Speaker
Description
The precision of the Stretched Wire Alignment Technique for determining the magnetic center of the Scorpius Accelerator Cell solenoids in reference to their geometrical axes is critically impacted by the selection of various experimental parameters. This work presents an experimental optimization of key SWAT parameters to minimize measurement errors using the Entry Transport Region-prototype solenoid to emulate the solenoid characteristics of Scorpius Accelerator. On a dedicated test stand, we varied the solenoid current, copper test wire gauge, stretched wire tension weight, and the scanning ranges. We performed 80 experiments. In each scan the wire deflections before and after the current pulse were measured by two precision micrometers at 36 different locations set by the scanning pattern. For each set of parameters, the experiment was repeated four times. The result was determined as the average of these four experiments, while the standard deviation was used as figure of merit for the overall system precision. The optimization revealed a clear optimal operating point. Variation of the scanning pattern amplitude was found to have a minimal influence on the results. By implementing these optimized parameters, both the measurement error and result reproducibility were improved. Our findings provide a set of parameters to find the magnetic center with necessary precision, which is critical for meeting the stringent alignment tolerances required for the Scorpius accelerator.
Funding Agency
This work was done by Mission Support and Test Services, LLC, under Contract No. DE-NA0003624 with the U.S. Department of Energy and the National Nuclear Security Administration. DOE/NV/03624--2375.
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| Supervisor's name | Piotr Wiewior |
| Supervisor's email | wiewiopp@nv.doe.gov |
| Paper submission software | MSWord |