Multipole mixing ratios of the 198 and 177 keV γ-ray transitions in 169Tm
Identifieur interne : 001828 ( Pascal/Corpus ); précédent : 001827; suivant : 001829Multipole mixing ratios of the 198 and 177 keV γ-ray transitions in 169Tm
Auteurs : C. C. Dey ; B. K. SinhaSource :
- Physical Review C (Nuclear Physics) [ 0556-2813 ] ; 1994-01.
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Abstract
The multipole mixing ratios for the 198 and 177 keV γ-ray transitions in 169Tm are determined as δ(198) = -6.1-0.6+0.4 and δ(177) = -0.20-0.03+0.04 from new measurements of angular correlation of the 63-198 and 63-177 keV cascades in addition to measurements on the cascades passing through the 118 and 139 keV levels. The present value of δ(198) indicates an almost pure E2 character for the 198 keV γ ray while from earlier measurements an admixture of only 9% E2 was reported for this γ ray. For both the 198 and 177 keV transitions the results do not agree with the conversion electron measurements and indicate that the conversion processes in these transitions are not normal. From time-differential measurement on the 63-198 keV cascade, the relaxation constant λ2 = (0.31*.+.or.-.*0.21)×107 sec-1 is obtained using the source in acetic acid solution. The integral attenuation coefficients for the 316 keV level are found to be G2 = 0.19*.+.or.-.*0.04 in liquid chloride source and G2 = 0.57*.+.or.-.*0.06 in liquid acetate source.
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| NO : | PASCAL 94-0252521 AIP |
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| ET : | Multipole mixing ratios of the 198 and 177 keV γ-ray transitions in 169Tm |
| AU : | DEY (C. C.); SINHA (B. K.) |
| AF : | Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Calcutta-700 064, India (1 aut., 2 aut.) |
| DT : | Publication en série; Courte communication, note brève; Niveau analytique |
| SO : | Physical Review C (Nuclear Physics); ISSN 0556-2813; Coden PRVCAN; Etats-Unis; Da. 1994-01; Vol. 49; No. 1; Pp. 533-536 |
| LA : | Anglais |
| EA : | The multipole mixing ratios for the 198 and 177 keV γ-ray transitions in 169Tm are determined as δ(198) = -6.1-0.6+0.4 and δ(177) = -0.20-0.03+0.04 from new measurements of angular correlation of the 63-198 and 63-177 keV cascades in addition to measurements on the cascades passing through the 118 and 139 keV levels. The present value of δ(198) indicates an almost pure E2 character for the 198 keV γ ray while from earlier measurements an admixture of only 9% E2 was reported for this γ ray. For both the 198 and 177 keV transitions the results do not agree with the conversion electron measurements and indicate that the conversion processes in these transitions are not normal. From time-differential measurement on the 63-198 keV cascade, the relaxation constant λ2 = (0.31*.+.or.-.*0.21)×107 sec-1 is obtained using the source in acetic acid solution. The integral attenuation coefficients for the 316 keV level are found to be G2 = 0.19*.+.or.-.*0.04 in liquid chloride source and G2 = 0.57*.+.or.-.*0.06 in liquid acetate source. |
| CC : | 001B20C20E; 001B20C20G; 001B20C20N; 001B20G70 |
| FD : | Etude expérimentale; 2320E; 2320G; 2320N; 2770; Thulium 169; Transition niveau énergie; Spectre gamma; Rapport mélange; Transition E2; Multipôle |
| ED : | Experimental study; Thulium 169; Energy-level transitions; Gamma spectra; Mixing ratio; E2-transitions; Multipoles |
| LO : | INIST-144C |
| ID : | 94-0252521 |
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Pascal:94-0252521Le document en format XML
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Sinha</name><affiliation><inist:fA14 i1="01"><s1>Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Calcutta-700 064, India</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">94-0252521</idno><date when="1994-01">1994-01</date><idno type="stanalyst">PASCAL 94-0252521 AIP</idno><idno type="RBID">Pascal:94-0252521</idno><idno type="wicri:Area/Pascal/Corpus">001828</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Multipole mixing ratios of the 198 and 177 keV γ-ray transitions in <sup>169</sup>Tm</title><author><name sortKey="Dey, C C" sort="Dey, C C" uniqKey="Dey C" first="C. C." last="Dey">C. C. Dey</name><affiliation><inist:fA14 i1="01"><s1>Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Calcutta-700 064, India</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Sinha, B K" sort="Sinha, B K" uniqKey="Sinha B" first="B. K." last="Sinha">B. K. Sinha</name><affiliation><inist:fA14 i1="01"><s1>Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Calcutta-700 064, India</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14></affiliation></author></analytic><series><title level="j" type="main">Physical Review C (Nuclear Physics)</title><title level="j" type="abbreviated">Phys. Rev. C</title><idno type="ISSN">0556-2813</idno><imprint><date when="1994-01">1994-01</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Physical Review C (Nuclear Physics)</title><title level="j" type="abbreviated">Phys. Rev. C</title><idno type="ISSN">0556-2813</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>E2-transitions</term><term>Energy-level transitions</term><term>Experimental study</term><term>Gamma spectra</term><term>Mixing ratio</term><term>Multipoles</term><term>Thulium 169</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term><term>2320E</term><term>2320G</term><term>2320N</term><term>2770</term><term>Thulium 169</term><term>Transition niveau énergie</term><term>Spectre gamma</term><term>Rapport mélange</term><term>Transition E2</term><term>Multipôle</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The multipole mixing ratios for the 198 and 177 keV γ-ray transitions in <sup>169</sup>Tm are determined as δ(198) = -6.1<sub>-0.6</sub><sup>+0.4</sup> and δ(177) = -0.20<sub>-0.03</sub><sup>+0.04</sup> from new measurements of angular correlation of the 63-198 and 63-177 keV cascades in addition to measurements on the cascades passing through the 118 and 139 keV levels. The present value of δ(198) indicates an almost pure E2 character for the 198 keV γ ray while from earlier measurements an admixture of only 9% E2 was reported for this γ ray. For both the 198 and 177 keV transitions the results do not agree with the conversion electron measurements and indicate that the conversion processes in these transitions are not normal. From time-differential measurement on the 63-198 keV cascade, the relaxation constant λ<sub>2</sub> = (0.31*.+.or.-.*0.21)×10<sup>7</sup> sec<sup>-1</sup> is obtained using the source in acetic acid solution. The integral attenuation coefficients for the 316 keV level are found to be G<sub>2</sub> = 0.19*.+.or.-.*0.04 in liquid chloride source and G<sub>2</sub> = 0.57*.+.or.-.*0.06 in liquid acetate source.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0556-2813</s0></fA01><fA02 i1="01"><s0>PRVCAN</s0></fA02><fA03 i2="1"><s0>Phys. Rev. C</s0></fA03><fA05><s2>49</s2></fA05><fA06><s2>1</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Multipole mixing ratios of the 198 and 177 keV γ-ray transitions in <sup>169</sup>Tm</s1></fA08><fA11 i1="01" i2="1"><s1>DEY (C. C.)</s1></fA11><fA11 i1="02" i2="1"><s1>SINHA (B. K.)</s1></fA11><fA14 i1="01"><s1>Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Calcutta-700 064, India</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA20><s1>533-536</s1></fA20><fA21><s1>1994-01</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>144C</s2></fA43><fA44><s0>8100</s0><s1>© AIP</s1></fA44><fA47 i1="01" i2="1"><s0>94-0252521</s0></fA47><fA60><s1>P</s1><s3>CC</s3></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Physical Review C (Nuclear Physics)</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>The multipole mixing ratios for the 198 and 177 keV γ-ray transitions in <sup>169</sup>Tm are determined as δ(198) = -6.1<sub>-0.6</sub><sup>+0.4</sup> and δ(177) = -0.20<sub>-0.03</sub><sup>+0.04</sup> from new measurements of angular correlation of the 63-198 and 63-177 keV cascades in addition to measurements on the cascades passing through the 118 and 139 keV levels. The present value of δ(198) indicates an almost pure E2 character for the 198 keV γ ray while from earlier measurements an admixture of only 9% E2 was reported for this γ ray. For both the 198 and 177 keV transitions the results do not agree with the conversion electron measurements and indicate that the conversion processes in these transitions are not normal. From time-differential measurement on the 63-198 keV cascade, the relaxation constant λ<sub>2</sub> = (0.31*.+.or.-.*0.21)×10<sup>7</sup> sec<sup>-1</sup> is obtained using the source in acetic acid solution. The integral attenuation coefficients for the 316 keV level are found to be G<sub>2</sub> = 0.19*.+.or.-.*0.04 in liquid chloride source and G<sub>2</sub> = 0.57*.+.or.-.*0.06 in liquid acetate source.</s0></fC01><fC02 i1="01" i2="3"><s0>001B20C20E</s0></fC02><fC02 i1="02" i2="3"><s0>001B20C20G</s0></fC02><fC02 i1="03" i2="3"><s0>001B20C20N</s0></fC02><fC02 i1="04" i2="3"><s0>001B20G70</s0></fC02><fC03 i1="01" i2="3" l="FRE"><s0>Etude expérimentale</s0></fC03><fC03 i1="01" i2="3" l="ENG"><s0>Experimental study</s0></fC03><fC03 i1="02" i2="3" l="FRE"><s0>2320E</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="03" i2="3" l="FRE"><s0>2320G</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="04" i2="3" l="FRE"><s0>2320N</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="05" i2="3" l="FRE"><s0>2770</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="06" i2="3" l="FRE"><s0>Thulium 169</s0><s2>T1</s2></fC03><fC03 i1="06" i2="3" l="ENG"><s0>Thulium 169</s0><s2>T1</s2></fC03><fC03 i1="07" i2="3" l="FRE"><s0>Transition niveau énergie</s0><s2>Q1</s2></fC03><fC03 i1="07" i2="3" l="ENG"><s0>Energy-level transitions</s0><s2>Q1</s2></fC03><fC03 i1="08" i2="3" l="FRE"><s0>Spectre gamma</s0></fC03><fC03 i1="08" i2="3" l="ENG"><s0>Gamma spectra</s0></fC03><fC03 i1="09" i2="3" l="FRE"><s0>Rapport mélange</s0></fC03><fC03 i1="09" i2="3" l="ENG"><s0>Mixing ratio</s0></fC03><fC03 i1="10" i2="3" l="FRE"><s0>Transition E2</s0></fC03><fC03 i1="10" i2="3" l="ENG"><s0>E2-transitions</s0></fC03><fC03 i1="11" i2="3" l="FRE"><s0>Multipôle</s0></fC03><fC03 i1="11" i2="3" l="ENG"><s0>Multipoles</s0></fC03><fN21><s1>117</s1></fN21><fN47 i1="01" i2="1"><s0>9401M1246</s0></fN47></pA></standard><server><NO>PASCAL 94-0252521 AIP</NO><ET>Multipole mixing ratios of the 198 and 177 keV γ-ray transitions in <sup>169</sup>Tm</ET><AU>DEY (C. C.); SINHA (B. K.)</AU><AF>Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Calcutta-700 064, India (1 aut., 2 aut.)</AF><DT>Publication en série; Courte communication, note brève; Niveau analytique</DT><SO>Physical Review C (Nuclear Physics); ISSN 0556-2813; Coden PRVCAN; Etats-Unis; Da. 1994-01; Vol. 49; No. 1; Pp. 533-536</SO><LA>Anglais</LA><EA>The multipole mixing ratios for the 198 and 177 keV γ-ray transitions in <sup>169</sup>Tm are determined as δ(198) = -6.1<sub>-0.6</sub><sup>+0.4</sup> and δ(177) = -0.20<sub>-0.03</sub><sup>+0.04</sup> from new measurements of angular correlation of the 63-198 and 63-177 keV cascades in addition to measurements on the cascades passing through the 118 and 139 keV levels. The present value of δ(198) indicates an almost pure E2 character for the 198 keV γ ray while from earlier measurements an admixture of only 9% E2 was reported for this γ ray. For both the 198 and 177 keV transitions the results do not agree with the conversion electron measurements and indicate that the conversion processes in these transitions are not normal. From time-differential measurement on the 63-198 keV cascade, the relaxation constant λ<sub>2</sub> = (0.31*.+.or.-.*0.21)×10<sup>7</sup> sec<sup>-1</sup> is obtained using the source in acetic acid solution. The integral attenuation coefficients for the 316 keV level are found to be G<sub>2</sub> = 0.19*.+.or.-.*0.04 in liquid chloride source and G<sub>2</sub> = 0.57*.+.or.-.*0.06 in liquid acetate source.</EA><CC>001B20C20E; 001B20C20G; 001B20C20N; 001B20G70</CC><FD>Etude expérimentale; 2320E; 2320G; 2320N; 2770; Thulium 169; Transition niveau énergie; Spectre gamma; Rapport mélange; Transition E2; Multipôle</FD><ED>Experimental study; Thulium 169; Energy-level transitions; Gamma spectra; Mixing ratio; E2-transitions; Multipoles</ED><LO>INIST-144C</LO><ID>94-0252521</ID></server></inist></record>Pour manipuler ce document sous Unix (Dilib)
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