Polarizing Ultra-Cold Neutrons for the Superconducting Trap PENeLOPE

2014 ◽  
Author(s):  
R. PICKER ◽  
W. SCHREYER ◽  
F. HAAS ◽  
F.J. HARTMANN ◽  
M. LOSEKAMM ◽  
...  
Keyword(s):  
Cold Neutrons

Tailoring neutron beam properties by target-moderator-reflector optimisation

2021 ◽  
pp. 1-16
Author(s):  
Paul Zakalek ◽  
Jingjing Li ◽  
Sarah Böhm ◽  
Ulrich Rücker ◽  
Jörg Voigt ◽  
...  
Keyword(s):  
Neutron Beam ◽  
Heavy Water ◽  
Neutron Production ◽  
Neutron Sources ◽  
Light Water ◽  
Cold Neutrons ◽  
Efficient Coupling ◽  
Borated Polyethylene ◽  
Compact Design ◽  
Neutronic Performance

Compact accelerator-driven neutron sources allow to operate multiple optimised target-moderator-reflector (TMR) units adapted to the requirements of the respective instruments. The compact design of the TMR units allows an efficient coupling of neutron production, neutron moderation and extraction, but requires a novel way of optimisation. The neutronic performance of different TMR units based on polyethylene, heavy water and a mixture of heavy and light water moderators together with Pb and Be reflectors and a borated polyethylene absorber is discussed. Extraction channels for thermal and cold neutrons are investigated regarding the energy and time spectra.

scholarly journals Neutron Imaging Using a Fine-Grained Nuclear Emulsion

2021 ◽  
Vol 7 (1) ◽  
pp. 4
Author(s):  
Katsuya Hirota ◽  
Tomoko Ariga ◽  
Masahiro Hino ◽  
Go Ichikawa ◽  
Shinsuke Kawasaki ◽  
...  
Keyword(s):  
Image Analysis ◽  
High Resolution ◽  
Neutron Detector ◽  
Nuclear Emulsion ◽  
Neutron Imaging ◽  
The Other ◽  
Crystal Oscillator ◽  
Fine Grained ◽  
Cold Neutrons ◽  
Track Analysis

A neutron detector using a fine-grained nuclear emulsion has a sub-micron spatial resolution and thus has potential to be applied as high-resolution neutron imaging. In this paper, we present two approaches to applying the emulsion detectors for neutron imaging. One is using a track analysis to derive the reaction points for high resolution. From an image obtained with a 9 μm pitch Gd grating with cold neutrons, periodic peak with a standard deviation of 1.3 μm was observed. The other is an approach without a track analysis for high-density irradiation. An internal structure of a crystal oscillator chip, with a scale of approximately 30 μm, was able to be observed after an image analysis.

scholarly journals Biomembranes research using thermal and cold neutrons

2015 ◽  
Vol 192 ◽  
pp. 41-50 ◽  
Author(s):  
F.A. Heberle ◽  
D.A.A. Myles ◽  
J. Katsaras
Keyword(s):  
Cold Neutrons

A phase-grating interferometer for very cold neutrons

1989 ◽  
Vol 140 (7-8) ◽  
pp. 363-367 ◽  
Author(s):  
Manfred Gruber ◽  
Kurt Eder ◽  
Anton Zeilinger ◽  
Roland Gähler ◽  
Walter Mampe
Keyword(s):  
Phase Grating ◽  
Cold Neutrons ◽  
Grating Interferometer
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