Pith Number

pith:2PPZARHU

pith:2026:2PPZARHUTFVIQZCPMQE2U4N5FK

not attested not anchored not stored refs resolved

Re-acceleration of Energetic Ions via Small-Scale Reconnection in Magnetic Fusion Plasmas

Ao Wang, Cong Zhang, Di Luo, Dong Guo, Hanqing Wang, Huibo Tang, Jia Li, Kai Huang, Lei Han, Linge Zang, Minsheng Liu, Shaodong Song, Xuxu Zhang, Yanchao Li, Yihang Zhao, Yuejiang Shi, Yunfeng Liang, Zhenxing Wang

Small-scale magnetic reconnection re-accelerates NBI ions to 2.5 times injection energy without large MHD bursts.

arxiv:2605.15485 v1 · 2026-05-15 · physics.plasm-ph

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\usepackage{pith}
\pithnumber{2PPZARHUTFVIQZCPMQE2U4N5FK}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Simulations based on EXL-50U parameters indicate that small-scale magnetic reconnection, mediated by multiple magnetic islands, fails to accelerate bulk thermal ions but efficiently energizes seed fast ions, reaching up to 2.5 times the injection energy without significant large-scale MHD bursts.

C2weakest assumption

The observed energy increase in the experiment is produced by the small-scale reconnection process identified in the simulations rather than by other unmodeled mechanisms or diagnostic artifacts; the simulations are assumed to capture the relevant physics when scaled to EXL-50U parameters.

C3one line summary

Small-scale reconnection via multiple magnetic islands re-accelerates seed fast ions to higher energies while leaving bulk thermal ions unaffected, as observed and simulated on EXL-50U.

References

18 extracted · 18 resolved · 0 Pith anchors

[1] Fisch N J and Rax J M, Interaction of energetic alpha particles with intense lower hybrid waves, Phys Rev Lett 69, 612 (1992) 1992

[2] Herrmann M C and Fisch N J, Cooling Energetic α Particles in a Tokamak with Waves, Phys Rev Lett 79, 1495 (1997) 1997

[3] Fisch N J and Herrmann M C, A tutorial on α-channelling, Plasma Phys Control Fusion 41, A221 (1999) 1999

[4] Ochs I E and Fisch N J, Nonresonant Diffusion in Alpha Channeling, Phys Rev Lett 127, 025003 (2021) 2021

[5] Gryaznevich M and Sykes A, Merging -compression formation of high temperature tokamak plasma, Nucl Fusion 57, 072002 (2017) 2017

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:01:01.141396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3df9044f4996a88644f6409aa71bd2a92638ade5f4b86fcdb157c5be978af2f

Aliases

arxiv: 2605.15485 · arxiv_version: 2605.15485v1 · doi: 10.48550/arxiv.2605.15485 · pith_short_12: 2PPZARHUTFVI · pith_short_16: 2PPZARHUTFVIQZCP · pith_short_8: 2PPZARHU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2PPZARHUTFVIQZCPMQE2U4N5FK \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d3df9044f4996a88644f6409aa71bd2a92638ade5f4b86fcdb157c5be978af2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ee9a13e79ec29af9cc893ed9698fdd4f87e8937706c3e1e40a55e0b1785ee88",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2026-05-15T00:04:04Z",
    "title_canon_sha256": "aa97297ba40453f19ff6496b37d5f96a4d911fc043d551192bbe9144dd2f2dac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15485",
    "kind": "arxiv",
    "version": 1
  }
}