Abstract
We present an application of the Portable Diagnostic Package (PDP) on the Wisconsin High-temperature-superconducting Axisymmetric Mirror (WHAM), which integrates an optical emission spectroscopy (OES) system and an active Thomson scattering (TS) system. The OES system facilitates a comprehensive impurity line survey and enables flow measurements through the Doppler effect observed on impurity lines. Plasma rotation profiles were successfully derived from doubly charged carbon lines. The TS system enabled the first measurements of the electron temperature in commissioning plasmas on WHAM. Notably, the PDP was installed, commissioned, and used to obtain OES and TS data within ∼6 months from project start, enabled by its designed portability and standardized interfaces. These results demonstrate the PDP’s potential to accelerate diagnostic readiness and advance experimental plasma studies.
| Original language | English |
|---|---|
| Article number | 115128 |
| Journal | AIP Advances |
| Volume | 15 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 1 2025 |
Funding
This work was supported by U.S. D.O.E Contract No. DE-AC05-00OR22725 and funded under the INFUSE program–a DOE SC FES public-private partnership–under CRADA Grant No. NFE-24-10027 between the Oak Ridge National Laboratory and Realta Fusion Inc. Notice: This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the US Department of Energy (DOE). The U.S. government retains and the publisher, by accepting the article for publication, acknowledges that the U.S. government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for U.S. government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ). This work was supported by U.S. D.O.E Contract No. DE-AC05-00OR22725 and funded under the INFUSE program–a DOESC FES public-private partnership–under CRADA Grant No. NFE-24-10027 between the Oak Ridge National Laboratory and RealtaFusion Inc. Notice: This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the US Department of Energy (DOE). The U.S. government retains andthe publisher, by accepting the article for publication, acknowledgesthat the U.S. government retains a nonexclusive, paid-up, irrevoca-ble, worldwide license to publish or reproduce the published formof this manuscript, or allow others to do so, for U.S. governmentpurposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan(http://energy.gov/downloads/doe-public-access-plan).
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