Decay ofTe112,113,114and

Discovery of palladium, antimony, tellurium, iodine, and xenon isotopes

“…The half-life of the palladium mother ( 99 Pd if the mass of the 4.5 hours rhodium is correct) was found to be 24 minutes, with an error which may be between 5 and 10 minutes." The 17 min and 24 min half-lives for 98 Pd and 99 Pd agree with the accepted half-lives of 17.7(3) min and 21.4(2) min, respectively. Earlier, Aten Jr and De Vries-Hamerling had measured a 15(3) min half-life but could only assign it to either 96 Pd or 98 Pd [23].…”

“…The 17 min and 24 min half-lives for 98 Pd and 99 Pd agree with the accepted half-lives of 17.7(3) min and 21.4(2) min, respectively. Earlier, Aten Jr and De Vries-Hamerling had measured a 15(3) min half-life but could only assign it to either 96 Pd or 98 Pd [23]. 100,101 Pd Lindner and Perlman discovered 100 Pd and 101 Pd in 1948 in "Neutron deficient isotopes of tellurium and antimony" [24].…”

“…This half-life agrees with the accepted value of 3.1(9) min. 98, 99 Pd "Formation and properties of neutron-deficient isotopes of rhodium and palladium" by Aten Jr and De Vries-Hamerling describes the identification of 98 Pd and 99 Pd in 1955 [22]. Ruthenium targets were bombarded with 24 and 52 MeV α particles from the Amsterdam cyclotron.…”

“…"We have since found by means of milking experiments that the palladium-mother of the 9-minutes rhodium can also be obtained from ruthenium irradiated with 24 MeV helium ions, which rules out the mass number 96, as the latter can only be formed by an (α,4n) process. Therefore it seems likely that the 9-minutes period is due to 98 Rh and its 17-minutes mother to 98 Pd... A number of experiments have been carried out in which the 4.5 hours rhodium, supposed to be 99 Rh, is milked from the palladium fraction, obtained by irradiating ruthenium with 52 MeV helium ions... The half-life of the palladium mother ( 99 Pd if the mass of the 4.5 hours rhodium is correct) was found to be 24 minutes, with an error which may be between 5 and 10 minutes."…”

Identification of low-spin states inSb111: Test of spin-orbit coupling in light nuclei

“…We start by noting that these levels are not populated in heavy-ion-induced reactions; hence, their spins and parities are likely to be less than 7/2 + , i.e., 1/2 + , 3/2 + , or 5/2 + . For the lowest excited level at 487 keV, we note that the lowest excited state in the adjacent 113 Sb nuclide at 645 keV is assigned as 1/2 + on the basis of an = 0 angular distribution in the ( 3 He, d ) reaction [13], and is also populated indirectly in the decay of 5/2 + 113 Te [14]. About half of the observed intensity of the 487-keV line can be accounted for by the feeding of the 1392-keV γ ray.…”