Final answer:
To convert 47 roentgens to grays, assuming 1 roentgen approximates 1 rad for X-rays in air, we convert 47 rads to grays by dividing by 100, giving an absorbed dose of approximately 0.47 Gy.
This conversion underscores the significance of distinguishing different radiation measurement units.
Step-by-step explanation:
The question appears to ask about the conversion from roentgens (X) to grays (K) at a specific exposure level. Since 1 rad is equal to 0.01 J/kg, and 1 gray (Gy) is defined as 1 J/kg, which is also equal to 100 rad, we can convert the given dose in roentgens to grays.
t directly convert to grays or rads which measure absorbed dose. If we consider the radiation exposure that leads to energy absorption, assuming that 1 roentgen roughly equates to 1 rad for X-rays and gamma rays in air, then at an exposure of 47 roentgens, the absorbed dose would roughly be 47 rads.
To find the value in grays (K), we would convert the rads to grays by dividing by 100, resulting in approximately 0.47 Gy.
This illustrates the importance of understanding different units of radiation measurement and the context in which they are applicable, such as tissue exposure vs. absorbed dose.