Calculate SRIM Layer Width Using Mica & Dry Air

[Nouki]

Hello, I'm trying to calculate the width of a layer using SRIM. I have one layer with dry air and one with mica. I know the width of air and the ranges of a-particles shown in the photo https://www.researchgate.net/profile/Ashraf_Almahwasi/publication/311666631/figure/fig5/AS:439633088651266@1481828104140/Alpha-particle-absorption-curve-The-mean-range-is-the-range-that-corresponds-to-the.ppm and I'm trying to find the thickness of the thin mica window.

 

[AndyW]

Can you help?

Sure, I'd be happy to help. To calculate the width of the mica layer, you will need to use the stopping range of the alpha particles in the mica layer and the known range of the alpha particles in air. The stopping range is the distance an alpha particle travels before it loses all of its energy. This can be found in the SRIM program by inputting the material properties of mica and the energy of the alpha particles.

Once you have the stopping range of the alpha particles in mica, you can use the known range in air to determine the thickness of the mica layer. This can be done using the following formula:

Thickness of mica layer = Range in air - Stopping range in mica

By plugging in the values you have, you should be able to calculate the thickness of the mica layer. It's also important to note that the stopping range can vary depending on the energy of the alpha particles, so make sure you are using the correct value for your specific experiment.

I hope this helps and please let me know if you have any further questions. Good luck with your calculations!