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A neutron diagnostic for high current deuterium beamsa)
a)Contributed paper, published as part of the Proceedings of the 14th International Conference on Ion Sources, Giardini Naxos, Italy, September 2011.
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10.1063/1.3673013
/content/aip/journal/rsi/83/2/10.1063/1.3673013
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/2/10.1063/1.3673013
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematics of the SPIDER beam dump. The beam dump is tilted by 30° relative to the beam axis. The CNESM detectors (black) are placed right behind the beam dump.

Image of FIG. 2.
FIG. 2.

Illustration of how the Al cathode thickness can be used to suppress detection of neutrons with oblique incidence. Neutrons are converted into protons in the polyethylene foil (black). Only one of the four protons in the figure crosses the Al foil (grey) and produces a discharge in the GEM gas.

Image of FIG. 3.
FIG. 3.

Simulated distribution of proton energy deposited inside the nGEM gas for different neutron incident angles θ n. The thickness of the Al foil was t = 51 μm. The intensity is per unit neutron source. The bin width is 10 keV.

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/content/aip/journal/rsi/83/2/10.1063/1.3673013
2012-02-22
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A neutron diagnostic for high current deuterium beamsa)
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/2/10.1063/1.3673013
10.1063/1.3673013
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