10 #ifndef IMPACTX_SBEND_H 11 #define IMPACTX_SBEND_H 29 static constexpr
auto name =
"Sbend";
38 Sbend( amrex::ParticleReal
const ds, amrex::ParticleReal
const rc,
45 using BeamOptic::operator();
57 PType& AMREX_RESTRICT p,
58 amrex::ParticleReal & AMREX_RESTRICT px,
59 amrex::ParticleReal & AMREX_RESTRICT py,
60 amrex::ParticleReal & AMREX_RESTRICT pt,
61 RefPart const & refpart)
const {
63 using namespace amrex::literals;
66 amrex::ParticleReal
const x = p.pos(0);
67 amrex::ParticleReal
const y = p.pos(1);
68 amrex::ParticleReal
const t = p.pos(2);
71 amrex::ParticleReal pxout = px;
72 amrex::ParticleReal pyout = py;
73 amrex::ParticleReal ptout = pt;
76 amrex::ParticleReal
const slice_ds =
m_ds /
nslice();
79 amrex::ParticleReal
const pt_ref = refpart.
pt;
80 amrex::ParticleReal
const betgam2 =
pow(pt_ref, 2) - 1.0_prt;
81 amrex::ParticleReal
const bet =
sqrt(betgam2/(1.0_prt + betgam2));
85 amrex::ParticleReal
const theta = slice_ds/
m_rc;
86 amrex::ParticleReal
const sin_theta = sin(theta);
87 amrex::ParticleReal
const cos_theta = cos(theta);
90 p.pos(0) = cos_theta*x +
m_rc*sin_theta*px
91 - (
m_rc/bet)*(1.0_prt - cos_theta)*pt;
93 pxout = -sin_theta/
m_rc*x + cos_theta*px - sin_theta/bet*pt;
95 p.pos(1) = y +
m_rc*theta*py;
99 p.pos(2) = sin_theta/bet*x +
m_rc/bet*(1.0_prt - cos_theta)*px + t
100 +
m_rc*(-theta+sin_theta/(bet*bet))*pt;
118 using namespace amrex::literals;
121 amrex::ParticleReal
const x = refpart.x;
122 amrex::ParticleReal
const px = refpart.px;
123 amrex::ParticleReal
const y = refpart.y;
124 amrex::ParticleReal
const py = refpart.py;
125 amrex::ParticleReal
const z = refpart.z;
126 amrex::ParticleReal
const pz = refpart.pz;
127 amrex::ParticleReal
const t = refpart.t;
128 amrex::ParticleReal
const pt = refpart.pt;
129 amrex::ParticleReal
const s = refpart.s;
132 amrex::ParticleReal
const slice_ds =
m_ds /
nslice();
135 amrex::ParticleReal
const theta = slice_ds/
m_rc;
136 amrex::ParticleReal
const B =
sqrt(
pow(pt,2)-1.0_prt)/
m_rc;
140 amrex::ParticleReal
const sin_theta = sin(theta);
141 amrex::ParticleReal
const cos_theta = cos(theta);
144 refpart.px = px*cos_theta - pz*sin_theta;
146 refpart.pz = pz*cos_theta + px*sin_theta;
149 refpart.x = x + (refpart.pz - pz)/B;
150 refpart.y = y + (theta/B)*py;
151 refpart.z = z - (refpart.px - px)/B;
152 refpart.t = t - (theta/B)*pt;
155 refpart.s = s + slice_ds;
165 #endif // IMPACTX_SBEND_H
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE void operator()(PType &AMREX_RESTRICT p, amrex::ParticleReal &AMREX_RESTRICT px, amrex::ParticleReal &AMREX_RESTRICT py, amrex::ParticleReal &AMREX_RESTRICT pt, RefPart const &refpart) const
Definition: Sbend.H:56
Definition: ImpactX.cpp:31
Definition: beamoptic.H:131
amrex::ParticleReal pt
energy deviation, normalized by rest energy
Definition: ReferenceParticle.H:39
#define AMREX_FORCE_INLINE
static constexpr auto name
Definition: Sbend.H:29
#define AMREX_GPU_HOST_DEVICE
amrex::ParticleReal m_rc
Definition: Sbend.H:160
Particle< NStructReal, NStructInt > ParticleType
Thick(amrex::ParticleReal const ds, int const nslice)
Definition: thick.H:30
Definition: ReferenceParticle.H:29
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE GpuComplex< T > pow(const GpuComplex< T > &a_z, const T &a_y) noexcept
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE amrex::ParticleReal ds() const
Definition: thick.H:50
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE int nslice() const
Definition: thick.H:40
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE GpuComplex< T > sqrt(const GpuComplex< T > &a_z) noexcept
Sbend(amrex::ParticleReal const ds, amrex::ParticleReal const rc, int const nslice)
Definition: Sbend.H:38
amrex::ParticleReal m_ds
Definition: thick.H:56