# B Can I find experimental data for the decay of Iodine-131?

1. Dec 20, 2016

### cj9

I'm currently undergoing an assignment in maths were it is is necessary to apply mathematical concepts to aspects in reality. Hence, I have chosen to model the radioactive decay of iodine 131, however I am required to plot the data of the radioactive decay of iodine 131, in order to find the equation rather than using the half-life. Is it possible to find experimental data for its decay.

I intend to find the equation of the function by graphing the data in order to get a negative exponential function.

If it helps my assignment is relevant to radioactive materials (iodine 131) leaked in the Fukushima Daiichi nuclear disaster.

Anything would be greatly appreciated

Thanks

Last edited: Dec 20, 2016
2. Dec 20, 2016

### Staff: Mentor

What do you mean by "find the equation"?
I doubt anyone collected a large sample of I-131 and then watched it decaying for months. That would be quite pointless.

There are publications measuring the half-life, did you search those?

3. Dec 20, 2016

### cj9

I intend to find the equation of the function by graphing the data in order to get a negative exponential function. Do you recommend any publications?

If it helps my assignment is relevant to radioactive materials (iodine 131) leaked in the Fukushima Daiichi nuclear disaster.
Thanks

Last edited: Dec 20, 2016
4. Dec 20, 2016

### ZapperZ

Staff Emeritus
5. Dec 20, 2016

### cj9

Much appreciated

What is that website in case I need data for other radioactive material.

6. Dec 20, 2016

### ZapperZ

Staff Emeritus
Er... I found it using Google!

Zz.

7. Dec 20, 2016

### PAllen

8. Dec 21, 2016

### Staff: Mentor

Those tables look like computed values, not measurements.

9. Dec 21, 2016

### cj9

Is it difficult to find measurements?

10. Dec 21, 2016

### Staff: Mentor

Someone has measured the lifetime, and there was probably more than one measurement. Just look for references to those papers to find experimental data.