NuklidCalc NuklidCalc

The application NuklidCalc is an handy tool for the radiation protection experts. It provides a swift access to the data found in the annex 3 of the Radiological Protection Ordinance (RPO) of June 22, 1994 (status as of January 1, 2014) and to the D-value of the IAEA document “Dangerous Quantities of Radioactive Material”. The application calculates different quantities related to operational radiation protection described below.


Nuclide data

for the selected nuclide, the data of the annex 3 of the RPO and the D-value set by the IAEA are displayed.


Working areas

for the selected nuclide, the limits of the activities that can be handled and stored in a working area of type A, B, C are calculated.


Numbers of LE/LA

for the selected nuclide, the numbers of LE and LA of the entered activity are calculated.


Dose rate <-> activity

for the selected nuclide, the activity as a function of the dose rate and the distance, and the dose rate as a function of the activity and the distance are calculated.


Activity at time t

for the selected nuclide, the activity at time t as a function of time t0 and activity A0 at time t0 is calculated.


Activity (t) < LE < 100 LE

for the selected nuclide, the necessary decay time for the activity of the source to be lower than LE (respectively 100 LE) as a function of time t0 and activity A0 at time t0 is calculated.


Conversion Ci <-> Bq

conversion of the entered activity in curie/becquerel in the other unit and its multiples.


Extremity dose

for the selected nuclide, the extremity dose as a function of the handled activity is calculated.