isomeric transition
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scholarly journals Direct Two-Photon Excitation of Isomeric Transition in Thorium-229 Nucleus

2021 ◽  
Vol 57 (11) ◽  
pp. 1119
Author(s):  
V.I. Romanenko ◽  
Ye.G. Udovitskaya ◽  
L.P. Yatsenko ◽  
A.V. Romanenko ◽  
A.N. Litvinov ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Monochromatic Light ◽  
Fluorescence Emission ◽  
Isomeric Transition ◽  
Absorption Saturation ◽  
Two Photon ◽  
Photon Excitation ◽  
Polychromatic Radiation ◽  
Electromagnetic Trap ◽  
Two Photon Excitation

A possibility of the two-photon excitation of an isomeric state in a nucleus of thorium-229 has been discussed. The fluorescence intensity of the excitation is demonstrated to be identical for the irradiation of nuclei with either monochromatic light or polychromatic radiation consisting of a sequence of short lightpulses of the same intensity. The two-photon excitation of Th3+ ion in an electromagnetic trap with a focused laser beam with a wavelength of about 320 nm and power of 100 mW can lead to the absorption saturation, at which the fluorescence emission with the frequency of the transition in a nucleus is maximal. In crystals doped with Th4+ to a concentration of about 1018 cm-3 and irradiated with a laser radiation 10 W in power, the emission of several photons persecond with a wavelength of about 160 nm becomes possible.

scholarly journals Direct Search for Low Energy Nuclear Isomeric Transition of Th-229m With TES Detector

2021 ◽  
Vol 31 (5) ◽  
pp. 1-4
Author(s):  
Mariia Fedkevych ◽  
Michele Biasotti ◽  
Matteo De Gerone ◽  
Lorenzo Ferrari Barusso ◽  
Giovanni Gallucci ◽  
...  
Keyword(s):  
Direct Search ◽  
Low Energy ◽  
Isomeric Transition

scholarly journals Results of a Direct Search Using Synchrotron Radiation for the Low-EnergyTh229Nuclear Isomeric Transition

2015 ◽  
Vol 114 (25) ◽  
Author(s):  
Justin Jeet ◽  
Christian Schneider ◽  
Scott T. Sullivan ◽  
Wade G. Rellergert ◽  
Saed Mirzadeh ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Direct Search ◽  
Isomeric Transition

scholarly journals Observation of M3 isomeric transition from 156mPm through the βdecay of 156Nd

2007 ◽  
Vol 31 (2) ◽  
pp. 171-176 ◽  
Author(s):  
M. Shibata ◽  
O. Suematsu ◽  
Y. Kojima ◽  
K. Kawade ◽  
A. Taniguchi ◽  
...  
Keyword(s):  
Isomeric Transition

Search for the decay of 229mTh by photon detection

2005 ◽  
Vol 93 (9-10) ◽  
Author(s):  
Yoshitaka Kasamatsu ◽  
Hidetoshi Kikunaga ◽  
Koichi Takamiya ◽  
Toshiaki Mitsugashira ◽  
Takashi Nakanishi ◽  
...  
Keyword(s):  
Isomeric Transition ◽  
Photon Detection

SummaryA search for the isomeric transition of

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