Spontaneous fission properties of sub 103 sup 259 Lr
We have measured the mass and kinetic-energy distributions of fragments from the spontaneous fission of {sup 259}Lr. The {sup 259}Lr was produced via the {sup 248}Cm ({sup 15}N,4{ital n}) reaction with a production cross section of 100 nb using 81-MeV projectiles. The kinetic energies and times of t...
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| Veröffentlicht in: | Physical review. C, Nuclear physics Nuclear physics, 1992-11, Vol.46:5 |
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| creator | Hamilton, T.M. Gregorich, K.E. Lee, D.M. Czerwinski, K.R. Hannink, N.J. Kacher, C.D. Kadkhodayan, B. Kreek, S.A. Nurmia, M.J. Lane, M.R. Neu, M.P. Tuerler, A. Hoffman, D.C. |
| description | We have measured the mass and kinetic-energy distributions of fragments from the spontaneous fission of {sup 259}Lr. The {sup 259}Lr was produced via the {sup 248}Cm ({sup 15}N,4{ital n}) reaction with a production cross section of 100 nb using 81-MeV projectiles. The kinetic energies and times of the alpha particles and coincident fission fragments were measured using our rotating wheel system. From these data the half-life, mass, and kinetic-energy distributions were derived. The total kinetic-energy (TKE) distribution appears to consist of a single component with a most probable pre-neutron-emission TKE of 215{plus minus}3 MeV. The mass distribution is predominantly symmetric with a full width at half maximum of about 20 mass numbers. These results are consistent with trends observed for other trans-berkelium spontaneously fissioning isotopes. We determined the half-life to be 6.14{plus minus}0.36 s by measuring its alpha decay and the observed spontaneous fission half-life was consistent with that value. An energy of 8.439{plus minus}0.010 MeV was measured for the main alpha transition of {sup 259}Lr. We measured a spontaneous fission to alpha-decay ratio of 0.25{plus minus}0.03 which results in a partial half-life for spontaneous fission of 31{plus minus}4 s, if there are no other appreciable modes of decay. |
| doi_str_mv | 10.1103/PhysRevC.46.1873 |
| format | Article |
| fullrecord | <record><control><sourceid>osti</sourceid><recordid>TN_cdi_osti_scitechconnect_7156731</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>7156731</sourcerecordid><originalsourceid>FETCH-osti_scitechconnect_71567313</originalsourceid><addsrcrecordid>eNqNjb0KwjAYAIMoWH92x-Demq9p0nYuioODqINbqSGlEUlCv1Tw7e3gA3jLLQdHyAZYAsD47tx98KLfVZLJBIqcT0gErCjjrGT3KYmYEDJOC-BzskB8shHOZUSyq3c2NFa7AWlrEI2z1PfO6z4YjdS1FIcHHQ-jPU1FSU_9isza5oV6_fOSbA_7W3WMHQZTozJBq045a7UKdQ5C5hz4X9EXTh07Ag</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Spontaneous fission properties of sub 103 sup 259 Lr</title><source>American Physical Society Journals</source><creator>Hamilton, T.M. ; Gregorich, K.E. ; Lee, D.M. ; Czerwinski, K.R. ; Hannink, N.J. ; Kacher, C.D. ; Kadkhodayan, B. ; Kreek, S.A. ; Nurmia, M.J. ; Lane, M.R. ; Neu, M.P. ; Tuerler, A. ; Hoffman, D.C.</creator><creatorcontrib>Hamilton, T.M. ; Gregorich, K.E. ; Lee, D.M. ; Czerwinski, K.R. ; Hannink, N.J. ; Kacher, C.D. ; Kadkhodayan, B. ; Kreek, S.A. ; Nurmia, M.J. ; Lane, M.R. ; Neu, M.P. ; Tuerler, A. ; Hoffman, D.C.</creatorcontrib><description>We have measured the mass and kinetic-energy distributions of fragments from the spontaneous fission of {sup 259}Lr. The {sup 259}Lr was produced via the {sup 248}Cm ({sup 15}N,4{ital n}) reaction with a production cross section of 100 nb using 81-MeV projectiles. The kinetic energies and times of the alpha particles and coincident fission fragments were measured using our rotating wheel system. From these data the half-life, mass, and kinetic-energy distributions were derived. The total kinetic-energy (TKE) distribution appears to consist of a single component with a most probable pre-neutron-emission TKE of 215{plus minus}3 MeV. The mass distribution is predominantly symmetric with a full width at half maximum of about 20 mass numbers. These results are consistent with trends observed for other trans-berkelium spontaneously fissioning isotopes. We determined the half-life to be 6.14{plus minus}0.36 s by measuring its alpha decay and the observed spontaneous fission half-life was consistent with that value. An energy of 8.439{plus minus}0.010 MeV was measured for the main alpha transition of {sup 259}Lr. We measured a spontaneous fission to alpha-decay ratio of 0.25{plus minus}0.03 which results in a partial half-life for spontaneous fission of 31{plus minus}4 s, if there are no other appreciable modes of decay.</description><identifier>ISSN: 0556-2813</identifier><identifier>EISSN: 1089-490X</identifier><identifier>DOI: 10.1103/PhysRevC.46.1873</identifier><language>eng</language><publisher>United States</publisher><subject>663590 -- Nuclear Mass Ranges-- A=220 & Above-- (1992-) ; ACTINIDE ISOTOPES ; ACTINIDE NUCLEI ; ALPHA DECAY RADIOISOTOPES ; BARYONS ; CHARGED-PARTICLE REACTIONS ; CROSS SECTIONS ; CURIUM 248 TARGET ; DATA ; DAYS LIVING RADIOISOTOPES ; ELEMENTARY PARTICLES ; ENERGY RANGE ; EXPERIMENTAL DATA ; FERMIONS ; FISSION ; FISSION FRAGMENTS ; HADRONS ; HALF-LIFE ; HEAVY ION FUSION REACTIONS ; HEAVY ION REACTIONS ; HEAVY NUCLEI ; INFORMATION ; ISOTOPES ; LAWRENCIUM 259 ; LAWRENCIUM ISOTOPES ; MEV RANGE ; MEV RANGE 10-100 ; NEUTRONS ; NITROGEN 15 REACTIONS ; NUCLEAR FRAGMENTS ; NUCLEAR PHYSICS AND RADIATION PHYSICS ; NUCLEAR REACTIONS ; NUCLEI ; NUCLEONS ; NUMERICAL DATA ; ODD-EVEN NUCLEI ; RADIOISOTOPES ; SECONDS LIVING RADIOISOTOPES ; TARGETS ; YEARS LIVING RADIOISOTOPES 663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)</subject><ispartof>Physical review. C, Nuclear physics, 1992-11, Vol.46:5</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/7156731$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Hamilton, T.M.</creatorcontrib><creatorcontrib>Gregorich, K.E.</creatorcontrib><creatorcontrib>Lee, D.M.</creatorcontrib><creatorcontrib>Czerwinski, K.R.</creatorcontrib><creatorcontrib>Hannink, N.J.</creatorcontrib><creatorcontrib>Kacher, C.D.</creatorcontrib><creatorcontrib>Kadkhodayan, B.</creatorcontrib><creatorcontrib>Kreek, S.A.</creatorcontrib><creatorcontrib>Nurmia, M.J.</creatorcontrib><creatorcontrib>Lane, M.R.</creatorcontrib><creatorcontrib>Neu, M.P.</creatorcontrib><creatorcontrib>Tuerler, A.</creatorcontrib><creatorcontrib>Hoffman, D.C.</creatorcontrib><title>Spontaneous fission properties of sub 103 sup 259 Lr</title><title>Physical review. C, Nuclear physics</title><description>We have measured the mass and kinetic-energy distributions of fragments from the spontaneous fission of {sup 259}Lr. The {sup 259}Lr was produced via the {sup 248}Cm ({sup 15}N,4{ital n}) reaction with a production cross section of 100 nb using 81-MeV projectiles. The kinetic energies and times of the alpha particles and coincident fission fragments were measured using our rotating wheel system. From these data the half-life, mass, and kinetic-energy distributions were derived. The total kinetic-energy (TKE) distribution appears to consist of a single component with a most probable pre-neutron-emission TKE of 215{plus minus}3 MeV. The mass distribution is predominantly symmetric with a full width at half maximum of about 20 mass numbers. These results are consistent with trends observed for other trans-berkelium spontaneously fissioning isotopes. We determined the half-life to be 6.14{plus minus}0.36 s by measuring its alpha decay and the observed spontaneous fission half-life was consistent with that value. An energy of 8.439{plus minus}0.010 MeV was measured for the main alpha transition of {sup 259}Lr. We measured a spontaneous fission to alpha-decay ratio of 0.25{plus minus}0.03 which results in a partial half-life for spontaneous fission of 31{plus minus}4 s, if there are no other appreciable modes of decay.</description><subject>663590 -- Nuclear Mass Ranges-- A=220 & Above-- (1992-)</subject><subject>ACTINIDE ISOTOPES</subject><subject>ACTINIDE NUCLEI</subject><subject>ALPHA DECAY RADIOISOTOPES</subject><subject>BARYONS</subject><subject>CHARGED-PARTICLE REACTIONS</subject><subject>CROSS SECTIONS</subject><subject>CURIUM 248 TARGET</subject><subject>DATA</subject><subject>DAYS LIVING RADIOISOTOPES</subject><subject>ELEMENTARY PARTICLES</subject><subject>ENERGY RANGE</subject><subject>EXPERIMENTAL DATA</subject><subject>FERMIONS</subject><subject>FISSION</subject><subject>FISSION FRAGMENTS</subject><subject>HADRONS</subject><subject>HALF-LIFE</subject><subject>HEAVY ION FUSION REACTIONS</subject><subject>HEAVY ION REACTIONS</subject><subject>HEAVY NUCLEI</subject><subject>INFORMATION</subject><subject>ISOTOPES</subject><subject>LAWRENCIUM 259</subject><subject>LAWRENCIUM ISOTOPES</subject><subject>MEV RANGE</subject><subject>MEV RANGE 10-100</subject><subject>NEUTRONS</subject><subject>NITROGEN 15 REACTIONS</subject><subject>NUCLEAR FRAGMENTS</subject><subject>NUCLEAR PHYSICS AND RADIATION PHYSICS</subject><subject>NUCLEAR REACTIONS</subject><subject>NUCLEI</subject><subject>NUCLEONS</subject><subject>NUMERICAL DATA</subject><subject>ODD-EVEN NUCLEI</subject><subject>RADIOISOTOPES</subject><subject>SECONDS LIVING RADIOISOTOPES</subject><subject>TARGETS</subject><subject>YEARS LIVING RADIOISOTOPES 663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)</subject><issn>0556-2813</issn><issn>1089-490X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><recordid>eNqNjb0KwjAYAIMoWH92x-Demq9p0nYuioODqINbqSGlEUlCv1Tw7e3gA3jLLQdHyAZYAsD47tx98KLfVZLJBIqcT0gErCjjrGT3KYmYEDJOC-BzskB8shHOZUSyq3c2NFa7AWlrEI2z1PfO6z4YjdS1FIcHHQ-jPU1FSU_9isza5oV6_fOSbA_7W3WMHQZTozJBq045a7UKdQ5C5hz4X9EXTh07Ag</recordid><startdate>19921101</startdate><enddate>19921101</enddate><creator>Hamilton, T.M.</creator><creator>Gregorich, K.E.</creator><creator>Lee, D.M.</creator><creator>Czerwinski, K.R.</creator><creator>Hannink, N.J.</creator><creator>Kacher, C.D.</creator><creator>Kadkhodayan, B.</creator><creator>Kreek, S.A.</creator><creator>Nurmia, M.J.</creator><creator>Lane, M.R.</creator><creator>Neu, M.P.</creator><creator>Tuerler, A.</creator><creator>Hoffman, D.C.</creator><scope>OTOTI</scope></search><sort><creationdate>19921101</creationdate><title>Spontaneous fission properties of sub 103 sup 259 Lr</title><author>Hamilton, T.M. ; Gregorich, K.E. ; Lee, D.M. ; Czerwinski, K.R. ; Hannink, N.J. ; Kacher, C.D. ; Kadkhodayan, B. ; Kreek, S.A. ; Nurmia, M.J. ; Lane, M.R. ; Neu, M.P. ; Tuerler, A. ; Hoffman, D.C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-osti_scitechconnect_71567313</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1992</creationdate><topic>663590 -- Nuclear Mass Ranges-- A=220 & Above-- (1992-)</topic><topic>ACTINIDE ISOTOPES</topic><topic>ACTINIDE NUCLEI</topic><topic>ALPHA DECAY RADIOISOTOPES</topic><topic>BARYONS</topic><topic>CHARGED-PARTICLE REACTIONS</topic><topic>CROSS SECTIONS</topic><topic>CURIUM 248 TARGET</topic><topic>DATA</topic><topic>DAYS LIVING RADIOISOTOPES</topic><topic>ELEMENTARY PARTICLES</topic><topic>ENERGY RANGE</topic><topic>EXPERIMENTAL DATA</topic><topic>FERMIONS</topic><topic>FISSION</topic><topic>FISSION FRAGMENTS</topic><topic>HADRONS</topic><topic>HALF-LIFE</topic><topic>HEAVY ION FUSION REACTIONS</topic><topic>HEAVY ION REACTIONS</topic><topic>HEAVY NUCLEI</topic><topic>INFORMATION</topic><topic>ISOTOPES</topic><topic>LAWRENCIUM 259</topic><topic>LAWRENCIUM ISOTOPES</topic><topic>MEV RANGE</topic><topic>MEV RANGE 10-100</topic><topic>NEUTRONS</topic><topic>NITROGEN 15 REACTIONS</topic><topic>NUCLEAR FRAGMENTS</topic><topic>NUCLEAR PHYSICS AND RADIATION PHYSICS</topic><topic>NUCLEAR REACTIONS</topic><topic>NUCLEI</topic><topic>NUCLEONS</topic><topic>NUMERICAL DATA</topic><topic>ODD-EVEN NUCLEI</topic><topic>RADIOISOTOPES</topic><topic>SECONDS LIVING RADIOISOTOPES</topic><topic>TARGETS</topic><topic>YEARS LIVING RADIOISOTOPES 663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)</topic><toplevel>online_resources</toplevel><creatorcontrib>Hamilton, T.M.</creatorcontrib><creatorcontrib>Gregorich, K.E.</creatorcontrib><creatorcontrib>Lee, D.M.</creatorcontrib><creatorcontrib>Czerwinski, K.R.</creatorcontrib><creatorcontrib>Hannink, N.J.</creatorcontrib><creatorcontrib>Kacher, C.D.</creatorcontrib><creatorcontrib>Kadkhodayan, B.</creatorcontrib><creatorcontrib>Kreek, S.A.</creatorcontrib><creatorcontrib>Nurmia, M.J.</creatorcontrib><creatorcontrib>Lane, M.R.</creatorcontrib><creatorcontrib>Neu, M.P.</creatorcontrib><creatorcontrib>Tuerler, A.</creatorcontrib><creatorcontrib>Hoffman, D.C.</creatorcontrib><collection>OSTI.GOV</collection><jtitle>Physical review. C, Nuclear physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hamilton, T.M.</au><au>Gregorich, K.E.</au><au>Lee, D.M.</au><au>Czerwinski, K.R.</au><au>Hannink, N.J.</au><au>Kacher, C.D.</au><au>Kadkhodayan, B.</au><au>Kreek, S.A.</au><au>Nurmia, M.J.</au><au>Lane, M.R.</au><au>Neu, M.P.</au><au>Tuerler, A.</au><au>Hoffman, D.C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spontaneous fission properties of sub 103 sup 259 Lr</atitle><jtitle>Physical review. C, Nuclear physics</jtitle><date>1992-11-01</date><risdate>1992</risdate><volume>46:5</volume><issn>0556-2813</issn><eissn>1089-490X</eissn><abstract>We have measured the mass and kinetic-energy distributions of fragments from the spontaneous fission of {sup 259}Lr. The {sup 259}Lr was produced via the {sup 248}Cm ({sup 15}N,4{ital n}) reaction with a production cross section of 100 nb using 81-MeV projectiles. The kinetic energies and times of the alpha particles and coincident fission fragments were measured using our rotating wheel system. From these data the half-life, mass, and kinetic-energy distributions were derived. The total kinetic-energy (TKE) distribution appears to consist of a single component with a most probable pre-neutron-emission TKE of 215{plus minus}3 MeV. The mass distribution is predominantly symmetric with a full width at half maximum of about 20 mass numbers. These results are consistent with trends observed for other trans-berkelium spontaneously fissioning isotopes. We determined the half-life to be 6.14{plus minus}0.36 s by measuring its alpha decay and the observed spontaneous fission half-life was consistent with that value. An energy of 8.439{plus minus}0.010 MeV was measured for the main alpha transition of {sup 259}Lr. We measured a spontaneous fission to alpha-decay ratio of 0.25{plus minus}0.03 which results in a partial half-life for spontaneous fission of 31{plus minus}4 s, if there are no other appreciable modes of decay.</abstract><cop>United States</cop><doi>10.1103/PhysRevC.46.1873</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0556-2813 |
| ispartof | Physical review. C, Nuclear physics, 1992-11, Vol.46:5 |
| issn | 0556-2813 1089-490X |
| language | eng |
| recordid | cdi_osti_scitechconnect_7156731 |
| source | American Physical Society Journals |
| subjects | 663590 -- Nuclear Mass Ranges-- A=220 & Above-- (1992-) ACTINIDE ISOTOPES ACTINIDE NUCLEI ALPHA DECAY RADIOISOTOPES BARYONS CHARGED-PARTICLE REACTIONS CROSS SECTIONS CURIUM 248 TARGET DATA DAYS LIVING RADIOISOTOPES ELEMENTARY PARTICLES ENERGY RANGE EXPERIMENTAL DATA FERMIONS FISSION FISSION FRAGMENTS HADRONS HALF-LIFE HEAVY ION FUSION REACTIONS HEAVY ION REACTIONS HEAVY NUCLEI INFORMATION ISOTOPES LAWRENCIUM 259 LAWRENCIUM ISOTOPES MEV RANGE MEV RANGE 10-100 NEUTRONS NITROGEN 15 REACTIONS NUCLEAR FRAGMENTS NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEAR REACTIONS NUCLEI NUCLEONS NUMERICAL DATA ODD-EVEN NUCLEI RADIOISOTOPES SECONDS LIVING RADIOISOTOPES TARGETS YEARS LIVING RADIOISOTOPES 663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-) |
| title | Spontaneous fission properties of sub 103 sup 259 Lr |
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