Común · Saberes
reloj nuclear
Un reloj basado en un núcleo atómico en lugar de un átomo. Las influencias externas (temperatura, campo magnético, etc.) se minimizan.
A nuclear clock or nuclear optical clock is an atomic clock which uses photons from a nuclear isomeric transition as its reference frequency, instead of the atomic electron transition energy used by conventional atomic clocks. Such a clock is expected to be more precise than the best current atomic clocks by a factor of about 10, with an achievable precision approaching the 10−19 level.
En Wikipedia
Texto en inglés Aún no hay artículo en tu idioma: extracto en inglés.
A nuclear clock or nuclear optical clock is an atomic clock which uses photons from a nuclear isomeric transition as its reference frequency, instead of the atomic electron transition energy used by conventional atomic clocks. Such a clock is expected to be more precise than the best current atomic clocks by a factor of about 10, with an achievable precision approaching the 10−19 level. The only nuclear state suitable for the development of a nuclear clock using existing technology is thorium-229m, an isomer of thorium-229 and the lowest-energy nuclear isomer known. With an energy of 8.355733554021(8) eV, this corresponds to a frequency of 2020407384335±2 kHz, or wavelength of 148.382182883 nm, in the vacuum ultraviolet region, making it accessible to laser excitation.
Texto: Wikipedia en inglés, CC BY-SA 4.0. · Imagen: LarsvdW (CC BY-SA 4.0) ·
Cartas cercanas
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Optical clock
Type of atomic clock
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Rubidium standard
Frequency standard
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Reloj
Instrumento para medir el tiempo natural
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Caesium standard
Primary frequency standard in which the photon absorption by transitions between the two hyperfine ground states of caesium-133 atoms is used to control the output frequency
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Reloj atómico
Tipo de reloj basado en la frecuencia de resonancia atómica normal
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Reloj de cuarzo
Reloj con una pieza de cuarzo que sirve para generar impulsos a intervalos regulares