ADVANCED FUSION TECHNOLOGY RESEARCH AND DEVELOPMENT ANNUAL REPORT TO THE U.S. DEPARTMENT OF ENERGY OCTOBER 1, 1998 THROUGH SEPTEMBER 30, 1999 Page: 30 of 44
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The drift is due to the RIEMF across the center conductor and shield, and an
imbalance in the resistive loads (or perhaps the RIEMF itself) of the cable. Figure 2
shows the measured integrator drift as a function of conductor size and type. As expected,
the larger the center conductor and hence the lower the resistance of the cable, the lower
the drift. The integrator demonstrated acceptable levels of drift during the radiation
testing, indicating that the model, and the integrator upgrade concept based on the model,
are acceptable for ITER-class devices.
However, because of the unpredictability of the RIEMF, it is difficult to design coils
for a fusion reactor based on the information we now have. Further understanding of the
RIEMF is needed.G)
C.)1800
1600
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1200
1000
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0* small split _
El 50% split0.25 - A1203 0.25 - MgO 0.5 - MgO
Cable Type0.75 - MgO
Fig. 7-2. Variance of drift by cable type and compensation method.
Fusion Technology Development Annual Report
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7-2 General Atomics Report GA-A23325
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STAFF, PROJECT. ADVANCED FUSION TECHNOLOGY RESEARCH AND DEVELOPMENT ANNUAL REPORT TO THE U.S. DEPARTMENT OF ENERGY OCTOBER 1, 1998 THROUGH SEPTEMBER 30, 1999, report, February 1, 2000; United States. (https://digital.library.unt.edu/ark:/67531/metadc780766/m1/30/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.