Bound internal conversion versus nuclear excitation by electron transition: Revision of the theory of optical pumping of the 
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 isomer

Karpeshin, F. F.; Trzhaskovskaya, M. B.

doi:10.1103/physrevc.95.034310

Cited by 25 publications

(16 citation statements)

References 33 publications

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“…The highest calculated EB excitation rates occur for an 8s to 7s shell transition. The same process was also discussed in [172] in comparison to NEET as defined in terms of the diagram shown in Fig. 40b (note that the expressions "reverse resonance conversion" and "reverse bound internal conversion" are frequently used as synonyms for EB excitation).…”

Section: A31 Electronic Bridge Excitationmentioning

confidence: 97%

“…Importantly, the EB excitation, although a high-order process, is expected to possess a larger efficiency than the isomer's direct excitation. It has therefore been the subject of significant theoretical investigations (important publications along this line are [155,159,160,163,170,172,274,353,355,357,362]). Further, it is a relevant excitation channel for many experimental concepts.…”

Section: Population Via Eb Excitationmentioning

confidence: 99%

“…For the two-step EB process, shown in Fig. 39, the excitation rate for fixed final state (c) is [170,172] Γ eb (c) 2-step = ρ (b) exc Γ eb (c) exc .…”

Section: A31 Electronic Bridge Excitationmentioning

confidence: 99%

“…(15). In [170,172], the low-saturation limit defined by the condition ρ (b) exc 1 was discussed. In this limit and considering the population of state (b) to be in equilibrium, Fig.…”

Section: A31 Electronic Bridge Excitationmentioning

confidence: 99%

“…It was then proposed in [172] to clearly distinguish between NEET and EB excitation (BIC was used as a synonym for EB exc. ): EB processes were considered as those in which a virtual electronic level is populated before nuclear excitation, whereas in NEET processes the virtual level is populated after nuclear excitation.…”

Section: A32 Nuclear Excitation By Electron Transitionmentioning

confidence: 99%

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The $$^{229}$$Th isomer: prospects for a nuclear optical clock

Wense

2020

Eur. Phys. J. A

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The proposal for the development of a nuclear optical clock has triggered a multitude of experimental and theoretical studies. In particular the prediction of an unprecedented systematic frequency uncertainty of about $$10^{-19}$$ 10 - 19 has rendered a nuclear clock an interesting tool for many applications, potentially even for a re-definition of the second. The focus of the corresponding research is a nuclear transition of the $$^{229}$$ 229 Th nucleus, which possesses a uniquely low nuclear excitation energy of only $$8.12\pm 0.11$$ 8.12 ± 0.11 eV ($$152.7\pm 2.1$$ 152.7 ± 2.1 nm). This energy is sufficiently low to allow for nuclear laser spectroscopy, an inherent requirement for a nuclear clock. Recently, some significant progress toward the development of a nuclear frequency standard has been made and by today there is no doubt that a nuclear clock will become reality, most likely not even in the too far future. Here we present a comprehensive review of the current status of nuclear clock development with the objective of providing a rather complete list of literature related to the topic, which could serve as a reference for future investigations.

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Section: A31 Electronic Bridge Excitationmentioning

confidence: 97%

Section: Population Via Eb Excitationmentioning

confidence: 99%

“…For the two-step EB process, shown in Fig. 39, the excitation rate for fixed final state (c) is [170,172] Γ eb (c) 2-step = ρ (b) exc Γ eb (c) exc .…”

Section: A31 Electronic Bridge Excitationmentioning

confidence: 99%

“…(15). In [170,172], the low-saturation limit defined by the condition ρ (b) exc 1 was discussed. In this limit and considering the population of state (b) to be in equilibrium, Fig.…”

Section: A31 Electronic Bridge Excitationmentioning

confidence: 99%

Section: A32 Nuclear Excitation By Electron Transitionmentioning

confidence: 99%

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