NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Strong Lines of Helium ( He )


Intensity      Wavelength (Å)     Spectrum   Ref. 
 
                 Vacuum
 
   15    c       231.4541         He II      GM65
   20    c       232.5842         He II      GM65
   30    c       234.3472         He II      GM65
   50    c       237.3307         He II      GM65
  100    c       243.0266         He II      GM65
  300    P       256.3166         He II      MK00b
  150    P       256.3177         He II      MK00b
 1000    P       303.7804         He II      MK00b
  500    P       303.7858         He II      MK00b
   10            320.293          He I       TW71
    2            505.50035        He I       M02
    3            505.68433        He I       M02
    4            505.91252        He I       M02
    5            506.20034        He I       M02
    7            506.57057        He I       M02
   10            507.05802        He I       M02
   15            507.71809        He I       M02
   20            508.64338        He I       M02
   25            509.99829        He I       M02
   35            512.09856        He I       M02
   50            515.61684        He I       M02
  100    P       522.21309        He I       M02
  400    P       537.02992        He I       M02
 1000    P       584.33436        He I       M02
   50            591.41207        He I       M02
    5    c       958.70           He II      GM65
    6    c       972.11           He II      GM65
    8    c       992.36           He II      GM65
   15    c      1025.27           He II      GM65
   30    c      1084.94           He II      GM65
   35           1215.09           He II      GM65
   50    c      1215.17           He II      GM65
  120    P      1640.3321         He II      MK00b
   50    P      1640.3447         He II      MK00b
    7    P      1640.3750         He II      MK00b
   25    P      1640.3914         He II      MK00b
  180    P      1640.4742         He II      MK00b
   25    P      1640.4897         He II      MK00b
   15    P      1640.5326         He II      MK00b
 
                  Air
 
    7    c      2385.40           He II      GM65
    9    c      2511.20           He II      GM65
    1           2723.19           He I       M60a
   12    c      2733.30           He II      GM65
    2           2763.80           He I       M60a
   10           2818.2            He I       BDD72
    4           2829.08           He I       M60a
   10           2945.11           He I       M60a
   40           3013.7            He I       BDD72
   20           3187.74           He I       M60a
   15    c      3203.10           He II      GM65
    1           3354.55           He I       M60a
    2           3447.59           He I       M60a
    1           3587.27           He I       M60a
    3           3613.64           He I       M60a
    2           3634.23           He I       M60a
    3           3705.00           He I       M60a
    1           3732.86           He I       M60a
   10           3819.607          He I       M60a
    1           3819.76           He I       M60a
   60    P      3888.6046         He I       M02
  200    P      3888.6456         He I       M02
  300    P      3888.6489         He I       M02
   20           3964.729          He I       M60a
    1           4009.27           He I       M60a
   50           4026.191          He I       M60a
    5           4026.36           He I       M60a
   12           4120.82           He I       M60a
    2           4120.99           He I       M60a
    3           4143.76           He I       M60a
   10           4387.929          He I       M60a
    3           4437.55           He I       M60a
  200           4471.479          He I       M60a
   25           4471.68           He I       M60a
    4    P,c    4685.3769         He II      MK00b
    3    P,c    4685.4072         He II      MK00b
   15*   P,c    4685.7038         He II      MK00b
   15*   P,c    4685.7044         He II      MK00b
   12    P,c    4685.8041         He II      MK00b
   30           4713.146          He I       M60a
    4           4713.38           He I       M60a
   20           4921.931          He I       M60a
  100           5015.678          He I       M60a
   10           5047.74           He I       M60a
    5    c      5411.52           He II      GM65
  500    P      5875.6148         He I       M02
  250    P      5875.6404         He I       M02
  120    P      5875.9663         He I       M02
    8    c      6560.10           He II      GM65
  200    P      6678.1517         He I       M02
    3           6867.48           He I       M60a
  100    P      7065.1771         He I       M02
   60    P      7065.2153         He I       M02
   20    P      7065.7086         He I       M02
   50           7281.35           He I       M60a
    1           7816.15           He I       M60a
    2           8361.69           He I       M60a
    2           9063.27           He I       M60a
    2           9210.34           He I       M60a
   10           9463.61           He I       M60a
    4           9516.60           He I       M60a
    3           9526.17           He I       M60a
    1           9529.27           He I       M60a
    1           9603.42           He I       M60a
    3           9702.60           He I       M60a
    6          10027.73           He I       M60a
    2          10031.16           He I       M60a
   15    c     10123.6            He II      GM65
    1          10138.50           He I       M60a
   10          10311.23           He I       M60a
    2          10311.54           He I       M60a
    3          10667.65           He I       M60a
  150    P     10829.0911         He I       M02
  500    P     10830.2501         He I       M02
 1000    P     10830.3398         He I       M02
    9          10913.05           He I       L70a
    3          10917.10           He I       L70a
    4    c     11626.4            He II      GM65
   30          11969.12           He I       L70a
   20          12527.52           He I       L70a
   50          12784.99           He I       L70a
   20          12790.57           He I       L70a
    7          12845.96           He I       L70a
   10          12968.45           He I       L70a
    2          12984.89           He I       L70a
   12          15083.64           He I       L70a
  200          17002.47           He I       L70a
    1          18555.55           He I       M60a
    6    c     18636.8            He II      GM65
  500          18685.34           He I       L70a
  200          18697.23           He I       L70a
  100          19089.38           He I       L70a
   20          19543.08           He I       L70a
  500    P     20581.287          He I       M02
   80          21120.07           He I       L70a
   10          21121.43           He I       L70a
   20          21132.03           He I       L70a
    3    c     30908.5            He II      GM65
    4          40478.90           He I       L70a

Homepage - IntroductionFinding listSelect element by name.Select element by atomic number.Select element from periodic tableHelium Atomic DataHelium Strong LinesHelium Neutral Atom Persistent Lines Helium Neutral Atom Energy LevelsHelium Singly Ionized Persistent LinesHelium Singly Ionized Energy LevelsHelium References
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