Measurement of the 4/sup 2/S/sub 1/2/-4/sup 2/P/sub 1/2/ lamb shift in He/sup +/

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5979158

Bollinger, J J

The separated oscillatory field technique is used with a fast 120 keV He/sup +/ beam and a miniature microwave spectroscopy region to make a zero magnetic field measurement of the n=4 Lamb shift interval in He/sup +/. The result of the measurement, 1769.16(0.84)MHz, is an agreement with the theoretical calculations and the previous experimental determinations. The experimental uncertainty is dominated by systematic effects attributed to the presence of overlapping cascade signals. A study of these systematic effects was made and at present an understanding of them is incomplete. With more experimental data, it is believed that these systematic effects can be understood. With an understanding of these systematic effects, a measurement uncertainty of 0.17MHz (100 ppM) can readily be obtained.

• Research Organization: Harvard Univ., Boston, MA (USA)
• OSTI ID: 5979158
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
BEAMS
CATIONS
CHARGED PARTICLES
DATA
ENERGY RANGE
EXPERIMENTAL DATA
HELIUM IONS
INFORMATION
ION BEAMS
IONS
KEV RANGE
KEV RANGE 100-1000
LAMB SHIFT
NUMERICAL DATA
SPECTRAL SHIFT
SPECTROSCOPY