Encyclopedia

Radioisotope iodine-131


Radioisotope iodine-131 is the most common radioactive isotope of iodine formed during uranium fission in atomic reactors. The half-life period is 8.04 days. It belongs to group B of radiation danger. It accumulates in the thyroid gland (critical organ). It is a beta and gamma emitter. Photon energy: 0.72, 0.63, 0.36, 0.03 MeV. Beta radiation energy: 0.248, 0.304, 0.334, 0.607, 0.630, 0.807 MeV. Permissible volumetric activity DOA in atmospheric air is 18.0 Bq/m³ (4.86 - 13 Ki/l), permissible specific activity DUA in water is 57.0 Bq/kg (1.54 - 9 Ki/kg)

Source: "RULES FOR ENSURING SANITARY AND HYGIENIC REGIMES DURING CONSTRUCTION AND OPERATION OF THERMAL ENERGY COMPLEX OBJECTS IN CONDITIONS OF RADIOACTIVE CONTAMINATION OF THE AREA"

(approved by the Ministry of Energy of Russia 20.11.96)

Морфология

Род

Понятие «радионуклид йод-131» мужского рода.

Склонение и число

Падеж Единственное число Множественное число
Р радионуклида йод-131 радионуклидов йод-131
Д радионуклиду йод-131 радионуклидам йод-131
В радионуклид йод-131 радионуклиды йод-131
Т радионуклидом йод-131 радионуклидами йод-131
П радионуклиде йод-131 радионуклидах йод-131
Laws with commentary

Codes and federal laws