Doppler-Shift Attenuation Measurements of Lifetimes for (2s,1d)-Shell Nuclei Excited by Heavy-Ion Bombardment ofH2

1973 ◽  
Vol 7 (3) ◽  
pp. 1120-1132 ◽  
Author(s):  
E. K. Warburton ◽  
J. W. Olness ◽  
G. A. P. Engelbertink ◽  
T. K. Alexander
Keyword(s):  
Doppler Shift ◽  
Ion Bombardment ◽  
Heavy Ion ◽  
Doppler Shift Attenuation

scholarly journals Theory of RBE for Heavy Ion Bombardment of Dry Enzymes and Viruses

1967 ◽  
Vol 30 (4) ◽  
pp. 855 ◽  
Author(s):  
J. J. Butts ◽  
Robert Katz
Keyword(s):  
Ion Bombardment ◽  
Heavy Ion

Lifetimes of excited states in Cu63, Cu65, Ni62 and Fe56 by Doppler shift attenuation measurements

1965 ◽  
Vol 66 (2) ◽  
pp. 401-418 ◽  
Author(s):  
M.A. Eswaran ◽  
H.E. Gove ◽  
A.E. Litherland ◽  
C. Broude
Keyword(s):  
Excited States ◽  
Doppler Shift ◽  
Doppler Shift Attenuation

Metamictization by Heavy Ion Bombardment of α-Quartz, Zircon, Monazite and Nitride Structures

1981 ◽  
pp. 421-427 ◽  
Author(s):  
L. Cartz ◽  
F. G. Karioris ◽  
R. A. Fournelle ◽  
K. Appaji Gowda ◽  
K. Ramasami ◽  
...  
Keyword(s):  
Ion Bombardment ◽  
Heavy Ion

Superconducting Effects in Rapidly Quenched Materials Formed by Ion and Laser Bombardment

1981 ◽  
Vol 4 ◽  
Author(s):  
Bernd Stritzker
Keyword(s):  
Electron Beam ◽  
Low Temperature ◽  
Electron Beam Irradiation ◽  
Pulsed Laser ◽  
Ion Bombardment ◽  
Heavy Ion ◽  
Superconducting Properties ◽  
Beam Irradiation ◽  
Metastable Alloys ◽  
Vapor Quenching

ABSTRACTThe application of low temperature ion bombardment and pulsed laser or electron beam irradiation for the production of rapidly quenched superconducting alloys is described and compared with other more conventionally used non-equilibrium techniques. The comparison is based on the identification of the metastable phases produced by their specific electrical and superconducting properties. It is concluded that low temperature heavy ion bombardment is comparable with vapor quenching whereas laser quenching yields results similar to liquid quenching. Finally, the interesting superconducting properties of these rapidly quenched metastable alloys are discussed.

scholarly journals A Search for an Excited Kp=0+ Rotational Band in 24Mg

1976 ◽  
Vol 29 (3) ◽  
pp. 139 ◽  
Author(s):  
D Branford ◽  
LE Carlson ◽  
FCP Huang ◽  
N Gardner ◽  
TR Ophel ◽  
...  
Keyword(s):  
Shell Model ◽  
Quadrupole Moment ◽  
Rotational Band ◽  
Doppler Shift ◽  
Transition Rates ◽  
Model Calculations ◽  
Doppler Shift Attenuation ◽  
Doppler Shift Attenuation Method ◽  
Absolute Transition ◽  
Good Agreement

A search is described for an excited Kn = 0+ rotational band based on the 6� 44 MeV level of 24Mg. Mean nuclear lifetimes have been measured by the Doppler shift attenuation method using the 12C('60,a)24Mg reaction and the results are 't'm = 66�29, 28�7 and 13�3 fs for levels at 6'44, 8�65 and 10� 58 MeV respectively. The absolute transition rates found for the y decays from the 6�44 and 8�65 MeV levels are in good agreement with the results of shell model calculations if it is assumed that these levels are the 0+ and 2 + members respectively of the excited Kn = 0+ rotational band. Based on this assumption, a result Qoo = 0�48 �0�08b is obtained for the intraband quadrupole moment. From a study of the 23Na(p, y) reaction, it is established that the J = 4 levels at 12� 63 and 13�05 MeV do not decay by enhanced E2 transitions to the 8� 65 MeV level. This suggests that neither of these levels is the 4 + member of the excited Kn = 0+ rotational band. An assignment of J" = 4+ is made to one member of the doublet at 10�58 MeV.

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