python.SystemOfUnits Namespace Reference

Variables
float	millimeter = 1.0
	Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration # This software is distributed under the terms of the Apache version 2 licence, # copied verbatim in the file "LICENSE". More...
float	millimeter2 = millimeter * millimeter
float	millimeter3 = millimeter * millimeter * millimeter
float	centimeter = 10.0 * millimeter
float	centimeter2 = centimeter * centimeter
float	centimeter3 = centimeter * centimeter * centimeter
float	meter = 1000.0 * millimeter
float	meter2 = meter * meter
float	meter3 = meter * meter * meter
float	kilometer = 1000.0 * meter
float	kilometer2 = kilometer * kilometer
float	kilometer3 = kilometer * kilometer * kilometer
float	parsec = 3.0856775807e16 * meter
float	micrometer = 1.0e-6 * meter
float	nanometer = 1.0e-9 * meter
float	angstrom = 1.0e-10 * meter
float	fermi = 1.0e-15 * meter
float	barn = 1.0e-28 * meter2
float	millibarn = 1.0e-3 * barn
float	microbarn = 1.0e-6 * barn
float	nanobarn = 1.0e-9 * barn
float	picobarn = 1.0e-12 * barn
float	liter = 1.0e3 * centimeter3
float	L = liter
float	dL = 1.0e-1 * liter
float	cL = 1.0e-2 * liter
float	mL = 1.0e-3 * liter
float	mm = millimeter
float	mm2 = millimeter2
float	mm3 = millimeter3
float	cm = centimeter
float	cm2 = centimeter2
float	cm3 = centimeter3
float	m = meter
float	m2 = meter2
float	m3 = meter3
float	km = kilometer
float	km2 = kilometer2
float	km3 = kilometer3
float	pc = parsec
float	radian = 1.0
float	milliradian = 1.0e-3 * radian
tuple	degree = (3.14159265358979323846 / 180.0) * radian
float	steradian = 1.0
float	rad = radian
float	mrad = milliradian
float	sr = steradian
tuple	deg = degree
float	nanosecond = 1.0
float	second = 1.0e9 * nanosecond
float	millisecond = 1.0e-3 * second
float	microsecond = 1.0e-6 * second
float	picosecond = 1.0e-12 * second
float	femtosecond = 1.0e-15 * second
float	hertz = 1.0 / second
float	kilohertz = 1.0e3 * hertz
float	megahertz = 1.0e6 * hertz
float	ns = nanosecond
float	s = second
float	ms = millisecond
float	us = microsecond
float	ps = picosecond
float	eplus = 1.0
float	e_SI = 1.602176634e-19
float	coulomb = eplus / e_SI
float	megaelectronvolt = 1.0
float	electronvolt = 1.0e-6 * megaelectronvolt
float	kiloelectronvolt = 1.0e-3 * megaelectronvolt
float	gigaelectronvolt = 1.0e3 * megaelectronvolt
float	teraelectronvolt = 1.0e6 * megaelectronvolt
float	petaelectronvolt = 1.0e9 * megaelectronvolt
float	joule = electronvolt / e_SI
float	MeV = megaelectronvolt
float	eV = electronvolt
float	keV = kiloelectronvolt
float	GeV = gigaelectronvolt
float	TeV = teraelectronvolt
float	PeV = petaelectronvolt
float	kilogram = joule * second * second / (meter * meter)
float	gram = 1.0e-3 * kilogram
float	milligram = 1.0e-3 * gram
float	kg = kilogram
float	g = gram
float	mg = milligram
float	watt = joule / second
float	newton = joule / meter
float	hep_pascal = newton / m2
float	pascal = hep_pascal
int	bar = 100000 * pascal
int	atmosphere = 101325 * pascal
float	ampere = coulomb / second
float	milliampere = 1.0e-3 * ampere
float	microampere = 1.0e-6 * ampere
float	nanoampere = 1.0e-9 * ampere
float	megavolt = megaelectronvolt / eplus
float	kilovolt = 1.0e-3 * megavolt
float	volt = 1.0e-6 * megavolt
float	ohm = volt / ampere
float	farad = coulomb / volt
float	millifarad = 1.0e-3 * farad
float	microfarad = 1.0e-6 * farad
float	nanofarad = 1.0e-9 * farad
float	picofarad = 1.0e-12 * farad
float	weber = volt * second
float	tesla = volt * second / meter2
float	gauss = 1.0e-4 * tesla
float	kilogauss = 1.0e-1 * tesla
float	henry = weber / ampere
float	kelvin = 1.0
float	mole = 1.0
float	becquerel = 1.0 / second
float	curie = 3.7e10 * becquerel
float	kilobecquerel = 1.0e3 * becquerel
float	megabecquerel = 1.0e6 * becquerel
float	gigabecquerel = 1.0e9 * becquerel
float	millicurie = 1.0e-3 * curie
float	microcurie = 1.0e-6 * curie
float	Bq = becquerel
float	kBq = kilobecquerel
float	MBq = megabecquerel
float	GBq = gigabecquerel
float	Ci = curie
float	mCi = millicurie
float	uCi = microcurie
float	gray = joule / kilogram
float	kilogray = 1.0e3 * gray
float	milligray = 1.0e-3 * gray
float	microgray = 1.0e-6 * gray
float	candela = 1.0
float	lumen = candela * steradian
float	lux = lumen / meter2
float	perCent = 0.01
float	perThousand = 0.001
float	perMillion = 0.000001

Variable Documentation

ampere

float python.SystemOfUnits.ampere = coulomb / second

Definition at line 212 of file SystemOfUnits.py.

angstrom

float python.SystemOfUnits.angstrom = 1.0e-10 * meter

Definition at line 82 of file SystemOfUnits.py.

atmosphere

int python.SystemOfUnits.atmosphere = 101325 * pascal

Definition at line 207 of file SystemOfUnits.py.

bar

int python.SystemOfUnits.bar = 100000 * pascal

Definition at line 206 of file SystemOfUnits.py.

barn

float python.SystemOfUnits.barn = 1.0e-28 * meter2

Definition at line 85 of file SystemOfUnits.py.

becquerel

float python.SystemOfUnits.becquerel = 1.0 / second

Definition at line 272 of file SystemOfUnits.py.

Bq

float python.SystemOfUnits.Bq = becquerel

Definition at line 279 of file SystemOfUnits.py.

candela

float python.SystemOfUnits.candela = 1.0

Definition at line 298 of file SystemOfUnits.py.

centimeter

float python.SystemOfUnits.centimeter = 10.0 * millimeter

Definition at line 66 of file SystemOfUnits.py.

centimeter2

float python.SystemOfUnits.centimeter2 = centimeter * centimeter

Definition at line 67 of file SystemOfUnits.py.

centimeter3

float python.SystemOfUnits.centimeter3 = centimeter * centimeter * centimeter

Definition at line 68 of file SystemOfUnits.py.

Ci

float python.SystemOfUnits.Ci = curie

Definition at line 283 of file SystemOfUnits.py.

cL

float python.SystemOfUnits.cL = 1.0e-2 * liter

Definition at line 94 of file SystemOfUnits.py.

cm

float python.SystemOfUnits.cm = centimeter

Definition at line 102 of file SystemOfUnits.py.

cm2

float python.SystemOfUnits.cm2 = centimeter2

Definition at line 103 of file SystemOfUnits.py.

cm3

float python.SystemOfUnits.cm3 = centimeter3

Definition at line 104 of file SystemOfUnits.py.

coulomb

float python.SystemOfUnits.coulomb = eplus / e_SI

Definition at line 157 of file SystemOfUnits.py.

curie

float python.SystemOfUnits.curie = 3.7e10 * becquerel

Definition at line 273 of file SystemOfUnits.py.

deg

tuple python.SystemOfUnits.deg = degree

Definition at line 129 of file SystemOfUnits.py.

degree

tuple python.SystemOfUnits.degree = (3.14159265358979323846 / 180.0) * radian

Definition at line 121 of file SystemOfUnits.py.

dL

float python.SystemOfUnits.dL = 1.0e-1 * liter

Definition at line 93 of file SystemOfUnits.py.

e_SI

float python.SystemOfUnits.e_SI = 1.602176634e-19

Definition at line 156 of file SystemOfUnits.py.

electronvolt

float python.SystemOfUnits.electronvolt = 1.0e-6 * megaelectronvolt

Definition at line 163 of file SystemOfUnits.py.

eplus

float python.SystemOfUnits.eplus = 1.0

Definition at line 155 of file SystemOfUnits.py.

eV

float python.SystemOfUnits.eV = electronvolt

Definition at line 173 of file SystemOfUnits.py.

farad

float python.SystemOfUnits.farad = coulomb / volt

Definition at line 234 of file SystemOfUnits.py.

femtosecond

float python.SystemOfUnits.femtosecond = 1.0e-15 * second

Definition at line 139 of file SystemOfUnits.py.

fermi

float python.SystemOfUnits.fermi = 1.0e-15 * meter

Definition at line 83 of file SystemOfUnits.py.

g

float python.SystemOfUnits.g = gram

Definition at line 188 of file SystemOfUnits.py.

gauss

float python.SystemOfUnits.gauss = 1.0e-4 * tesla

Definition at line 250 of file SystemOfUnits.py.

GBq

float python.SystemOfUnits.GBq = gigabecquerel

Definition at line 282 of file SystemOfUnits.py.

GeV

float python.SystemOfUnits.GeV = gigaelectronvolt

Definition at line 175 of file SystemOfUnits.py.

gigabecquerel

float python.SystemOfUnits.gigabecquerel = 1.0e9 * becquerel

Definition at line 276 of file SystemOfUnits.py.

gigaelectronvolt

float python.SystemOfUnits.gigaelectronvolt = 1.0e3 * megaelectronvolt

Definition at line 165 of file SystemOfUnits.py.

gram

float python.SystemOfUnits.gram = 1.0e-3 * kilogram

Definition at line 183 of file SystemOfUnits.py.

gray

float python.SystemOfUnits.gray = joule / kilogram

Definition at line 290 of file SystemOfUnits.py.

henry

float python.SystemOfUnits.henry = weber / ampere

Definition at line 257 of file SystemOfUnits.py.

hep_pascal

float python.SystemOfUnits.hep_pascal = newton / m2

Definition at line 204 of file SystemOfUnits.py.

hertz

float python.SystemOfUnits.hertz = 1.0 / second

Definition at line 141 of file SystemOfUnits.py.

joule

float python.SystemOfUnits.joule = electronvolt / e_SI

Definition at line 169 of file SystemOfUnits.py.

kBq

float python.SystemOfUnits.kBq = kilobecquerel

Definition at line 280 of file SystemOfUnits.py.

kelvin

float python.SystemOfUnits.kelvin = 1.0

Definition at line 262 of file SystemOfUnits.py.

keV

float python.SystemOfUnits.keV = kiloelectronvolt

Definition at line 174 of file SystemOfUnits.py.

kg

float python.SystemOfUnits.kg = kilogram

Definition at line 187 of file SystemOfUnits.py.

kilobecquerel

float python.SystemOfUnits.kilobecquerel = 1.0e3 * becquerel

Definition at line 274 of file SystemOfUnits.py.

kiloelectronvolt

float python.SystemOfUnits.kiloelectronvolt = 1.0e-3 * megaelectronvolt

Definition at line 164 of file SystemOfUnits.py.

kilogauss

float python.SystemOfUnits.kilogauss = 1.0e-1 * tesla

Definition at line 251 of file SystemOfUnits.py.

kilogram

float python.SystemOfUnits.kilogram = joule * second * second / (meter * meter)

Definition at line 182 of file SystemOfUnits.py.

kilogray

float python.SystemOfUnits.kilogray = 1.0e3 * gray

Definition at line 291 of file SystemOfUnits.py.

kilohertz

float python.SystemOfUnits.kilohertz = 1.0e3 * hertz

Definition at line 142 of file SystemOfUnits.py.

kilometer

float python.SystemOfUnits.kilometer = 1000.0 * meter

Definition at line 74 of file SystemOfUnits.py.

kilometer2

float python.SystemOfUnits.kilometer2 = kilometer * kilometer

Definition at line 75 of file SystemOfUnits.py.

kilometer3

float python.SystemOfUnits.kilometer3 = kilometer * kilometer * kilometer

Definition at line 76 of file SystemOfUnits.py.

kilovolt

float python.SystemOfUnits.kilovolt = 1.0e-3 * megavolt

Definition at line 221 of file SystemOfUnits.py.

km

float python.SystemOfUnits.km = kilometer

Definition at line 110 of file SystemOfUnits.py.

km2

float python.SystemOfUnits.km2 = kilometer2

Definition at line 111 of file SystemOfUnits.py.

km3

float python.SystemOfUnits.km3 = kilometer3

Definition at line 112 of file SystemOfUnits.py.

L

float python.SystemOfUnits.L = liter

Definition at line 92 of file SystemOfUnits.py.

liter

float python.SystemOfUnits.liter = 1.0e3 * centimeter3

Definition at line 91 of file SystemOfUnits.py.

lumen

float python.SystemOfUnits.lumen = candela * steradian

Definition at line 303 of file SystemOfUnits.py.

lux

float python.SystemOfUnits.lux = lumen / meter2

Definition at line 308 of file SystemOfUnits.py.

m

float python.SystemOfUnits.m = meter

Definition at line 106 of file SystemOfUnits.py.

m2

float python.SystemOfUnits.m2 = meter2

Definition at line 107 of file SystemOfUnits.py.

m3

float python.SystemOfUnits.m3 = meter3

Definition at line 108 of file SystemOfUnits.py.

MBq

float python.SystemOfUnits.MBq = megabecquerel

Definition at line 281 of file SystemOfUnits.py.

mCi

float python.SystemOfUnits.mCi = millicurie

Definition at line 284 of file SystemOfUnits.py.

megabecquerel

float python.SystemOfUnits.megabecquerel = 1.0e6 * becquerel

Definition at line 275 of file SystemOfUnits.py.

megaelectronvolt

float python.SystemOfUnits.megaelectronvolt = 1.0

Definition at line 162 of file SystemOfUnits.py.

megahertz

float python.SystemOfUnits.megahertz = 1.0e6 * hertz

Definition at line 143 of file SystemOfUnits.py.

megavolt

float python.SystemOfUnits.megavolt = megaelectronvolt / eplus

Definition at line 220 of file SystemOfUnits.py.

meter

float python.SystemOfUnits.meter = 1000.0 * millimeter

Definition at line 70 of file SystemOfUnits.py.

meter2

float python.SystemOfUnits.meter2 = meter * meter

Definition at line 71 of file SystemOfUnits.py.

meter3

float python.SystemOfUnits.meter3 = meter * meter * meter

Definition at line 72 of file SystemOfUnits.py.

MeV

float python.SystemOfUnits.MeV = megaelectronvolt

Definition at line 172 of file SystemOfUnits.py.

mg

float python.SystemOfUnits.mg = milligram

Definition at line 189 of file SystemOfUnits.py.

microampere

float python.SystemOfUnits.microampere = 1.0e-6 * ampere

Definition at line 214 of file SystemOfUnits.py.

microbarn

float python.SystemOfUnits.microbarn = 1.0e-6 * barn

Definition at line 87 of file SystemOfUnits.py.

microcurie

float python.SystemOfUnits.microcurie = 1.0e-6 * curie

Definition at line 278 of file SystemOfUnits.py.

microfarad

float python.SystemOfUnits.microfarad = 1.0e-6 * farad

Definition at line 236 of file SystemOfUnits.py.

microgray

float python.SystemOfUnits.microgray = 1.0e-6 * gray

Definition at line 293 of file SystemOfUnits.py.

micrometer

float python.SystemOfUnits.micrometer = 1.0e-6 * meter

Definition at line 80 of file SystemOfUnits.py.

microsecond

float python.SystemOfUnits.microsecond = 1.0e-6 * second

Definition at line 137 of file SystemOfUnits.py.

milliampere

float python.SystemOfUnits.milliampere = 1.0e-3 * ampere

Definition at line 213 of file SystemOfUnits.py.

millibarn

float python.SystemOfUnits.millibarn = 1.0e-3 * barn

Definition at line 86 of file SystemOfUnits.py.

millicurie

float python.SystemOfUnits.millicurie = 1.0e-3 * curie

Definition at line 277 of file SystemOfUnits.py.

millifarad

float python.SystemOfUnits.millifarad = 1.0e-3 * farad

Definition at line 235 of file SystemOfUnits.py.

milligram

float python.SystemOfUnits.milligram = 1.0e-3 * gram

Definition at line 184 of file SystemOfUnits.py.

milligray

float python.SystemOfUnits.milligray = 1.0e-3 * gray

Definition at line 292 of file SystemOfUnits.py.

millimeter

float python.SystemOfUnits.millimeter = 1.0

Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration # This software is distributed under the terms of the Apache version 2 licence, # copied verbatim in the file "LICENSE".

# # In applying this licence, CERN does not waive the privileges and immunities # granted to it by virtue of its status as an Intergovernmental Organization # or submit itself to any jurisdiction. #

File: AthenaCommon/share/SystemOfUnits.py Author: Wim Lavrijsen (LBNL, WLavr.nosp@m.ijse.nosp@m.n@lbl.nosp@m..gov) Created: 01/21/04 Last: 06/20/25

Definition at line 62 of file SystemOfUnits.py.

millimeter2

float python.SystemOfUnits.millimeter2 = millimeter * millimeter

Definition at line 63 of file SystemOfUnits.py.

millimeter3

float python.SystemOfUnits.millimeter3 = millimeter * millimeter * millimeter

Definition at line 64 of file SystemOfUnits.py.

milliradian

float python.SystemOfUnits.milliradian = 1.0e-3 * radian

Definition at line 120 of file SystemOfUnits.py.

millisecond

float python.SystemOfUnits.millisecond = 1.0e-3 * second

Definition at line 136 of file SystemOfUnits.py.

mL

float python.SystemOfUnits.mL = 1.0e-3 * liter

Definition at line 95 of file SystemOfUnits.py.

mm

float python.SystemOfUnits.mm = millimeter

Definition at line 98 of file SystemOfUnits.py.

mm2

float python.SystemOfUnits.mm2 = millimeter2

Definition at line 99 of file SystemOfUnits.py.

mm3

float python.SystemOfUnits.mm3 = millimeter3

Definition at line 100 of file SystemOfUnits.py.

mole

float python.SystemOfUnits.mole = 1.0

Definition at line 267 of file SystemOfUnits.py.

mrad

float python.SystemOfUnits.mrad = milliradian

Definition at line 127 of file SystemOfUnits.py.

ms

float python.SystemOfUnits.ms = millisecond

Definition at line 148 of file SystemOfUnits.py.

nanoampere

float python.SystemOfUnits.nanoampere = 1.0e-9 * ampere

Definition at line 215 of file SystemOfUnits.py.

nanobarn

float python.SystemOfUnits.nanobarn = 1.0e-9 * barn

Definition at line 88 of file SystemOfUnits.py.

nanofarad

float python.SystemOfUnits.nanofarad = 1.0e-9 * farad

Definition at line 237 of file SystemOfUnits.py.

nanometer

float python.SystemOfUnits.nanometer = 1.0e-9 * meter

Definition at line 81 of file SystemOfUnits.py.

nanosecond

float python.SystemOfUnits.nanosecond = 1.0

Definition at line 134 of file SystemOfUnits.py.

newton

float python.SystemOfUnits.newton = joule / meter

Definition at line 199 of file SystemOfUnits.py.

ns

float python.SystemOfUnits.ns = nanosecond

Definition at line 146 of file SystemOfUnits.py.

ohm

float python.SystemOfUnits.ohm = volt / ampere

Definition at line 228 of file SystemOfUnits.py.

parsec

float python.SystemOfUnits.parsec = 3.0856775807e16 * meter

Definition at line 78 of file SystemOfUnits.py.

pascal

float python.SystemOfUnits.pascal = hep_pascal

Definition at line 205 of file SystemOfUnits.py.

pc

float python.SystemOfUnits.pc = parsec

Definition at line 114 of file SystemOfUnits.py.

perCent

float python.SystemOfUnits.perCent = 0.01

Definition at line 313 of file SystemOfUnits.py.

perMillion

float python.SystemOfUnits.perMillion = 0.000001

Definition at line 315 of file SystemOfUnits.py.

perThousand

float python.SystemOfUnits.perThousand = 0.001

Definition at line 314 of file SystemOfUnits.py.

petaelectronvolt

float python.SystemOfUnits.petaelectronvolt = 1.0e9 * megaelectronvolt

Definition at line 167 of file SystemOfUnits.py.

PeV

float python.SystemOfUnits.PeV = petaelectronvolt

Definition at line 177 of file SystemOfUnits.py.

picobarn

float python.SystemOfUnits.picobarn = 1.0e-12 * barn

Definition at line 89 of file SystemOfUnits.py.

picofarad

float python.SystemOfUnits.picofarad = 1.0e-12 * farad

Definition at line 238 of file SystemOfUnits.py.

picosecond

float python.SystemOfUnits.picosecond = 1.0e-12 * second

Definition at line 138 of file SystemOfUnits.py.

ps

float python.SystemOfUnits.ps = picosecond

Definition at line 150 of file SystemOfUnits.py.

rad

float python.SystemOfUnits.rad = radian

Definition at line 126 of file SystemOfUnits.py.

radian

float python.SystemOfUnits.radian = 1.0

Definition at line 119 of file SystemOfUnits.py.

s

float python.SystemOfUnits.s = second

Definition at line 147 of file SystemOfUnits.py.

second

float python.SystemOfUnits.second = 1.0e9 * nanosecond

Definition at line 135 of file SystemOfUnits.py.

sr

float python.SystemOfUnits.sr = steradian

Definition at line 128 of file SystemOfUnits.py.

steradian

float python.SystemOfUnits.steradian = 1.0

Definition at line 123 of file SystemOfUnits.py.

teraelectronvolt

float python.SystemOfUnits.teraelectronvolt = 1.0e6 * megaelectronvolt

Definition at line 166 of file SystemOfUnits.py.

tesla

float python.SystemOfUnits.tesla = volt * second / meter2

Definition at line 248 of file SystemOfUnits.py.

TeV

float python.SystemOfUnits.TeV = teraelectronvolt

Definition at line 176 of file SystemOfUnits.py.

uCi

float python.SystemOfUnits.uCi = microcurie

Definition at line 285 of file SystemOfUnits.py.

us

float python.SystemOfUnits.us = microsecond

Definition at line 149 of file SystemOfUnits.py.

volt

float python.SystemOfUnits.volt = 1.0e-6 * megavolt

Definition at line 222 of file SystemOfUnits.py.

watt

float python.SystemOfUnits.watt = joule / second

Definition at line 194 of file SystemOfUnits.py.

weber

float python.SystemOfUnits.weber = volt * second

Definition at line 243 of file SystemOfUnits.py.