What are some examples of radiation units?

Radiation unit

Various units are used to express the intensity or amount of radiation depending on the type being measured.

Some examples of radiation units

• Curie(Ci) and Becquerrel (Bq)

Curie and Bequerrel are units expressed to express activeness, namely the amount of disintegration (decay) in units of time. In the SI system of units, activity is expressed in Bq. One Bq is equal to one disintegration per second.

1Bq = 1 dps

dps = disintegration per second

Another unit that is also commonly used is the Curie. One Ci is the activity equivalent of 1 gram of radium salt, which is 3,7.10¹⁰ dps.

1Ci = 3,7.10¹⁰ dps = 3,7.10¹⁰ Bq

• Gray (gy) and Rad (Rd)

Gray and Rad are units used to express activity, namely the amount (dose) of radiation absorbed by a material. Rad stands for 11 radiation absorbed dose. In the SI system of units, the dose is expressed in Gray (Gy). One Gray is the absorption of 1 joule per kilogram of matter. 1 Gy = 1 J / kg One rad is the absorption of 10-3 joules of energy / gram of tissue.

1 Rd = 10-3 J / g

Gray's relationship with Fad

1 Gy = 100 rd 3.

• Rem

The destructive power of radioactive rays depends not only on the dose but also on the type of radiation itself. Neutrons, for example, are more dangerous than beta rays of the same dose and intensity.

Rem is a unit of dose after calculating the effect of radiation on living things (rem stands for radiation equivalent for man).