New, heavy transuranium isotopes

Conference · Mon Oct 22 00:00:00 EDT 1990

OSTI ID:6028419

Hulet, E K

In this report, we offer our most recent results concerning the decay properties for five new isotopes of Md, No, Lr, and for {sup 258m}Md. In additions to these successful experiments, we have also conducted searches for {sup 263}(105), {sup 264}(105), {sup 272}(109), and superheavy elements from bombardments of {sup 254}Es with heavy ions. {sup 2} An exciting finding in the course of this work is a new fission phenomenon, which we have termed bidmodal fission''. This is described in a subsequent section. The final part summarizes our conclusions based on the unexpectedly long half-lives and surprising fission properties of the heaviest nuclei. 27 refs., 19 figs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6028419
• Report Number(s): UCRL-JC-105174; CONF-9010297-2; ON: DE91007255; TRN: 91-004566
• Resource Relation: Conference: 34. Robert A. Welch Foundation conference on chemical research: fifty years with transuranium elements, Houston, TX (USA), 22-23 Oct 1990
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
LAWRENCIUM 261
SPONTANEOUS FISSION
LAWRENCIUM 262
MENDELEVIUM 258
MENDELEVIUM 260
NOBELIUM 260
NOBELIUM 262
DECAY
POTENTIAL ENERGY
SYNTHESIS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
ENERGY
EVEN-EVEN NUCLEI
FISSION
HEAVY NUCLEI
ISOTOPES
LAWRENCIUM ISOTOPES
MENDELEVIUM ISOTOPES
MINUTES LIVING RADIOISOTOPES
NOBELIUM ISOTOPES
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
652020* - Nuclear Properties & Reactions
A=220 & above
Experimental
653006 - Nuclear Theory- Spontaneous & Induced Fission