Roentgen definition

Roentgen means the special unit of exposure. One roentgen (R) equals 2.58 × 10-4 coulombs/kilogram of air (see “Exposure” and 38.4(4)).

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Roentgen. (R) means the special unit of exposure. One roentgen equals 2.58 x 10-4 coulombs/kilogram of air.

Roentgen or “R” means the special unit of exposure. One roentgen equals 2.58E−4 coulombs per kilogram of air.

Examples of Roentgen in a sentence

Marshall Space Flight Center (MSFC) Space Research Institute (IKI), Russian Academy of Sciences (RAS) Russia (UR) Space Research Institute of the Russian Academy of Sciences (IKI) re Cooperation on the ART- XC Instrument Onboard the Russian Spectrum Roentgen Mission (SPG) Project-Specific Agreement (PSA) NASA will provide four mirror modules for portions of science data from the Russian Instrument.
Marshall Space Flight Center (MSFC) Space Research Institute (IKI), Russian Academy of Sciences (RAS) Russia (UR) Space Research Institute of the Russian Academy of Sciences (IKI) re Cooperation on the ART- XC Instrument Onboard the Russian Sprectum Roentgen Mission (SPG) Cooperative Agreement NASA will provide four mirror modules for portions of science data from the Russian Instrument.
REM: Roentgen Equivalent Man is a measurement that correlates the dose of any radiation to the biological effect of that radiation.
Roentgen stereophotogrammetric analysis (RSA) can be used to accurately assess the migration of the components and gives an indication about the quality of component fixation (▇▇▇▇▇▇ et al., 1992; ▇▇▇▇▇▇▇ et al., 1986; ▇▇▇ et al., 1995).
Marshall Space Flight Center (MSFC) Space Research Institute (IKI), Russian Academy of Sciences (RAS) Russia (UR) Reimbursable Agmt betw NASA and IKI for Design, Development, Fabrication, and Testing of X-ray Optics for the ART-XC Instrument onboard the Russian Spectrum Roentgen Gamma (SRG-SXG) Mission Reimbursable Agreement NASA will deliver mirror modules 22 months after the first payment.

More Definitions of Roentgen

Roentgen. (R) means the special unit of EXPOSURE. One roentgen equals 2.58 x 10 to the -4 power coulombs per kilogram of air. See EXPOSURE.

Roentgen means the special unit of exposure. One roentgen (R) equals 2.58E-4 coulombs per kilogram of air (see "Exposure" and 12VAC5-481-240).

Roentgen means the amount of gamma or x-rays required to produce ions resulting in a charge of 0.000258 coulombs per kilogram of air under standard conditions.

Roentgen means the special unit of exposure. One roentgen (R) equals 2.58E-4 coulomb per kilogram of air (see "Exposure" and 1.1.15).

Roentgen means the special unit of exposure. One roentgen (R) equals 2.58E-4 coulombs per kilogram of air [See "Exposure" and 420-3-26-.03(13)].

Roentgen. (R) means the special unit of exposure and is equal to the quantity of x or gamma radiation which causes ionization in air equal to 258 microcoulomb per kilogram (see “Exposure”).

Roentgen means the special unit of exposure. One roentgen (R) equals 2.58 x 10-4 coulombs per kilogram (C/kg). (See "Exposure" and Section 310.140 of this Part.)