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Association EURATOM - MEdC - IFA

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<strong>Association</strong> <strong>EURATOM</strong> - <strong>MEdC</strong><br />

SHFD neutron diagnostics<br />

Proposals for SHFD application on EU tokamaks<br />

(A stage-by-stage approach)<br />

Stage 1<br />

Neutron fluence measurements at a specific location on the tokamak<br />

Location: near or at the place of the activation detectors<br />

Expected results<br />

- Time-integrated (over one tokamak shot, or a series of JET discharges),<br />

energy-integrated (above the detector threshold) value of the neutron<br />

fluence (n/cm2) at that location.<br />

- Comparison of the two methods based on very different neutron<br />

interaction processes.<br />

- Improvement in the accuracy of the measurement of the neutron yield<br />

per discharge.<br />

>A first step towards a new calibration technique => ITER<br />

1st <strong>Association</strong> Day, Institute of Atomic Physics, Magurele - Bucharest, 11 November 2004

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