A Complete Example for multipacting field level scan
1. Information related all particles with resonant trajectories are in the file ./job/OUTPUT/resonantparticles, the format of resonantparticles shows below:
Field Level ID X Y Z Energy Phase RF Impact_num
16000000 4310 -0.00079 0.100003 -0.00017 10.58931 1.48E-08 19.41 39
16000000 4310 -0.00079 0.100003 0.000168 10.50246 1.52E-08 19.91 40
16000000 4440 -0.00079 0.100003 -0.00017 10.58718 1.48E-08 19.41 39
16000000 4440 -0.00079 0.100003 0.000168 10.50515 1.52E-08 19.91 40
...
17000000 4500 -0.00078 0.100008 -0.00017 15.45694 1.48E-08 19.39 39
17000000 4500 -0.00078 0.100008 0.000175 15.46824 1.51E-08 19.89 40
17000000 4630 -0.00078 0.100008 -0.00017 15.43081 1.48E-08 19.39 39
17000000 4630 -0.00078 0.100008 0.000175 15.38785 1.51E-08 19.89 40
17000000 4760 -0.00078 0.100008 -0.00017 15.36465 1.48E-08 19.39 39
17000000 4760 -0.00078 0.100008 0.000175 15.45242 1.51E-08 19.89 40
...
18000000 10901 -0.00078 0.100005 -0.00017 20.42707 1.47E-08 19.37 38
18000000 10901 -0.00078 0.100006 0.000178 20.46064 1.51E-08 19.87 39
18000000 11021 -0.00078 0.100005 -0.00018 20.49802 1.47E-08 19.37 38
18000000 11021 -0.00078 0.100006 0.000178 20.46099 1.51E-08 19.87 39
18000000 11141 -0.00078 0.100006 -0.00018 20.42072 1.47E-08 19.37 38
18000000 11141 -0.00078 0.100005 0.000177 20.4386 1.51E-08 19.87 39
19000000 3460 -0.00078 0.100016 -0.00017 24.09866 1.47E-08 19.36 39
...
Explanation:
First colum: Field level;
Second colum: particle ID;
Third colum: the x coordinator of particle's impact position;
Fourth colum: the y coordinator of particle's impact position;
Fifth colum: the z coordinator of particle's impact position;
Sixth colum: particle's impact energy in eV;
Seventh colum: particle's impact phase;
Eighth colum: particle's impact time in RF cycle;
Ninth colum: particle's impact number;
For example, from first two lines in the above example output data, we know that at field level 16MV/m, the particle's (ID 4310)last two impacts' (39, 40) impact energies are 10.58931 and 10.50246, we also know their corresponding impact positions. For details of each resonant particle's information, see the file in ./job/OUTPUT/MPParticles*
2. Information related all particles with resonant trajectories at a single field level is in the file ./job/OUTPUT/MPParticles*, the format of the file shows below:
Particle ID 47001 total 51 impacts
0 -1.21169903e-01 2.59999000e-01 -1.10533933e-01 2.00000000e+00 4.60000000e-01
1 -1.20286001e-01 2.60014656e-01 -1.10919628e-01 1.65458514e+02 1.23000000e+00
2 -1.21815314e-01 2.60075499e-01 -1.12468337e-01 2.00254221e+02 2.16000000e+00
3 -1.17494040e-01 2.60168428e-01 -1.09433448e-01 5.31140075e+02 3.33000000e+00
4 -1.20069099e-01 2.60014500e-01 -1.11640855e-01 7.07904283e+01 4.15000000e+00
5 -1.21872443e-01 2.60055470e-01 -1.13187720e-01 1.54175170e+02 5.13000000e+00
6 -1.15927695e-01 2.60106057e-01 -1.08433821e-01 5.91315164e+02 6.37000000e+00
7 -1.18458881e-01 2.60129450e-01 -1.10663427e-01 5.39523370e+01 7.16000000e+00
8 -1.20625111e-01 2.60152822e-01 -1.12498558e-01 7.83412829e+01 8.13000000e+00
9 -1.20982466e-01 2.60050997e-01 -1.13368367e-01 2.15465202e+02 9.18000000e+00
10 -1.20145835e-01 2.60199572e-01 -1.13260591e-01 3.81278009e+02 1.02300000e+01
11 -1.21081954e-01 2.60209524e-01 -1.14354168e-01 2.96273552e+02 1.11800000e+01
12 -1.18728446e-01 2.60127100e-01 -1.13069714e-01 5.30929865e+02 1.22700000e+01
13 -1.20875235e-01 2.60133494e-01 -1.15022549e-01 1.49115895e+02 1.31400000e+01
14 -1.18077892e-01 2.60001701e-01 -1.13265186e-01 4.78813806e+02 1.42800000e+01
15 -1.20298504e-01 2.60145823e-01 -1.15279976e-01 1.19531080e+02 1.51400000e+01
16 -1.19283032e-01 2.60261229e-01 -1.14922126e-01 3.71941381e+02 1.62300000e+01
17 -1.20626039e-01 2.60137910e-01 -1.16301477e-01 2.86617076e+02 1.71600000e+01
18 -1.26545724e-01 2.56247874e-01 -1.19998098e-01 2.94209998e+01 1.79000000e+01
19 -1.13254396e-01 2.60410214e-01 -1.11854058e-01 9.17291745e+02 1.83100000e+01
20 -1.16216727e-01 2.60006064e-01 -1.14613063e-01 6.06629977e+01 1.91500000e+01
21 -1.18181022e-01 2.60141588e-01 -1.16514923e-01 7.16122961e+01 2.01300000e+01
22 -1.19455437e-01 2.60197068e-01 -1.17765165e-01 1.78624164e+02 2.11400000e+01
23 -1.16661134e-01 2.60219134e-01 -1.15335359e-01 5.55110182e+02 2.22900000e+01
24 -1.19013362e-01 2.60005150e-01 -1.17530757e-01 1.19042630e+02 2.31300000e+01
25 -1.18060882e-01 2.60144940e-01 -1.16745516e-01 4.04362017e+02 2.42300000e+01
26 -1.19495663e-01 2.60121237e-01 -1.18219764e-01 2.81250204e+02 2.51500000e+01
27 -1.24685415e-01 2.55970645e-01 -1.22821171e-01 4.42499046e+01 2.58900000e+01
28 -1.12511919e-01 2.60104032e-01 -1.12167073e-01 1.01041046e+03 2.63000000e+01
29 -1.15350471e-01 2.60050797e-01 -1.14952432e-01 6.19635677e+01 2.71500000e+01
30 -1.17335755e-01 2.60099282e-01 -1.16863940e-01 6.37315316e+01 2.81300000e+01
31 -1.18941468e-01 2.60010636e-01 -1.18486082e-01 1.41659527e+02 2.91200000e+01
32 -1.15912019e-01 2.60229438e-01 -1.15483606e-01 5.45095116e+02 3.03000000e+01
33 -1.18120098e-01 2.60041808e-01 -1.17699454e-01 1.01173353e+02 3.11400000e+01
34 -1.18760197e-01 2.60142979e-01 -1.18302103e-01 2.97733684e+02 3.21700000e+01
35 -1.17946438e-01 2.60144149e-01 -1.17407052e-01 5.20894363e+02 3.32400000e+01
36 -1.18972829e-01 2.60056485e-01 -1.18449114e-01 3.43538106e+02 3.41700000e+01
37 -1.18249097e-01 2.60303235e-01 -1.17635259e-01 5.53380420e+02 3.52400000e+01
38 -1.18519568e-01 2.60211948e-01 -1.17860002e-01 4.44891396e+02 3.62100000e+01
39 -1.18466696e-01 2.60286228e-01 -1.17725106e-01 4.75773402e+02 3.72200000e+01
40 -1.18702774e-01 2.60114358e-01 -1.17894782e-01 4.67737859e+02 3.82100000e+01
41 -1.18561070e-01 2.60127665e-01 -1.17680567e-01 4.92410647e+02 3.92200000e+01
42 -1.18683590e-01 2.60201748e-01 -1.17790259e-01 4.54332311e+02 4.02100000e+01
43 -1.18590345e-01 2.60203845e-01 -1.17668108e-01 4.88547811e+02 4.12200000e+01
44 -1.18774894e-01 2.60157822e-01 -1.17832953e-01 4.67193251e+02 4.22100000e+01
45 -1.18659842e-01 2.60089707e-01 -1.17682719e-01 5.00522149e+02 4.32200000e+01
46 -1.18760866e-01 2.60163027e-01 -1.17781515e-01 4.61325010e+02 4.42100000e+01
47 -1.18652996e-01 2.60206130e-01 -1.17666973e-01 4.91540232e+02 4.52200000e+01
48 -1.18819730e-01 2.60072496e-01 -1.17824145e-01 4.75822042e+02 4.62100000e+01
49 -1.18659769e-01 2.60214521e-01 -1.17666950e-01 4.91700497e+02 4.72200000e+01
50 -1.18825841e-01 2.60058104e-01 -1.17823183e-01 4.78194137e+02 4.82100000e+01
Particle ID 42001 total 51 impacts
0 -1.21169903e-01 2.59999000e-01 -1.10533933e-01 2.00000000e+00 4.10000000e-01
1 -1.19717870e-01 2.60078718e-01 -1.10396950e-01 2.29748826e+02 1.27000000e+00
2 -1.21626815e-01 2.60171944e-01 -1.12180022e-01 1.55856256e+02 2.16000000e+00
3 -1.18380325e-01 2.60108270e-01 -1.10149169e-01 4.49658586e+02 3.31000000e+00
4 -1.20812024e-01 2.60100620e-01 -1.12234595e-01 9.30324517e+01 4.15000000e+00
5 -1.21070594e-01 2.60130196e-01 -1.12987526e-01 2.49027462e+02 5.19000000e+00
6 -1.20041714e-01 2.60203443e-01 -1.12791026e-01 4.05999735e+02 6.24000000e+00
7 -1.21337140e-01 2.60171838e-01 -1.14070497e-01 2.58355081e+02 7.17000000e+00
8 -1.18376238e-01 2.60032235e-01 -1.12356484e-01 5.66913680e+02 8.28000000e+00
9 -1.20610667e-01 2.60059309e-01 -1.14360934e-01 1.13629350e+02 9.14000000e+00
10 -1.20088283e-01 2.60008309e-01 -1.14447177e-01 3.43602211e+02 1.02100000e+01
11 -1.20769554e-01 2.60066577e-01 -1.15233935e-01 3.28152116e+02 1.11800000e+01
12 -1.19073090e-01 2.60106117e-01 -1.14365911e-01 5.12065738e+02 1.22500000e+01
13 -1.20685281e-01 2.60064625e-01 -1.15835253e-01 2.13176558e+02 1.31500000e+01
14 -1.18277477e-01 2.60087515e-01 -1.14257214e-01 5.43008579e+02 1.42700000e+01
15 -1.20476288e-01 2.60037643e-01 -1.16257849e-01 1.54201757e+02 1.51300000e+01
16 -1.17388872e-01 2.60165414e-01 -1.14039364e-01 5.26629438e+02 1.62900000e+01
17 -1.19734173e-01 2.60183272e-01 -1.16151330e-01 1.15992116e+02 1.71400000e+01
18 -1.19000807e-01 2.60228824e-01 -1.15888864e-01 3.61963392e+02 1.82200000e+01
19 -1.20261893e-01 2.60015653e-01 -1.17098927e-01 3.21737896e+02 1.91600000e+01
20 -1.25827427e-01 2.56157759e-01 -1.21187823e-01 4.54170936e+01 1.98900000e+01
21 -1.13109491e-01 2.60288425e-01 -1.12227070e-01 9.48625096e+02 2.03000000e+01
22 -1.15987437e-01 2.60022222e-01 -1.14970732e-01 6.14881131e+01 2.11500000e+01
23 -1.17935509e-01 2.60136698e-01 -1.16836908e-01 7.20874106e+01 2.21300000e+01
24 -1.19248827e-01 2.60019236e-01 -1.18281619e-01 1.77513855e+02 2.31300000e+01
25 -1.16472021e-01 2.60233169e-01 -1.15657858e-01 5.66740418e+02 2.42900000e+01
26 -1.18787381e-01 2.60020176e-01 -1.17887913e-01 1.23569898e+02 2.51300000e+01
27 -1.17607739e-01 2.60150432e-01 -1.16757938e-01 4.19837359e+02 2.62400000e+01
28 -1.19283114e-01 2.60115125e-01 -1.18495326e-01 2.39178714e+02 2.71400000e+01
29 -1.24366967e-01 2.55948066e-01 -1.23175697e-01 2.92332483e+01 2.79000000e+01
30 -1.12942763e-01 2.60015484e-01 -1.12666143e-01 9.64364448e+02 2.83000000e+01
31 -1.15612580e-01 2.60008597e-01 -1.15288293e-01 6.06920203e+01 2.91500000e+01
32 -1.17568462e-01 2.60126685e-01 -1.17163137e-01 7.07355384e+01 3.01300000e+01
33 -1.18930168e-01 2.60136415e-01 -1.18641507e-01 1.79147123e+02 3.11300000e+01
34 -1.16107438e-01 2.60013381e-01 -1.15898158e-01 5.97637027e+02 3.22900000e+01
35 -1.18216705e-01 2.60153276e-01 -1.18029486e-01 1.13940087e+02 3.31400000e+01
36 -1.17987820e-01 2.60235956e-01 -1.17675404e-01 3.56535906e+02 3.42100000e+01
37 -1.18790059e-01 2.60165498e-01 -1.18428150e-01 3.73035619e+02 3.51800000e+01
38 -1.18359891e-01 2.60024533e-01 -1.17914088e-01 5.46924437e+02 3.62300000e+01
39 -1.18445276e-01 2.60216168e-01 -1.17952010e-01 4.44574962e+02 3.72100000e+01
40 -1.18365373e-01 2.60197599e-01 -1.17731690e-01 4.80906956e+02 3.82200000e+01
41 -1.18746611e-01 2.60042218e-01 -1.18062952e-01 4.42132549e+02 3.92000000e+01
42 -1.18550546e-01 2.60066400e-01 -1.17759540e-01 4.99081539e+02 4.02200000e+01
43 -1.18635329e-01 2.60207745e-01 -1.17827420e-01 4.53189934e+02 4.12100000e+01
44 -1.18539204e-01 2.60217526e-01 -1.17692910e-01 4.86772805e+02 4.22200000e+01
45 -1.18733981e-01 2.60163207e-01 -1.17853133e-01 4.65522750e+02 4.32100000e+01
46 -1.18614947e-01 2.60074546e-01 -1.17686311e-01 4.98291037e+02 4.42200000e+01
47 -1.18708470e-01 2.60208878e-01 -1.17774663e-01 4.54374656e+02 4.52100000e+01
48 -1.18611960e-01 2.60157058e-01 -1.17650795e-01 4.90332007e+02 4.62200000e+01
49 -1.18760267e-01 2.60185775e-01 -1.17791781e-01 4.61096091e+02 4.72100000e+01
50 -1.18662943e-01 2.60149916e-01 -1.17668177e-01 4.97097101e+02 4.82200000e+01
...
Explanation: This file records all the resonant particles' all impact information at this field level. For example, for particle ID 47001, it has 51 impacts,
Impact number impact position (x, y, z) impact energy(eV) impact time (in RF cycle)
0 -1.21169903e-01 2.59999000e-01 -1.10533933e-01 2.00000000e+00 4.60000000e-01
1 -1.20286001e-01 2.60014656e-01 -1.10919628e-01 1.65458514e+02 1.23000000e+00
2 -1.21815314e-01 2.60075499e-01 -1.12468337e-01 2.00254221e+02 2.16000000e+00
...
48 -1.18819730e-01 2.60072496e-01 -1.17824145e-01 4.75822042e+02 4.62100000e+01
49 -1.18659769e-01 2.60214521e-01 -1.17666950e-01 4.91700497e+02 4.72200000e+01
50 -1.18825841e-01 2.60058104e-01 -1.17823183e-01 4.78194137e+02 4.82100000e+01
According to above information, we have the conclusion: at this field level, there are resonant trajectories: one point first order and the impact energies is around 470eV ~500eV