Units of Exposure - Maple Help

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Units of Exposure

Description

 • Exposure has the dimension radiation per mass. The SI composite unit of exposure is the coulomb of radiation per kilogram.
 • Maple knows the units of exposure listed in the following table.

 Name Symbols Context Alternate Spellings Prefixes roentgen R SI * roentgens SI

 An asterisk ( * ) indicates the default context, an at sign (@) indicates an abbreviation, and under the prefixes column, SI indicates that the unit takes all SI prefixes, IEC indicates that the unit takes IEC prefixes, and SI+ and SI- indicate that the unit takes only positive and negative SI prefixes, respectively.  Refer to a unit in the Units package by indexing the name or symbol with the context, for example, roentgen[SI] or R[SI]; or, if the context is indicated as the default, by using only the unit name or symbol, for example, roentgen or R.
 The unit of exposure is defined as follows.
 A roentgen is defined as $0.000258$ coulomb of radiation per kilogram.

Examples

 > $\mathrm{convert}\left('\mathrm{roentgen}','\mathrm{dimensions}','\mathrm{base}'=\mathrm{true}\right)$
 $\frac{{\mathrm{electric_current}}{}\left({\mathrm{radiation}}\right){}{\mathrm{time}}{}\left({\mathrm{radiation}}\right)}{{\mathrm{mass}}}$ (1)
 > $\mathrm{convert}\left(1,'\mathrm{units}','\mathrm{roentgen}',\frac{'C\left(\mathrm{radiation}\right)'}{'\mathrm{kg}'}\right)$
 $\frac{{129}}{{500000}}$ (2)
 > $\mathrm{convert}\left(1,'\mathrm{units}','\mathrm{roentgen}',\frac{'C'}{'\mathrm{kg}'}\right)$
 > $\mathrm{convert}\left(1,'\mathrm{units}','\mathrm{roentgen}',\frac{'C'}{'\mathrm{kg}'},'\mathrm{symbolic}'\right)$
 $\frac{{129}}{{500000}}$ (3)

 See Also

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