Units of Exposure - Maple Programming Help

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Units of Exposure

 

Description

Examples

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

convertroentgen,dimensions,base=true

electric_currentradiationtimeradiationmass

(1)

convert1,units,roentgen,Cradiationkg

129500000

(2)

When the standard or natural modes for combining units are selected, Maple by default requires the correct annotation to the unit coulomb, as in the previous example. In the default simple mode, this is not required.

convert1,units,roentgen,Ckg

129500000

(3)

UnitsUseModestandard

simple

(4)

convert1,units,roentgen,Ckg

Error, (in `convert/units`) unable to convert `R` to `C/kg`

convert1,units,roentgen,Cradiationkg

129500000

(5)

convert1,units,roentgen,Ckg,symbolic

129500000

(6)

See Also

convert/dimensions

convert/units

Units

Units/electric_charge

Units/Index

Units/mass