scholarly journals The cold neutron chopper spectrometer at the Spallation Neutron Source—A review of the first 8 years of operation

2016 ◽  
Vol 87 (9) ◽  
pp. 093902 ◽  
Author(s):  
G. Ehlers ◽  
A. A. Podlesnyak ◽  
A. I. Kolesnikov
Keyword(s):  
Neutron Source ◽  
Cold Neutron ◽  
Spallation Neutron Source

scholarly journals The new cold neutron chopper spectrometer at the Spallation Neutron Source: Design and performance

2011 ◽  
Vol 82 (8) ◽  
pp. 085108 ◽  
Author(s):  
G. Ehlers ◽  
A. A. Podlesnyak ◽  
J. L. Niedziela ◽  
E. B. Iverson ◽  
P. E. Sokol
Keyword(s):  
Neutron Source ◽  
Cold Neutron ◽  
Spallation Neutron Source ◽  
And Performance

scholarly journals Cryogenic design for a high intensity ultracold neutron source at TRIUMF

2019 ◽  
Vol 219 ◽  
pp. 10001
Author(s):  
Shinsuke Kawasaki ◽  
Takahiro Okamura ◽  
Keyword(s):  
Heat Transport ◽  
Neutron Source ◽  
Superfluid Helium ◽  
High Intensity ◽  
Cold Neutron ◽  
Spallation Neutron Source ◽  
Cold Neutrons ◽  
Kapitza Conductance ◽  
Neutron Converter ◽  
Ultra Cold Neutron

The TUCAN (TRIUMF Ultra-Cold Advanced Neutron) collaboration has been developing a source of high-intensity ultra-cold neutrons for use in a neutron electric dipole search. The source is composed of a spallation neutron source and a superfluid helium ultra-cold neutron converter, surrounded by a cold moderator. The temperature of the superfluid helium needs to be maintained at approximately 1.0 K to suppress up-scattering by phonons. The Kapitza conductance and the heat transport by the superfluid helium are key parameters which need to be well characterized. We have therefore investigated them in first experiments. Current efforts are directed at optimizing the design of the helium cryostat.

The Spallation Neutron Source (SNS) project: a fertile ground for radiation protection and shielding challenges

2005 ◽  
Vol 115 (1-4) ◽  
pp. 23-32 ◽  
Author(s):  
F. X. Gallmeier ◽  
P. D. Ferguson ◽  
I. I. Popova ◽  
E. B. Iverson
Keyword(s):  
Radiation Protection ◽  
Neutron Source ◽  
Spallation Neutron Source ◽  
Fertile Ground
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