Register to reply

Bethe-formula VS SRIM for Uran in Polycarbonate

by Swain
Tags: betheformula, polycarbonate, srim, uran
Share this thread:
Swain
#1
Nov24-11, 10:23 AM
P: 1
Hello everybody,

I investigate polycarbonate foils (makrofol) of 90 μm thickness irradiated by U-ions with a charge of z= +28 and a specific energy of 11.4MeV/nucleon.

My problem is that in the Srim simulations the charge z is not questioned (or needed?), whereas the stopping power (-dE/dx) in the Bethe-formula is proportional to z^2.

I compared the dE/dx values of SRIM (srim.org) with the Bethe-Calculator of Sven Geier (http://www.sgeier.net/tools/bbt.html) and my own Bethe-calculations, they all vary.

My aim is the Bragg-curve, but therefore i would like to have the correct values/description of the stopping power.


Im sorry for my bad english.
Phys.Org News Partner Physics news on Phys.org
Step lightly: All-optical transistor triggered by single photon promises advances in quantum applications
The unifying framework of symmetry reveals properties of a broad range of physical systems
What time is it in the universe?

Register to reply

Related Discussions
Installing srim Math & Science Software 3
Bethe-Bloch formula for muons High Energy, Nuclear, Particle Physics 0
Bethe Bloch formula High Energy, Nuclear, Particle Physics 1
Obtaining range from bethe-bloch formula High Energy, Nuclear, Particle Physics 2
Bethe formula question High Energy, Nuclear, Particle Physics 3