half-value thickness

thickness of an attenuating layer which reduces the value of a quantity to half of its initial value
Thing general Q127526
half-value thickness
United States. Department of Agriculture · Public Domain · Wikimedia
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half-value thickness

Summary

half-value thickness ranks in the top 2% of general entities by monthly Wikipedia readership (63 views/month).[1]

Key Facts

  • half-value thickness's image is recorded as Half thickness, extracted from USDA radiological training manual for inservice training (1960).jpg[2].
  • half-value thickness's subclass of is recorded as thickness[3].
  • half-value thickness's Freebase ID is recorded as /m/0fzg9j[4].
  • half-value thickness's described by source is recorded as ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics[5].
  • half-value thickness's short name is recorded as {'lang': 'en', 'text': 'HVТ'}[6].
  • half-value thickness's short name is recorded as {'lang': 'en', 'text': 'HVL'}[7].
  • half-value thickness's Google Knowledge Graph ID is recorded as /g/122xk_m1[8].
  • half-value thickness's ISQ dimension is recorded as \mathsf{L}[9].
  • half-value thickness's Microsoft Academic ID is recorded as 2775904910[10].
  • half-value thickness's Wolfram Language quantity ID is recorded as HalfValueThickness[11].
  • half-value thickness's quantity symbol is recorded as d_{1/2}[12].
  • half-value thickness's recommended unit of measurement is recorded as metre[13].
  • half-value thickness's QUDT quantity kind ID is recorded as Half-ValueThickness[14].
  • half-value thickness's IEV number is recorded as 881-04-34[15].
  • half-value thickness's OpenAlex ID is recorded as C2775904910[16].
  • half-value thickness's QUDT dimension ID is recorded as A0E0L1I0M0H0T0D0[17].

Why It Matters

half-value thickness ranks in the top 2% of general entities by monthly Wikipedia readership (63 views/month).[1] It has Wikipedia articles in 9 language editions, a strong signal of global cultural recognition.[18] It is known by 4 alternative names across languages and contexts.[19]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . Freebase Data Dumps. wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics. wikidata.org.
  12. [13] ↑ . ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics. wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.
  16. [17] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [18] ↑ . Wikidata sitelinks. wikidata.org.
  3. [19] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). half-value thickness. Retrieved October 5, 2026, from https://4ort.xyz/entity/half-value-thickness
MLA “half-value thickness.” 4ort.xyz Knowledge Graph, 4ort.xyz, 5 Oct. 2026, https://4ort.xyz/entity/half-value-thickness.
BibTeX @misc{4ortxyz_half-value-thickness_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{half-value thickness}}, year = {2026}, url = {https://4ort.xyz/entity/half-value-thickness}, note = {Accessed: 2026-10-05}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): half-value thickness — https://4ort.xyz/entity/half-value-thickness (retrieved 2026-10-05)

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