Pith Number

pith:JF7DOBYD

pith:2026:JF7DOBYDL74IZOYYZIYYQZLG3O

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Quantifying Multidimensional Transport Effects on Permeability Inference in FLiBe Systems Using a Validation-Informed Modeling Framework

Abhishek Saraswat, Chirag Khurana, Ethan Peterson, Huihua Yang, James Dark, Kaelyn Dunnell, Kevin Woller, Remi Delaporte-Mathurin, Weiyue Zhou

Permeability values for FLiBe inferred from permeation experiments vary widely depending on whether the vessel is treated as coated or uncoated.

arxiv:2605.12750 v1 · 2026-05-12 · physics.comp-ph · physics.plasm-ph

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Claims

C1strongest claim

The inferred FLiBe permeability exhibits consistent Arrhenius behavior but spans a range that depends strongly on the assumed boundary conditions, demonstrating that using one-dimensional formulations to describe a permeation experiment may not be adequate to extract accurate permeability.

C2weakest assumption

The two limiting external boundary conditions (ideal coating and uncoated vessel) sufficiently bound the real hydrogen isotope exchange behavior in the HYPERION experimental setup.

C3one line summary

A validation-informed multi-domain model reveals that FLiBe permeability inferred from permeation fluxes depends strongly on boundary condition assumptions, indicating one-dimensional formulations may be inadequate.

References

27 extracted · 27 resolved · 0 Pith anchors

[1] M. Kovari, M. Coleman, I. Cristescu, and R. Smith. Tritium resources available for fusion reactors.Nu- clear Fusion, 58:026010, 2017 2017

[2] Advancing tritium self-sufficiency in fusion power plants: insights from the baby exper- iment.Nuclear Fusion, 65(2):026037, 2025 2025

[3] T. Ihli, T.K. Basu, L.M. Giancarli, S. Konishi, S. Malang, F. Najmabadi, S. Nishio, A.R. Raffray, C.V.S. Rao, A. Sagara, and Y. Wu. Review of blan- ket designs for advanced fusion reactors.Fusion En- 2008

[4] Sara E. Ferry, Kevin B. Woller, Ethan E. Peterson, Caroline Sorensen, and Dennis G. Whyte. The libra experiment: Investigatingrobusttritiumaccountancy in molten flibe exposed to a d-t fusion neutron s 2022

[5] M. E. Sawan, S. Malang, C. P. C. Wong, and M. Z. Youssef. Neutronics assessment of molten salt breed- ing blanket design options.Fusion Science and Tech- nology, pages 510–517, 2017 2017

Receipt and verification

First computed	2026-05-18T03:09:48.845299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

497e3707035ff88cbb18ca31886566dbbc3b3d87eb7875475840aa2f02e97b72

Aliases

arxiv: 2605.12750 · arxiv_version: 2605.12750v1 · doi: 10.48550/arxiv.2605.12750 · pith_short_12: JF7DOBYDL74I · pith_short_16: JF7DOBYDL74IZOYY · pith_short_8: JF7DOBYD

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/JF7DOBYDL74IZOYYZIYYQZLG3O \
  | 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: 497e3707035ff88cbb18ca31886566dbbc3b3d87eb7875475840aa2f02e97b72

Canonical record JSON

{
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    "cross_cats_sorted": [
      "physics.plasm-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2026-05-12T21:02:05Z",
    "title_canon_sha256": "f293784b8e515bff2b5a4b8eb8db0b6043990f4a4a668f22fa3f220a4c78fb8c"
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  "source": {
    "id": "2605.12750",
    "kind": "arxiv",
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}