✦ LIBER ✦

Radiations from platinum (197)

✍ Scribed by V.R. Potnis; C.E. Mandeville; John S. Burlew

Publisher: Elsevier Science
Year: 1955
Tongue: English
Weight: 71 KB
Volume: 259
Category: Article
ISSN: 0016-0032
DOI: 10.1016/0016-0032(55)90109-5

No coin nor oath required. For personal study only.

✦ Synopsis

The radiations of Ptlg7 have been examined with coincident spectrometers of NaI-TI and anthracene.

Gamma rays have been detected at 77, 191, and 279 Kev, the unconverted quantum radiations having relative intensities of 30, 3.9, and 1.0. Coincidence measurements revealed the presence of three beta spectra of maximum energies 670, 479, and 468 Kev, terminating at levels in AtrIg at 77, 268, and 279 Kev which are also excited (1,~) in the decay of Hg'97 and by coulomb excitation (3).

These beta spectra have intensities in order of decreasing end-point energy of 90.6, 8.4, and 1.0 per cent. These estimates are based upon the observed gamma-ray intensities and upon previously determined conversion coefficients, experimental (1 ,z) and theoretical (4). In the same order, values of log ft are 6.4, 6.88, and 7.8.

📜 SIMILAR VOLUMES

Radiations from Au195

✍ V.R. Potnis 📂 Article 📅 1956 🏛 Elsevier Science 🌐 English ⚖ 51 KB

Radiations from 142Lanthanum

✍ A. Vanden Bosch 📂 Article 📅 1953 🏛 Elsevier Science ⚖ 52 KB

Radiations from arsenic 70

✍ B. Verkerk; A.H.W. Aten Jr. 📂 Article 📅 1952 🏛 Elsevier Science ⚖ 71 KB

Protection from ionizing radiations volu

Protection from ionizing radiations volume II. Protection from radiations of nuclear engineering installations

✍ S. G. Tsypin 📂 Article 📅 1974 🏛 Springer US 🌐 English ⚖ 92 KB

Radiations from radioactive rhodium (105

Radiations from radioactive rhodium (105)

✍ C.E. Mandeville; E. Shapiro 📂 Article 📅 1952 🏛 Elsevier Science 🌐 English ⚖ 293 KB

The characteristic radiations of the 36-hr. rhodium (105) have been investigated with the use of conventional absorption and coincidence methods. The beta rays were found to have a maximum energy of 0.55 Mev., and the gamma rays a quantum energy of ~-~0.3 Mev. The beta-gamma coincidence rate of Rh 1

Radiations from Zr97 and Nb97

✍ C.E. Mandeville; E. Shapiro; R.I. Mendenhall; E.R. Zucker; G.L. Conklin 📂 Article 📅 1952 🏛 Elsevier Science 🌐 English ⚖ 322 KB

Zr9602 (isotopic concentration 90 per cent) was irradiated by slow neutrons in the Oak Ridge pile. The half-period of the niobium daughter element, chemically separated from zirconium, was found to be 72.1 ~ 0.7 rain. and that of Zr 97 to be 17.0 + 0.2 hr. By aluminum absorption and Feather analysis