roentgen equivalent man

Unit name: roentgen equivalent man
Latin symbol: rem
Display symbol: rem

Description: The "roentgen equivalent man" (rem) is a unit used in radioprotection meant to represent a dose of any ionizing radiation comparable in effect to one roentgen of high-voltage x-radiation, taken to be equal to 10⁻² Sv using the 1967 SI units.

The rem unit appears in the International System of Units (SI), 4th ed. (1981) defined as "1 rem = 1 cSv = 10⁻² Sv" with the footnote: "The rem is a special unit used in radioprotection to express the equivalent dose."

{
    "$id": "https://schemas.optimade.org/defs/v1.2/units/si/1981/temporary/rem",
    "$schema": "https://schemas.optimade.org/meta/v1.2/optimade/physical_unit_definition.json",
    "title": "roentgen equivalent man",
    "symbol": "rem",
    "display-symbol": "rem",
    "description": "The \"roentgen equivalent man\" (rem) is a unit used in radioprotection meant to represent a dose of any ionizing radiation comparable in effect to one roentgen of high-voltage x-radiation, taken to be equal to 10\u207b\u00b2 Sv using the 1967 SI units.\n\nThe rem unit appears in the International System of Units (SI), 4th ed. (1981) defined as \"1 rem = 1 cSv = 10\u207b\u00b2 Sv\" with the footnote: \"The rem is a special unit used in radioprotection to express the equivalent dose.\"",
    "resources": [
        {
            "relation": "Definition in the International System of Units (SI), 4th Edition",
            "resource-id": "https://www.bipm.org/en/publications/si-brochure"
        },
        {
            "relation": "Wikipedia article describing the unit",
            "resource-id": "https://en.wikipedia.org/wiki/Roentgen_equivalent_man"
        }
    ],
    "defining-relation": {
        "base-units": [
            {
                "symbol": "kg",
                "id": "https://schemas.optimade.org/defs/v1.2/units/si/1960/base/kilogram"
            },
            {
                "symbol": "m",
                "id": "https://schemas.optimade.org/defs/v1.2/units/si/1960/base/metre"
            },
            {
                "symbol": "s",
                "id": "https://schemas.optimade.org/defs/v1.2/units/si/1967/base/second"
            }
        ],
        "base-units-expression": "kg*m^2*s^-2",
        "scale": {
            "exponent": -2
        }
    },
    "x-optimade-definition": {
        "label": "rem_si_1981_temporary",
        "kind": "unit",
        "format": "1.2",
        "version": "1.2.0",
        "name": "rem"
    }
}

roentgen equivalent man, rem (unit)