```
Qin, G., and Shalchi, A.
```*Detailed numerical investigation of 90∘ scattering of energetic particles interacting with magnetic turbulence*. United States: N. p., 2014.
Web. doi:10.1063/1.4873895.

```
Qin, G., & Shalchi, A.
```*Detailed numerical investigation of 90∘ scattering of energetic particles interacting with magnetic turbulence*. United States. doi:10.1063/1.4873895.

```
Qin, G., and Shalchi, A. Tue .
"Detailed numerical investigation of 90∘ scattering of energetic particles interacting with magnetic turbulence". United States.
doi:10.1063/1.4873895.
```

```
@article{osti_22253010,
```

title = {Detailed numerical investigation of 90∘ scattering of energetic particles interacting with magnetic turbulence},

author = {Qin, G. and Shalchi, A.},

abstractNote = {In the present paper, we re-visit a well-known problem in diffusion theory, namely the 90∘ scattering problem. We use a test-particle code to compute the pitch-angle Fokker-Planck coefficient at 90∘ for different values of the turbulent magnetic field strength and the magnetic rigidity. We consider a slab model and compare our numerical findings with the analytical result provided by second-order quasilinear theory. We show that the latter theory accurately describes 90∘ scattering. We also replace the slab model by a more realistic two-component model to explore the influence of the turbulence model on 90∘ scattering.},

doi = {10.1063/1.4873895},

journal = {Physics of Plasmas},

number = 4,

volume = 21,

place = {United States},

year = {Tue Apr 15 00:00:00 EDT 2014},

month = {Tue Apr 15 00:00:00 EDT 2014}

}