RESEARCH ON THE LEVELS OF HE BY OPTICAL SPECTROSCOPY AT LOW TEMPERATURE

[11] HANSEN G, 1929, VERH DTSCH PHYS GES, V10, P5

[12] The spectrums of atomic systems with two electrons [J]. ZEITSCHRIFT FUR PHYSIK, 1926, 39 (7/8): : 499 - 518

[13] The fine structure of the helium arc spectrum [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1927, 13 : 91 - 94

[14] HOUSTON WV, 1927, PHYS REV, V29, P749

[15] MICROWAVE TECHNIQUE FOR DETERMINING THE FINE STRUCTURE OF THE HELIUM ATOM [J]. PHYSICAL REVIEW, 1957, 105 (02): : 559 - 572

[16] MEASUREMENT OF THE FINE STRUCTURE SEPARATION 3-P-3(1)-3-P-3(2) FOR THE HELIUM ATOM [J]. PHYSICAL REVIEW, 1957, 105 (02): : 573 - 579

[17] MEGGERS WF, 1935, J RES NBS, V14, P487

[11] HANSEN G, 1929, VERH DTSCH PHYS GES, V10, P5

[12] The spectrums of atomic systems with two electrons [J]. ZEITSCHRIFT FUR PHYSIK, 1926, 39 (7/8): : 499 - 518

[13] The fine structure of the helium arc spectrum [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1927, 13 : 91 - 94

[14] HOUSTON WV, 1927, PHYS REV, V29, P749

[15] MICROWAVE TECHNIQUE FOR DETERMINING THE FINE STRUCTURE OF THE HELIUM ATOM [J]. PHYSICAL REVIEW, 1957, 105 (02): : 559 - 572

[16] MEASUREMENT OF THE FINE STRUCTURE SEPARATION 3-P-3(1)-3-P-3(2) FOR THE HELIUM ATOM [J]. PHYSICAL REVIEW, 1957, 105 (02): : 573 - 579

[17] MEGGERS WF, 1935, J RES NBS, V14, P487