# roentgen (Q321017)

| Property ID | Property | Value | Value entity | Amount | Unit | Date / from | Until | Rank | Sources |
| --- | --- | --- | --- | ---: | --- | --- | --- | --- | --- |
| P138 | Named after | Wilhelm Röntgen | Q35149 |  |  |  |  | normal |  |
| P111 | Measured physical quantity | exposure | Q336938 |  |  |  |  | normal |  |
| P111 | Measured physical quantity | ion dose | Q15149637 |  |  |  |  | normal |  |
| P31 | Instance of | unit of exposure | Q126888404 |  |  |  |  | normal |  |
| P31 | Instance of | UCUM derived unit | Q82047057 |  |  |  |  | normal |  |
| P5061 | Unit symbol | R |  |  |  |  |  | normal |  |
| P2370 | Conversion to SI unit | 0.000258 coulomb per kilogram |  | 0.000258 | coulomb per kilogram |  |  | normal |  |
| P1889 | Different from | Roentgen equivalent man | Q260126 |  |  |  |  | normal |  |
| P7666 | Article ID in the Lithuanian Universal Encyclopedia Online | rentgenas |  |  |  |  |  | normal | https://www.vle.lt/straipsnis/rentgenas/ |
| P1417 | Encyclopædia Britannica Online ID | science/roentgen |  |  |  |  |  | normal | https://www.britannica.com/science/roentgen |
| P14541 | Encyclopedia of China (Third Edition) ID (2026) | 1FMIU0 |  |  |  |  |  | normal | https://www.zgbk.com/ecph/words?SiteID=1&ID=1FMIU0 |
| P10565 | Encyclopedia of China (Third Edition) old ID (2021) | 75039 |  |  |  |  |  | normal | https://web.archive.org/web/0/https://www.zgbk.com/ecph/words?SiteID=1&ID=75039 |
| P646 | Freebase ID | /m/014ffw |  |  |  |  |  | normal | https://www.google.com/search?kgmid=/m/014ffw |
| P4342 | Great Norwegian Encyclopedia ID | røntgen |  |  |  |  |  | normal | https://wikidata-externalid-url.toolforge.org/?p=4342&url_prefix=https://snl.no/&id=r%C3%B8ntgen |
| P8855 | IEV number | 881-12-31 |  |  |  |  |  | normal | https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=881-12-31 |
| P4732 | IUPAC Gold Book ID | R05404 |  |  |  |  |  | normal | https://goldbook.iupac.org/terms/view/R05404 |
| P6366 | Microsoft Academic ID (discontinued) | 193544012 |  |  |  |  |  | normal | https://web.archive.org/web/https://academic.microsoft.com/v2/detail/193544012 |
| P7305 | Online PWN Encyclopedia ID | 3965067 |  |  |  |  |  | normal | https://web.archive.org/web/2/https://encyklopedia.pwn.pl/haslo/;3965067.html |
| P8769 | Ontology of units of Measure 2.0 unit ID | röntgen |  |  |  |  |  | normal | http://www.ontology-of-units-of-measure.org/resource/om-2/r%C3%B6ntgen |
| P10283 | OpenAlex ID | C193544012 |  |  |  |  |  | normal | https://openalex.org/C193544012 |
| P13625 | QUDT dimension ID | A0E1L0I0M-1H0T1D0 |  |  |  |  |  | normal | http://qudt.org/vocab/dimensionvector/A0E1L0I0M-1H0T1D0 |
| P2968 | QUDT unit ID | R |  |  |  |  |  | normal | https://qudt.org/vocab/unit/R |
| P10376 | ScienceDirect topic ID | engineering/roentgen-r |  |  |  |  |  | normal | https://www.sciencedirect.com/topics/engineering/roentgen-r |
| P7825 | UCUM code | R |  |  |  |  |  | normal |  |
| P6512 | UN/CEFACT Common Code | 2C |  |  |  |  |  | normal |  |
| P7007 | Wolfram Language unit code | "Roentgens" |  |  |  |  |  | normal |  |

Source: https://aidb.si/e/roentgen-Q321017 — Wikidata (CC0) via AIDb

