Parallel code NSBC: Simulations of relativistic nuclei scattering by a bent crystal

Deflection of positively charged heavy particles by the crystal miscut surface

“…1) is free. Also, the Coulomb multiple scattering of nuclei was taken into account by the way described in [19,20]. The crystal of thickness l (the length of the longest, lowest plane in Fig.…”

“…Simulations of the motion of 270 GeV per unit charge Pb nuclei in the (1 1 0) Si miscut surface layer were carried out following the algorithm, in general, described in [17,19]. Namely, to evaluate the particle trajectory the equation for transverse motion:…”

Deflection of proton beams by crystal miscut surface

“…The projectile moves along the planes with quasiconstant velocity v 0 that defines the longitudinal coordinate of its trajectory as a function of time z(t) = v 0 t. The deviation of projectile trajectory from that defined by Eq. ( 1) due to the proton multiple scattering is taken into account by the technique previously described in [10,31]. The angular distribution of the beam at any fixed moment τ with respect to the crystal plane (in our case, the (110) plane) is determined by the expressions tan θ i = v xi (τ )/v 0 where v xi (τ ) = (dx/dt) τ is the transverse velocity of i-th proton at that moment.…”