Pith Number

pith:5F44TNLX

pith:2026:5F44TNLX4FGYPUIJUZ72QFFZBB

not attested not anchored not stored refs resolved

Cosmogenic activation in detector materials at shallow depths

Alan Robinson, Ben Loer, Joel Sander, John L. Orrell, Lekhraj Pandey, Manish K. Jha, Richard W. Schnee, Robert Calkins, Sagar S. Poudel

Calculations show multiple competing processes determine cosmogenic isotope production in detector materials at shallow depths.

arxiv:2605.16534 v1 · 2026-05-15 · physics.ins-det · physics.comp-ph

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\usepackage{pith}
\pithnumber{5F44TNLX4FGYPUIJUZ72QFFZBB}

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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

We present a detailed calculation of the production of tritium in Ge and Si, as well as the production of 60Co in Cu, at shallow depths. We also obtain cosmogenic activation suppression factors and tritium production at several shallow-depth sites including the Stanford Underground Facility.

C2weakest assumption

The nuclear reaction cross sections and cosmic-ray particle spectra used in the calculation remain valid when multiple activation channels compete at shallow depths; the paper does not report independent validation of these inputs against new measurements at the relevant energies.

C3one line summary

Calculations of tritium production in Ge/Si and 60Co in Cu at shallow depths with activation suppression factors for sites including SUF.

References

79 extracted · 79 resolved · 1 Pith anchors

[1] as the thickness of the material may be enough to allow the hadronic shower development within the mate- rial itself, while isotope production induced by stopping negative muons is suppressed due to s 2003

[2] tend to populate the low-energy part of the neutron flux spectrum, increasing its softness. In contrast, the > 10 MeV neutron spectrum at sea level is expected to be hard, since the bulk of energetic 1993

[3] The yield is (1.70±0.08stat ±0.10sys)×10−3 per negative muon cap- ture 2003

[4] R. Agnese, A. Anderson, T. Aramaki, I. Arnquist, W. Baker, D. Barker, R. Basu Thakur, D. Bauer, A. Bor- gland, M. Bowles, et al., Projected Sensitivity of the Su- perCDMS SNOLAB experiment, Physical R 2017

[5] The DAMIC experiment at SNOLAB 2018 · arXiv:1805.10001

Receipt and verification

First computed	2026-05-20T00:02:27.866960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e979c9b577e14d87d109a67fa814b9086533a079a334a534a947fd06b694ff4b

Aliases

arxiv: 2605.16534 · arxiv_version: 2605.16534v1 · doi: 10.48550/arxiv.2605.16534 · pith_short_12: 5F44TNLX4FGY · pith_short_16: 5F44TNLX4FGYPUIJ · pith_short_8: 5F44TNLX

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/5F44TNLX4FGYPUIJUZ72QFFZBB \
  | 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: e979c9b577e14d87d109a67fa814b9086533a079a334a534a947fd06b694ff4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7df8bdcc46347dffec52d406dcf7408e390e390718ed99c32c3e671bbb5306e3",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2026-05-15T18:30:37Z",
    "title_canon_sha256": "37418a14513e016860478675673c35703e8a4ae4a838b65f97af767dab114b09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16534",
    "kind": "arxiv",
    "version": 1
  }
}