Excitation energy dependence of the level density for fissionable nuclei

1979 ◽  
Vol 19 (6) ◽  
pp. 2267-2273 ◽  
Author(s):  
N. Cârjan ◽  
H. Delagrange ◽  
A. Fleury
Keyword(s):  
Excitation Energy ◽  
Energy Dependence ◽  
Level Density

scholarly journals Fluorescence Property and its Magnetic Field Dependence Across the Photodissociation Threshold of CH3CHO and CD3CDO in a Supersonic Jet

1994 ◽  
Vol 13 (3-4) ◽  
pp. 207-222 ◽  
Author(s):  
Nobuhiro Ohta
Keyword(s):  
Magnetic Field ◽  
Excitation Energy ◽  
Triplet State ◽  
Energy Dependence ◽  
Level Density ◽  
Excess Energy ◽  
Zero Field ◽  
Statistical Limit ◽  
Fluorescence Characteristics ◽  
Dissociation Threshold

Fluorescence characteristics of jet-cooled acetaldehyde at zero field is confirmed to change from the small molecule behavior to the statistical limit behavior in CH3CHO and to the intermediate case in CD3CDO, as the excitation energy increases across the dissociation threshold located below 320 nm. The excitation energy dependence both of the intensity and of the lifetime of the slow fluorescence shows that the dissociation rate becomes faster abruptly with increasing excess energy above the threshold, and the excess energy dependence above the threshold seems to be more drastic in CH3CHO than in CD3CDO. External magnetic field as well as the dissociation in the triplet state plays a role to increase the level density of the triplet state coupled to S1. On excitation below the dissociation threshold, the magnetic quenching of fluorescence becomes more efficient with increasing excess energy and the efficiency of the quenching is larger in CD3CDO than that in CH3CHO by a factor of about 2. On excitation above the threshold, however, the efficiency becomes lower with increasing excitation energy. Thus, the magnetic field effects on fluorescence also change drastically across the dissociation threshold.

Excitation energy dependence of the level density parameter close to the doubly magic Pb208

2016 ◽  
Vol 94 (6) ◽  
Author(s):  
Pratap Roy ◽  
K. Banerjee ◽  
C. Bhattacharya ◽  
R. Pandey ◽  
A. Sen ◽  
...  
Keyword(s):  
Excitation Energy ◽  
Energy Dependence ◽  
Level Density ◽  
Density Parameter ◽  
Level Density Parameter

Resonant Secondary Emission and Its Excitation Energy Dependence in Monoclinic Zinc Diphosphide

1994 ◽  
Vol 63 (11) ◽  
pp. 4249-4255 ◽  
Author(s):  
Osamu Arimoto ◽  
Mitsuru Sugisaki ◽  
Kaizo Nakamura ◽  
Koichiro Tanaka ◽  
Tohru Suemoto
Keyword(s):  
Excitation Energy ◽  
Energy Dependence ◽  
Secondary Emission ◽  
Zinc Diphosphide

Subpicosecond dynamic Stokes shift in β-carotene solution probed by excitation energy dependence of fluorescence spectrum

1993 ◽  
Vol 213 (3-4) ◽  
pp. 351-355 ◽  
Author(s):  
Junji Watanabe ◽  
Hirokazu Takahashi ◽  
Juníchiro Nakahara ◽  
Takashi Kushida
Keyword(s):  
Excitation Energy ◽  
Fluorescence Spectrum ◽  
Energy Dependence ◽  
Stokes Shift ◽  
Β Carotene

Intravalley Scattering Probed by Excitation Energy Dependence of Valley Polarization in Monolayer MoS2

2021 ◽  
Author(s):  
Eito Asakura ◽  
Takeshi Odagawa ◽  
Masaki Suzuki ◽  
Shutaro Karube ◽  
Junsaku Nitta ◽  
...  
Keyword(s):  
Excitation Energy ◽  
Energy Dependence ◽  
Monolayer Mos2 ◽  
Valley Polarization
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