulation of a suite of generic long-pulse neutron instruments to optimize the time structure of the European Spallation Source

2013 ◽  
Vol 84 (5) ◽  
pp. 055106 ◽  
Author(s):  
Kim Lefmann ◽  
Kaspar H. Klenø ◽  
Jonas Okkels Birk ◽  
Britt R. Hansen ◽  
Sonja L. Holm ◽  
...  
Keyword(s):  
Pulse Neutron ◽  
Time Structure ◽  
Spallation Source ◽  
Long Pulse

Reflectometry at a long pulse spallation source

1997 ◽  
Vol 6 (1) ◽  
pp. 103-111
Author(s):  
H. Fritzsche ◽  
C. Guy ◽  
J. Stride ◽  
F. Mezei
Keyword(s):  
Spallation Source ◽  
Long Pulse

Performance of a spin echo spectrometer at a long pulse spallation source

1997 ◽  
Vol 6 (1) ◽  
pp. 95-102 ◽  
Author(s):  
T. Keller ◽  
F. Mezei ◽  
C. Guy ◽  
S. Schorr ◽  
J. Stride
Keyword(s):  
Spin Echo ◽  
Spallation Source ◽  
Long Pulse
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