Decay Calculator

CAUTION - This decay calculator may not work properly with older versions of Javascript compliant browsers (in particular Netscape Navigator v2.0x). The decay calculator has been tested and performed correctly with Netscape Navigator versions 3.0x and higher and Microsoft Internet Explorer versions 3.0 and higher.

If you experience any problems or have any comments about the decay calculator, please contact johnppas@ucsc.edu.

Initial Amount:

Ci mCi uCi nCi

Select Isotope:

³H
¹⁴C
³⁵S
³²P
³³P
¹²⁵I

Month

Day

Year

Reference Date:

/ /

Current Date:

/ /

Enter year 2000 dates and later using 4 digits.

the Current Amount

Lamda Value

Time Elapsed (in Days)

For additional information about Radiation Safety please contact John Peter Pasinosky, RSO at johnppas@ucsc.edu.