Abstract
The nuclei {sup 144,145,146}Gd have been populated at high spins using heavy ion reactions at the VICKSI accelerator of the Hahn-Meitner-Institut in Berlin. The {gamma}{gamma}-coincidences measured with the OSIRIS spectrometer have been analysed. The nucleus {sup 146}Gd has been populated using a {sup 110}Pd({sup 40}Ar,4n){sup 146}Gd reaction. In addition to the known superdeformed (SD) yrast band an excited SD band which has an intensity of {approx}0,7% was found. Different from the yrast SD band, the constant dynamic moment of inertia {Theta}{sup (2)}{approx}71,0h{sup 2}/MeV of the excited SD band shows no indication of a band crossing. From a DSAM analysis the lifetimes of the SD states were determined and an average quadrupole moment for the excited SD band of Q{sub 0}=8{+-}2 eb was deduced. The nucleus can be described as a static rotor with an axis ration of (c/a)=1,41(10). High-spin states in {sup 145}Gd have been investigated through the {sup 110}Pd({sup 40}Ar,5n) reaction. Two SD bands have been established in this reaction. At least one of them can be assigned to the nucleus {sup 145}Gd. The high-spin states in {sup 144}Gd were populated using an {sup 108}Pd({sup 40}Ar,5n) reaction. In this reaction two SD bands were found. One of the bands
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Citation Formats
Straehle, K.
Superdeformation in {sup 144,145,146}Gd and development of a capsuled Ge detector; Superdeformation in {sup 144,145,146}Gd und Entwicklung eines gekapselten Ge-Detektors.
Germany: N. p.,
1993.
Web.
Straehle, K.
Superdeformation in {sup 144,145,146}Gd and development of a capsuled Ge detector; Superdeformation in {sup 144,145,146}Gd und Entwicklung eines gekapselten Ge-Detektors.
Germany.
Straehle, K.
1993.
"Superdeformation in {sup 144,145,146}Gd and development of a capsuled Ge detector; Superdeformation in {sup 144,145,146}Gd und Entwicklung eines gekapselten Ge-Detektors."
Germany.
@misc{etde_10121536,
title = {Superdeformation in {sup 144,145,146}Gd and development of a capsuled Ge detector; Superdeformation in {sup 144,145,146}Gd und Entwicklung eines gekapselten Ge-Detektors}
author = {Straehle, K}
abstractNote = {The nuclei {sup 144,145,146}Gd have been populated at high spins using heavy ion reactions at the VICKSI accelerator of the Hahn-Meitner-Institut in Berlin. The {gamma}{gamma}-coincidences measured with the OSIRIS spectrometer have been analysed. The nucleus {sup 146}Gd has been populated using a {sup 110}Pd({sup 40}Ar,4n){sup 146}Gd reaction. In addition to the known superdeformed (SD) yrast band an excited SD band which has an intensity of {approx}0,7% was found. Different from the yrast SD band, the constant dynamic moment of inertia {Theta}{sup (2)}{approx}71,0h{sup 2}/MeV of the excited SD band shows no indication of a band crossing. From a DSAM analysis the lifetimes of the SD states were determined and an average quadrupole moment for the excited SD band of Q{sub 0}=8{+-}2 eb was deduced. The nucleus can be described as a static rotor with an axis ration of (c/a)=1,41(10). High-spin states in {sup 145}Gd have been investigated through the {sup 110}Pd({sup 40}Ar,5n) reaction. Two SD bands have been established in this reaction. At least one of them can be assigned to the nucleus {sup 145}Gd. The high-spin states in {sup 144}Gd were populated using an {sup 108}Pd({sup 40}Ar,5n) reaction. In this reaction two SD bands were found. One of the bands belongs definitely to the nucleus {sup 144}Gd. An extended level scheme is proposed. (orig.)}
place = {Germany}
year = {1993}
month = {Jun}
}
title = {Superdeformation in {sup 144,145,146}Gd and development of a capsuled Ge detector; Superdeformation in {sup 144,145,146}Gd und Entwicklung eines gekapselten Ge-Detektors}
author = {Straehle, K}
abstractNote = {The nuclei {sup 144,145,146}Gd have been populated at high spins using heavy ion reactions at the VICKSI accelerator of the Hahn-Meitner-Institut in Berlin. The {gamma}{gamma}-coincidences measured with the OSIRIS spectrometer have been analysed. The nucleus {sup 146}Gd has been populated using a {sup 110}Pd({sup 40}Ar,4n){sup 146}Gd reaction. In addition to the known superdeformed (SD) yrast band an excited SD band which has an intensity of {approx}0,7% was found. Different from the yrast SD band, the constant dynamic moment of inertia {Theta}{sup (2)}{approx}71,0h{sup 2}/MeV of the excited SD band shows no indication of a band crossing. From a DSAM analysis the lifetimes of the SD states were determined and an average quadrupole moment for the excited SD band of Q{sub 0}=8{+-}2 eb was deduced. The nucleus can be described as a static rotor with an axis ration of (c/a)=1,41(10). High-spin states in {sup 145}Gd have been investigated through the {sup 110}Pd({sup 40}Ar,5n) reaction. Two SD bands have been established in this reaction. At least one of them can be assigned to the nucleus {sup 145}Gd. The high-spin states in {sup 144}Gd were populated using an {sup 108}Pd({sup 40}Ar,5n) reaction. In this reaction two SD bands were found. One of the bands belongs definitely to the nucleus {sup 144}Gd. An extended level scheme is proposed. (orig.)}
place = {Germany}
year = {1993}
month = {Jun}
}