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keisanHigh-precision calculations for everyday life and work

Radioactivity

TOP/Environment/Radioactivity
ライブラリ名概要
Half-life of radioactive elementsThis tool calculates the remaining quantity based on the half-life of radioactive elements and displays the results in a graph.
Effective half-lifeCalculate the effective half-life, taking into account the metabolism of radioactive substances absorbed into the body.
Bq (becquerel) values for radioactive substancesCalculate the becquerel value, which represents the amount of radiation emitted by a radioactive substance per second (the intensity of radioactivity).
Internal radiation exposure dose (oral)Converts the dose from internal exposure due to ingested radioactive material into an effective dose (in sieverts).
Internal radiation exposure dose (inhalation)This converts the internal radiation dose resulting from inhalation of radioactive material into an effective dose (in sieverts).
External radiation exposure doseConverts external radiation doses from the atmosphere and the ground into effective radiation doses (in sieverts).
Conversion from gray to sievertThis converts the absorbed dose (in grays) that the human body absorbs into the effective dose (in sieverts) that affects the human body.
Uranium-235 datingWe determine past ages based on the proportion of U-235 in natural uranium.