Lifetime measurement of the T =23 537 cm sup minus 1 , J =9/2 odd-parity level in Nd II using time-resolved collinear fast-beam laser spectroscopy

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Physical Review, A; (USA)

DOI:https://doi.org/10.1103/PhysRevA.43.1451· OSTI ID:5866276

Wei, S; Fuquan, Lu; Songmao, Wu; Peixiong, Shi; Jianjun, Yang; Linggen, Song; Jiayong, T ^[1]; Fujia, Y ^[2]

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1. Department of Nuclear Science, Fudan University, Shanghai, People's Republic of China (CN)
2. Department of Nuclear Science, Fudan University, Shanghai, People's Republic of China Chinese Center of Advanced Science and Technology (World Laboratory), Beijing, People's Republic of China

Time-resolved collinear fast-beam laser spectroscopy has been used to measure the lifetime of the {ital T}=23 537 cm{sup {minus}1}, {ital J}=9/2 odd-parity (abbreviated as (23 537){degree}{sub 9/2}) level in Nd II. Nanosecond pulsed excitation was achieved with the Doppler switching technique. The fast ions were selectively excited from the metastable 4{ital f}{sup 4}5{ital d} {sup 6}{ital K}{sub 9/2} level to the (23 537){degree}{sub 9/2} level by the light of a cw dye laser. The decay of the resonance fluorescence photons emitted in the transition to the ground 4{ital f}{sup 4}6{ital s} {sup 6}{ital I}{sub 7/2} level, as a function of the flight distance, was observed. The decay length was scaled into the decay time by the ion velocity, which was determined using the optical resonance itself. The lifetime is 27.7(9) ns.

• OSTI ID: 5866276
• Journal Information: Physical Review, A; (USA), Journal Name: Physical Review, A; (USA) Vol. 43:3; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
BEAMS
CHARGED PARTICLES
DATA
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
EXPERIMENTAL DATA
FLUORESCENCE
INFORMATION
ION BEAMS
IONS
KEV RANGE
LASER SPECTROSCOPY
LIFETIME
LUMINESCENCE
NEODYMIUM IONS
NUMERICAL DATA
PULSES
RESONANCE FLUORESCENCE
SPECTROSCOPY
TIME-OF-FLIGHT METHOD