Atomic transitions He ions I II He 3He 4He

Table lookup:

Wavelength: [Å]
Intensity:
fik:
Aki: [108sec-1]
Excitation cross section:
Serie:
Lower Level:
Upper Level:
Serie Lower Level Upper Level Wavelength[Å] Intensity fik Aki
[108-1]
Excitation cross section
Qmax* 1018, cm2
Source
1s2p - 2p@{2} 1s2p : 3 P ° 1 2p@{2} : 3 P 2-0 320.39 10
1s@{2} - 1snp 1s@{2} : 1 S 0 1s15p : 1 P ° 1 505.5 2
1s@{2} - 1snp 1s@{2} : 1 S 0 1s14p : 1 P ° 1 505.68 3
1s@{2} - 1snp 1s@{2} : 1 S 0 1s13p : 1 P ° 1 505.91 4
1s@{2} - 1snp 1s@{2} : 1 S 0 1s12p : 3 P ° 2-0 506.2 5
1s@{2} - 1snp 1s@{2} : 1 S 0 1s11p : 1 P ° 1 506.57 7
1s@{2} - 1snp 1s@{2} : 1 S 0 1s10p : 1 P ° 1 507.06 10
1s@{2} - 1snp 1s@{2} : 1 S 0 1s9p : 1 P ° 1 507.72 15
1s@{2} - 1snp 1s@{2} : 1 S 0 1s8p : 1 P ° 1 508.64 20
1s@{2} - 1snp 1s@{2} : 1 S 0 1s7p : 1 P ° 1 509.99 25
1s@{2} - 1sns 1s@{2} : 1 S 0 1s7s : 1 S 0 510.26
1s@{2} - 1snp 1s@{2} : 1 S 0 1s6p : 1 P ° 1 512.1 35
1s@{2} - 1sns 1s@{2} : 1 S 0 1s6s : 1 S 0 512.52
1s@{2} - 1snp 1s@{2} : 1 S 0 1s5p : 1 P ° 1 515.62 50
1s@{2} - 1sns 1s@{2} : 1 S 0 1s5s : 1 S 0 516.36
1s@{2} - 1snp 1s@{2} : 1 S 0 1s4p : 1 P ° 1 522.21 80
1s@{2} - 1sns 1s@{2} : 1 S 0 1s4s : 1 S 0 523.72
1s@{2} - 1snp 1s@{2} : 1 S 0 1s3p : 1 P ° 1 537.03 200
1s@{2} - 1snd 1s@{2} : 1 S 0 1s3d : 1 D 2 537.33
1s@{2} - 1snp 1s@{2} : 1 S 0 1s3p : 3 P ° 1 538.895
1s@{2} - 1sns 1s@{2} : 1 S 0 1s3s : 1 S 0 540.935
1s@{2} - 1snp 1s@{2} : 1 S 0 1s2p : 1 P ° 1 584.33 500
1s@{2} - 1snp 1s@{2} : 1 S 0 1s2p : 3 P ° 1 591.41 20
1s@{2} - 1sns 1s@{2} : 1 S 0 1s2s : 1 S 0 601.4
1s2s - 1snp 1s2s : 3 S 1 1s22p : 3 P ° 2-0 2615.18
1s2s - 1snp 1s2s : 3 S 1 1s21p : 3 P ° 2-0 2616.71
1s2s - 1snp 1s2s : 3 S 1 1s20p : 3 P ° 2-0 2618.48
1s2s - 1snp 1s2s : 3 S 1 1s19p : 3 P ° 2-0 2620.53
1s2s - 1snp 1s2s : 3 S 1 1s18p : 3 P ° 2-0 2622.95
1s2s - 1snp 1s2s : 3 S 1 1s17p : 3 P ° 2-0 2625.81
1s2s - 1snp 1s2s : 3 S 1 1s16p : 3 P ° 2-0 2629.23
1s2s - 1snp 1s2s : 3 S 1 1s15p : 3 P ° 2-0 2633.375
1s2s - 1snp 1s2s : 3 S 1 1s14p : 3 P ° 2-0 2638.46
1s2s - 1snp 1s2s : 3 S 1 1s13p : 3 P ° 2-0 2644.8 2
1s2s - 1snp 1s2s : 3 S 1 1s12p : 3 P ° 2-0 2652.85 3
1s2s - 1snp 1s2s : 3 S 1 1s11p : 3 P ° 2-0 2663.27 4
1s2s - 1snp 1s2s : 3 S 1 1s10p : 3 P ° 2-0 2677.135 5
1s2s - 1snp 1s2s : 3 S 1 1s9p : 3 P ° 2-0 2696.12 7
1s2s - 1snp 1s2s : 3 S 1 1s8p : 3 P ° 2-0 2723.19 10
1s2s - 1snp 1s2s : 3 S 1 1s7p : 3 P ° 2-0 2763.8 20
1s2s - 1snp 1s2s : 3 S 1 1s6p : 3 P ° 2-0 2829.08 40
1s2s - 1snp 1s2s : 3 S 1 1s5p : 3 P ° 2-0 2945.11 100
1s2s - 1snp 1s2s : 1 S 0 1s20p : 1 P ° 1 3147.78
1s2s - 1snp 1s2s : 1 S 0 1s19p : 1 P ° 1 3150.71
1s2s - 1snp 1s2s : 1 S 0 1s18p : 1 P ° 1 3154.16
1s2s - 1snp 1s2s : 1 S 0 1s17p : 1 P ° 1 3158.23
1s2s - 1snp 1s2s : 1 S 0 1s16p : 1 P ° 1 3163.11
1s2s - 1snp 1s2s : 1 S 0 1s15p : 1 P ° 1 3169.02
1s2s - 1snp 1s2s : 1 S 0 1s14p : 1 P ° 1 3176.27
1s2s - 1snp 1s2s : 1 S 0 1s13p : 1 P ° 1 3185.29
1s2s - 1snp 1s2s : 3 S 1 1s4p : 3 P ° 2-0 3187.745 200
1s2s - 1snp 1s2s : 1 S 0 1s12p : 1 P ° 1 3196.74 2
1s2s - 1snp 1s2s : 1 S 0 1s11p : 1 P ° 1 3211.57 2
1s2s - 1snp 1s2s : 1 S 0 1s10p : 1 P ° 1 3231.27 3
1s2s - 1snp 1s2s : 1 S 0 1s9p : 1 P ° 1 3258.275 5
1s2s - 1snp 1s2s : 1 S 0 1s8p : 1 P ° 1 3296.77 7
1s2s - 1snp 1s2s : 1 S 0 1s7p : 1 P ° 1 3354.55 10
1s2s - 1snp 1s2s : 1 S 0 1s6p : 1 P ° 1 3447.59 15
1s2p - 1snd 1s2p : 3 P ° 1 1s21d : 3 D 3-1 3450.22
1s2p - 1snd 1s2p : 3 P ° 1 1s20d : 3 D 3-1 3453.21
1s2p - 1snd 1s2p : 3 P ° 1 1s19d : 3 D 3-1 3456.84
1s2p - 1snd 1s2p : 3 P ° 1 1s18d : 3 D 3-1 3461
1s2p - 1snd 1s2p : 3 P ° 1 1s17d : 3 D 3-1 3463.925
1s2p - 1sns 1s2p : 3 P ° 1 1s17s : 3 S 1 3467.54
1s2p - 1snd 1s2p : 3 P ° 1 1s16d : 3 D 3-1 3471.82
1s2p - 1snd 1s2p : 3 P ° 0 1s16d : 3 D 3-1 3471.94
1s2p - 1sns 1s2p : 3 P ° 1 1s16s : 3 S 1 3473.76
1s2p - 1snd 1s2p : 3 P ° 1 1s15d : 3 D 3-1 3478.96 2
1s2p - 1snd 1s2p : 3 P ° 0 1s15d : 3 D 3-1 3479.08
1s2p - 1sns 1s2p : 3 P ° 1 1s15s : 3 S 1 3481.355
1s2p - 1snd 1s2p : 3 P ° 1 1s14d : 3 D 3-1 3487.72 2
1s2p - 1snd 1s2p : 3 P ° 0 1s14d : 3 D 3-1 3487.85
1s2p - 1sns 1s2p : 3 P ° 1 1s14s : 3 S 1 3490.685
1s2p - 1snd 1s2p : 3 P ° 1 1s13d : 3 D 3-1 3498.645
1s2p - 1snd 1s2p : 3 P ° 0 1s13d : 3 D 3-1 3498.77
1s2p - 1sns 1s2p : 3 P ° 1 1s13s : 3 S 1 3502.38 2
1s2p - 1snd 1s2p : 3 P ° 1 1s12d : 3 D 3-1 3512.51 4
1s2p - 1snd 1s2p : 3 P ° 0 1s12d : 3 D 3-1 3512.64
1s2p - 1sns 1s2p : 3 P ° 1 1s12s : 3 S 1 3517.32 2
1s2p - 1snd 1s2p : 3 P ° 1 1s11d : 3 D 3-1 3530.49 5
1s2p - 1snd 1s2p : 3 P ° 0 1s11d : 3 D 3-1 3530.62
1s2p - 1sns 1s2p : 3 P ° 1 1s11s : 3 S 1 3536.81 3
1s2p - 1snd 1s2p : 3 P ° 1 1s10d : 3 D 3-1 3554.415 7
1s2p - 1snd 1s2p : 3 P ° 0 1s10d : 3 D 3-1 3554.55
1s2p - 1sns 1s2p : 3 P ° 1 1s10s : 3 S 1 3562.98 4
1s2p - 1snd 1s2p : 3 P ° 1 1s9d : 3 D 3-1 3587.27 10
1s2p - 1snd 1s2p : 3 P ° 0 1s9d : 3 D 3-1 3587.405 2
1s2p - 1sns 1s2p : 3 P ° 0 1s9s : 3 S 1 3599.15 2
1s2p - 1sns 1s2p : 3 P ° 2 1s9s : 3 S 1 3599.31 5
1s2s - 1snp 1s2s : 1 S 0 1s5p : 1 P ° 1 3613.64 30
1s2p - 1snd 1s2p : 3 P ° 1 1s8d : 2 D 3-1 3634.23 15
1s2p - 1snd 1s2p : 3 P ° 0 1s8d : 2 D 3-1 3634.37 2
1s2p - 1sns 1s2p : 3 P ° 1 1s8s : 3 S 1 3651.99 7
1s2p - 1sns 1s2p : 3 P ° 0 1s8s : 3 S 1 3652.13 2
1s2p - 1snd 1s2p : 3 P ° 1 1s7d : 3 D 3-1 3705.01 30
1s2p - 1snd 1s2p : 3 P ° 0 1s7d : 3 D 3-1 3705.15 3
1s2p - 1snp 1s2p : 1 P ° 1 1s18p : 1 P ° 1 3725.13
1s2p - 1snd 1s2p : 1 P ° 1 1s17d : 1 D 2 3730.84
1s2p - 1sns 1s2p : 3 P ° 1 1s7s : 3 S 1 3732.865 10
1s2p - 1sns 1s2p : 3 P ° 0 1s7s : 3 S 1 3733.01 3
1s2p - 1snd 1s2p : 1 P ° 1 1s16d : 1 D 2 3737.67
1s2p - 1snd 1s2p : 1 P ° 1 1s15d : 1 D 2 3745.94
1s2p - 1sns 1s2p : 1 P ° 1 1s15s : 1 S 0 3747.21
1s2p - 1snd 1s2p : 1 P ° 1 1s14d : 1 D 2 3756.11
1s2p - 1sns 1s2p : 1 P ° 1 1s14s : 1 S 0 3757.67
1s2p - 1snd 1s2p : 1 P ° 1 1s13d : 1 D 2 3768.78 2
1s2p - 1sns 1s2p : 1 P ° 1 1s13s : 1 S 0 3770.75
1s2p - 1snd 1s2p : 1 P ° 1 1s12d : 1 D 2 3784.86 2
1s2p - 1sns 1s2p : 1 P ° 1 1s12s : 1 S 0 3787.42
1s2p - 1snd 1s2p : 1 P ° 1 1s11d : 1 D 2 3805.74 3
1s2p - 1sns 1s2p : 1 P ° 1 1s11s : 1 S 0 3809.105
1s2p - 1snd 1s2p : 3 P ° 1 1s6d : 3 D 1-3 3819.61 100
1s2p - 1snd 1s2p : 3 P ° 0 1s6d : 3 D 1-3 3819.76 10
1s2p - 1snd 1s2p : 1 P ° 1 1s10d : 1 D 2 3833.55 4
1s2p - 1sns 1s2p : 1 P ° 1 1s10s : 1 S 0 3838.1 2
1s2p - 1sns 1s2p : 3 P ° 1 1s6s : 3 S 1 3867.475 30
1s2p - 1sns 1s2p : 3 P ° 0 1s6s : 3 S 1 3867.63 5
1s2p - 1snd 1s2p : 1 P ° 1 1s9d : 1 D 2 3871.79 5
1s2p - 1sns 1s2p : 1 P ° 1 1s9s : 1 S 0 3878.18 3
1s2s - 1snp 1s2s : 3 S 1 1s3p : 3 P ° 2 3888.65 100
1s2p - 1snd 1s2p : 1 P ° 1 1s8d : 1 D 2 3926.53 7
1s2p - 1sns 1s2p : 1 P ° 1 1s8s : 1 S 0 3935.91 4
1s2s - 1snp 1s2s : 1 S 0 1s4p : 1 P ° 1 3964.73 200
1s2p - 1snd 1s2p : 1 P ° 1 1s7d : 1 D 2 4009.27 10
1s2p - 1sns 1s2p : 1 P ° 1 1s7s : 1 S 0 4023.97 5
1s2p - 1snd 1s2p : 3 P ° 1 1s5d : 3 D 3-1 4026.19 500
1s2p - 1snd 1s2p : 3 P ° 0 1s5d : 3 D 3-1 4026.36 50
1s2p - 1sns 1s2p : 3 P ° 1 1s5s : 3 S 1 4120.815 120
1s2p - 1sns 1s2p : 3 P ° 0 1s5s : 3 S 1 4120.99 15
1s2p - 1snd 1s2p : 1 P ° 1 1s6d : 1 D 2 4143.76 30
1s2p - 1sns 1s2p : 1 P ° 1 1s6s : 1 S 0 4168.97 5
1s2p - 1snd 1s2p : 1 P ° 1 1s5d : 1 D 2 4387.93 100
1s2p - 1sns 1s2p : 1 P ° 1 1s5s : 1 S 0 4437.55 30
1s2p - 1snd 1s2p : 3 P ° 1 1s4d : 1 D 2 4471.48 200
1s2p - 1snd 1s2p : 3 P ° 0 1s4d : 1 D 2 4471.68 250
1s2p - 1sns 1s2p : 3 P ° 1 1s4s : 3 S 1 4713.15 300
1s2p - 1sns 1s2p : 3 P ° 0 1s4s : 3 S 1 4713.38 40
1s2p - 1snd 1s2p : 1 P ° 1 1s4d : 1 D 2 4921.93 200
1s2s - 1snp 1s2s : 1 S 0 1s3p : 1 P ° 1 5015.68 100
1s2p - 1sns 1s2p : 1 P ° 1 1s4s : 1 S 0 5047.74 100
1s2p - 1snd 1s2p : 3 P ° 1 1s3d : 1 D 2 5874.46 1500
1s2p - 1snd 1s2p : 3 P ° 1 1s3d : 3 D 2 5875.62 1500
1s2p - 1snd 1s2p : 3 P ° 0 1s3d : 3 D 1 5875.97 200
1s2p - 1snd 1s2p : 1 P ° 1 1s3d : 1 D 2 6678.15 2000
1s2p - 1snd 1s2p : 1 P ° 1 1s3d : 3 D 2 6679.68
1s2p - 1sns 1s2p : 3 P ° 2 1s3s : 3 S 1 7065.19 500
1s2p - 1sns 1s2p : 3 P ° 0 1s3s : 3 S 1 7065.71 600
1s2p - 1sns 1s2p : 1 P ° 1 1s3s : 1 S 0 7281.35 100
1s3s - 1snp 1s3s : 3 S 1 1s7p : 3 P ° 2-0 7816.15 10
1s3s - 1snp 1s3s : 3 S 1 1s6p : 3 P ° 2-0 8361.69 20
1s3p - 1snd 1s3p : 3 P ° 2 1s11d : 3 D 3-1 8444.48
1s3s - 1snp 1s3s : 1 S 0 1s8p : 1 P ° 1 8518.04
1s3d - 1snf 1s3d : 3 D 2 1s15f : 3 F ° 4-2 8528.99
1s3p - 1snd 1s3p : 3 P ° 1 1s11d : 3 D 3-1 8582.65
1s3d - 1snf 1s3d : 3 D 2 1s13f : 3 F ° 4-2 8648.26
1s3d - 1snf 1s3d : 3 D 2 1s12f : 3 F ° 4-2 8733.43
1s3p - 1snd 1s3p : 3 P ° 2 1s9d : 3 D 3-1 8776.74 5
1s3d - 1snf 1s3d : 3 D 2 1s11f : 3 F ° 4-2 8845.37 2
1s3s - 1snp 1s3s : 1 S 0 1s7p : 1 P ° 1 8914.74 5
1s3d - 1snf 1s3d : 3 D 2 1s10f : 3 F ° 4-2 8996.98 5
1s3p - 1snd 1s3p : 3 P ° 2 1s8d : 2 D 3-1 9063.27 15
1s3p - 1snd 1s3p : 1 P ° 1 1s10d : 1 D 2 9085.45 2
1s3p - 1sns 1s3p : 3 P ° 2 1s8s : 3 S 1 9174.52 5
1s3d - 1snf 1s3d : 3 D 2 1s9f : 3 F ° 4-2 9210.34 20
1s3d - 1snf 1s3d : 1 D 2 1s9f : 1 F ° 3 9213.1 2
1s3p - 1snd 1s3p : 1 P ° 1 1s9d : 1 D 2 9303.19 3
1s3s - 1snp 1s3s : 3 S 1 1s5p : 3 P ° 2-0 9463.61 100
1s3p - 1snd 1s3p : 3 P ° 2 1s7d : 3 D 3-1 9516.6 40
1s3p - 1snd 1s3p : 3 P ° 0 1s7d : 3 D 3-1 9516.87 3
1s3d - 1snf 1s3d : 3 D 2 1s8f : 3 F ° 4-2 9526.17 30
1s3d - 1snf 1s3d : 1 D 2 1s8f : 1 F ° 3 9529.27 10
1s3d - 1snp 1s3d : 3 D 3 1s8p : 3 P ° 2-0 9552.89 3
1s3s - 1snp 1s3s : 1 S 0 1s6p : 1 P ° 1 9603.42 10
1s3p - 1snd 1s3p : 1 P ° 1 1s8d : 1 D 2 9625.64 5
1s3p - 1sns 1s3p : 1 P ° 1 1s8s : 1 S 0 9682.19 2
1s3p - 1sns 1s3p : 3 P ° 1 1s7s : 3 S 1 9702.6 30
1s3d - 1snf 1s3d : 3 D 3 1s7f : 3 F ° 2-4 10027.73 60
1s3d - 1snf 1s3d : 3 D 1 1s7f : 1 F ° 3 10031.16 20
1s3d - 1snp 1s3d : 3 D 3 1s7p : 3 P ° 2-0 10072.04 5
1s3p - 1snd 1s3p : 1 P ° 1 1s7d : 1 D 2 10138.5 10
1s3p - 1sns 1s3p : 1 P ° 1 1s7s : 1 S 0 10233.06 3
1s3p - 1snd 1s3p : 3 P ° 2 1s6d : 3 D 1-3 10311.23 100
1s3p - 1snd 1s3p : 3 P ° 0 1s6d : 3 D 1-3 10311.54 15
1s3p - 1sns 1s3p : 3 P ° 2 1s6s : 3 S 1 10667.65 30
1s3p - 1sns 1s3p : 3 P ° 0 1s6s : 3 S 1 10667.98
1s2s - 1snp 1s2s : 3 S 1 1s2p : 1 P ° 1 10829.09 100
1s2s - 1snp 1s2s : 3 S 1 1s2p : 3 P ° 1 10830.25 300
1s2s - 1snp 1s2s : 3 S 1 1s2p : 3 P ° 2 10830.34 5000
1s3d - 1snp 1s3d : 1 D 2 1s6p : 1 P ° 1 10902.16
1s3d - 1snf 1s3d : 3 D 3 1s6f : 3 F ° 2-4 10912.92 120
1s3d - 1snf 1s3d : 1 D 2 1s6f : 1 F ° 3 10916.98 34
1s3d - 1snp 1s3d : 3 D 2 1s6p : 3 P ° 2-0 10996.56
1s3s - 1snp 1s3s : 1 S 0 1s5p : 1 P ° 1 11013.07 16
1s3p - 1snd 1s3p : 1 P ° 1 1s6d : 1 D 2 11045 17
1s3p - 1sns 1s3p : 1 P ° 1 1s6s : 1 S 0 11225.9
1s3p - 1snd 1s3p : 3 P ° 1 1s5d : 3 D 3-1 11969.07 440
1s3p - 1snd 1s3p : 3 P ° 0 1s5d : 3 D 3-1 11969.48
1s3s - 1snp 1s3s : 3 S 1 1s4p : 3 P ° 2-0 12527.51 100
1s3d - 1snp 1s3d : 1 D 2 1s5p : 1 P ° 1 12755.66
1s3d - 1snf 1s3d : 3 D 2 1s5f : 3 F ° 4-2 12784.79 810
1s3d - 1snf 1s3d : 1 D 2 1s5f : 1 F ° 3 12790.27 250
1s3p - 1sns 1s3p : 3 P ° 1 1s5s : 3 S 1 12845.95 61
1s2p - 1sns 1s2p : 3 P ° 0 1s5s : 3 S 1 12846.42
1s3p - 1snd 1s3p : 1 P ° 1 1s5d : 1 D 2 12968.44 100
1s3d - 1snp 1s3d : 1 D 2 1s4p : 1 P ° 1 18555.55 13
1s3d - 1snf 1s3d : 1 D 2 1s4f : 1 F ° 3 18606.94 317
1s3d - 1snf 1s3d : 3 D 2 1s4f : 3 F ° 4-2 18685.96 725
1s3p - 1snd 1s3p : 1 P ° 1 1s4d : 1 D 2 19089.37 1100
1s3d - 1snp 1s3d : 3 D 2 1s4p : 3 P ° 2-0 19543.13 130
1s3p - 1sns 1s3p : 3 P ° 1 1s6s : 3 S 1 19667.65 30
1s2s - 1snp 1s2s : 3 S 1 1s2p : 1 P ° 1 20581.3
1s3p - 1sns 1s3p : 3 P ° 1 1s4s : 3 S 1 21120 600
1s3p - 1sns 1s3p : 3 P ° 0 1s4s : 3 S 1 21121.3
1s3p - 1sns 1s3p : 1 P ° 1 1s4s : 1 S 0 21132 95