**Kinetic energy of alpha particle in cockroft walton experiment.**
1.*The*problem statement, all variables and given/known data
When a*7*3*Li nucleus is bombarded with protons α particles emerge.Calculate the kinetic energy of the alpha particle assuming the kinetic energy of the bombarding proton to be negligible. Given M (7*3*Li)=7.016004a.m.u. M (p)=1.007826a.m.u and
M(α)=4.002603a.m.u.
2.Relevant equations
7*3*Li +*1*1H --> 2 4*2He
Q = (M*Li*+ MH*-2Mα)931.5MeV....1
Kα=n= [MαQ + Kp(Mα*- mp)]/2Mα....2
3. The attempt at a solution
Using equation 1 Q=(7.016004+1.007826- 2×4.002603) 931.5 =17.35MeV
It is given that Kp~0 so Kα= Q/2 =8.675MeV
What do you people think about my solution methods used? The numerical values are matching approximately with the given answers in the text book by the way.
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Last edited by pranimaboity2050; Oct 25th 2014 at 10:44 AM.
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