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gamma detection - FNDA 2011

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Fast neutron inelastic scattering at the nELBE facility<br />

Neutron facility comparison<br />

n-ToF-device<br />

Seite 55<br />

CERN<br />

n-ToF<br />

LANL<br />

NSC<br />

ORNL<br />

SNS<br />

FZK<br />

VdG<br />

ORNL<br />

ORELA<br />

IRMM<br />

GELINA<br />

ELBE ELBE with<br />

SRF-gun<br />

beam power / kW 10 60 1000 0.4 8 7 5 40<br />

rep. rate / s -1 0.4 20 60<br />

2.5⋅10<br />

5 500 800<br />

1.6⋅10<br />

6<br />

pulse charge / nC ≈ 10 3 4⋅10 3 3⋅10 4 0.01 ≈ 100 ≈ 100 0.08 1.8<br />

flight path / m 183 ≈ 20 60 84 0.8 40 20 6 6<br />

n-pulse length / ns > 7 125 100-700 ≈ 1 > 4 > 1 < 0.4 < 0.4<br />

E min / eV 0.1 0.1 1 0.1 10 3 10 10 2⋅10 5 2⋅10 4<br />

E max /eV 3⋅10 8 ≈10 8 ≈10 8 2⋅10 5 5⋅10 6 4⋅10 6 7⋅10 6 7⋅10 6<br />

∆E/E @ 1MeV<br />

n-flux<br />

(s⋅cm 2 ⋅E-decade) -<br />

1<br />

0.5<br />

%<br />

5⋅10 5<br />

5% ≈ 10 % >10 % ≈ 10 % < 1 % < 2 % ≈ 1 % ≈ 1 %<br />

10 5 ≈ 10 7 ≈ 10 6 10 6 -10 7 ≈ 10 4 10 4 4⋅10 4 10 5 10 6

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