A beam of particles contains protons, alpha particles and muons with Ekin = 2 GeV. Calculate their respective energy loss dE/dx in a gas with Z/A = 0.5 and I = 60eV.
How can the ionisation loss of a particle be used to determine its electical charge z?
2007-04-05 02:12:58 · 2 answers · asked by Cameron L 1 in Science & Mathematics ➔ Physics
Reg. Meg's answer - I know the Bethe-Bloch formula is needed, but i have no idea how to apply it here given the beam contains protons, alpha particles and muons.........
2007-04-10 02:10:03 · update #1
I would use the Bethe-Bloch formula.
"The ionization energy loss is to a good approximation proportional to the electron density in the medium and to the square of the projectile charge, and otherwise depends mainly on the projectile velocity."
see
http://rkb.home.cern.ch/rkb/PH14pp/node62.html
2007-04-05 11:48:19 · answer #1 · answered by meg 7 · 0⤊ 0⤋
Energy loss in argon, as a function of particle mass and momentum; the vertical scale gives the relative increase above the minimum of ionisation. ...
www.shef.ac.uk/physics/teaching/phy311/eloss.html
Two processes contribute to energy loss: ionisation and bremsstrahlung ... Models are defined for particles – may be extended to definition per regions ...
www.triumf.ca/geant4-03/talks/04-Thursday-AM-1/02-V.Ivantchenko/eloss03.ppt
2007-04-13 08:22:14 · answer #2 · answered by kspraveen 2 · 0⤊ 0⤋