Sources

Every number on these pages traces to one of the documents below, either as a value the document prints or as a value the family's repository declares in its place and says so.

Filed sources the device cores anchor on

M. Greenwald, Density limits in toroidal plasmas, Plasma Physics and Controlled Fusion 44, R27 (2002)

Equation 1.3: \(n_G = I_p/(\pi a^2)\) in \(10^{20}\,\mathrm{m^{-3}}\). Verifies the relation the tokamak core already implemented.

Y-K. M. Peng, D. J. Strickler, Features of spherical torus plasmas, Nuclear Fusion 26, 769 (1985)

Regime pairings of aspect ratio and natural elongation; the normalised-current ceiling of about 7 MA/(m T). Neither source prints a machine's absolute dimensions.

R. Paccagnella, Relaxation models for single helical reversed field pinch plasmas, arXiv:1509.07307v2 (2015)

Equations 4–5 and the definitions of \(F\) and \(\Theta\), taken in the single-region limit as the Bessel-function model. Open access. Used by SCPN-RFP-CORE.

NIST DLMF 10.2.2, 10.21; OEIS A115368, A115369

The Bessel functions \(J_0\), \(J_1\) and their first zeros, through the pinned shared kernel library SCPN-Reactor-Kernels.

R. D. Wood et al., Improved operation of the SSPX spheromak, UCRL-JRNL-214703 (2005), OSTI 883741

The flux-conserver eigenvalue 9.9 m⁻¹ of the SSPX conserver, 1 m diameter by 0.5 m high, and the hollow/peaked/relaxed operating rule for \(\lambda_{\mathrm{gun}}/\lambda_{\mathrm{fc}}\).

E. B. Hooper et al., Reactor opportunities for the spheromak (2003), OSTI 15005037

The definition of the Taylor eigenvalue as the lowest homogeneous solution of \(\nabla\times\mathbf{B} = \lambda\mathbf{B}\) in the flux conserver.

PPPL-2257, Verification of the Taylor state in the S-1 spheromak (1985), OSTI 5141825

The inverse-radius scaling of the eigenvalue at fixed shape. The cylindrical eigenvalue's own citation, Turner et al. 1983, is not on file.

Zhu & Wu, arXiv:2607.11908v1 (2026)

Whole-device kinetic model of the Yingguang-1 FRC formation experiment; Table I prints the as-built coil and fill. Used by SCPN-FRC-CORE.

Bala, Zhu, Li et al., arXiv:2204.07978v1 (2022)

Equation 14: the empirical kinetic-scale bound \(S^*/E < 3.5\). Used by SCPN-FRC-CORE.

Advisory-band sources

S. Ortolani, D. D. Schnack, Magnetohydrodynamics of Plasma Relaxation (World Scientific, 1993)

RFP tearing and relaxation fluctuations in the 1–500 kHz scale.

P. M. Bellan, Spheromaks (Imperial College Press, 2000)

Spheromak tilt, shift and relaxation activity in the 1–200 kHz scale.

Governing documents of the group

SCPN Reactor Family Repository Standard

Research-group boundary, canonical project assignments by family, the six evidence-maturity states, scientific artifact custody and the scaffold gate.

Family repository map

Which core owns which SPO configuration: conventional_tokamak, spherical_tokamak, stellarator, heliotron, torsatron, reversed_field_pinch, spheromak, field_reversed_configuration.

Each core's VALIDATION.md and ADR 0005

The evidence record of level-0 device physics: what is exercised, what is printed, what is declared, what is not claimed.