Design and performance of the spallation neutron source backscattering spectrometer

2002 ◽  
Vol 74 (0) ◽  
pp. s1592-s1594 ◽  
Author(s):  
K.W. Herwig ◽  
W.S. Keener
Keyword(s):  
Neutron Source ◽  
Spallation Neutron Source ◽  
And Performance

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

Design challenges and performance of nested neutron mirrors for microfocusing on SNAP

2009 ◽  
Vol 42 (6) ◽  
pp. 1004-1008 ◽  
Author(s):  
Gene E. Ice ◽  
Judy W. L. Pang ◽  
Chris Tulk ◽  
Jamie Molaison ◽  
Jae-Young Choi ◽  
...  
Keyword(s):  
Neutron Source ◽  
Spallation Neutron Source ◽  
Oak Ridge ◽  
Early Results ◽  
Good Figure ◽  
Theoretical Predictions ◽  
And Performance ◽  
Spallation Neutrons ◽  
Design Challenges

Kirkpatrick–Baez (KB) neutron supermirrors can efficiently focus polychromatic neutron beams to micrometre dimensions. The ultimate size is determined mainly by the perfection of the mirrors and by the size of the beam needed to have sufficient experimental signal. Nested or Montel KB mirrors can collect ∼2.6 times more beam than standard sequential KB optics, but require good figure perfection at the edge of one mirror. This paper describes the characterization of the figure errors over the important reflective portions of the two mirrors needed for a Montel focusing pair. The measurements are placed in context with theoretical predictions and are used to predict mirror focusing performance. Strategies to improve on the focusing of this class of optics are suggested and early results from these mirrors installed on the Spallation Neutrons at Pressure (SNAP) Beamline 3 at the Spallation Neutron Source (SNS) at Oak Ridge are presented.

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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