Access the full text.
Sign up today, get DeepDyve free for 14 days.
References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.
A survey of the radiations of Ta 182 , Re 1 8 6 , 1 8 8 and Au 199 has been made down to energies of the order of 5 kev with a small 180 degree spectrometer. The disintegration scheme of Ta 182 is complex. The twenty or more conversion lines found superimposed on the beta-ray spectrum and the numerous peaks found in the photoelectron spectrum are analysed into seventeen gammas in the energy region 80 to 330 kev. In addition, three gamma-rays of energies 1.13, 1.22, and 1.24 Mev are found. The continuous spectrum has an end point at 0.53 Mev. The radiations of Re 186 consist of a single beta-ray group of maximum energy 1.07 Mev and two gamma-rays of energies 0.138 and 0.212 Mev. The 0.138 Mev gamma-ray is converted. Coincidence experiments strongly suggest that the mode of decay is one involving the emission of a single beta-ray group, followed by the cascade emission of the two gamma-rays. The disintegration of Re 188 is more complicated. A single group of beta-rays is found with the end point at 2.10 Mev. Five gamma-rays with energies essentially the same as those reported by Miller and Curtiss are present. All the radiations of Au 199 lie below 0.32 Mev. Superimposed on the beta-ray spectrum are eight conversion lines that may be attributed to 4 gamma-rays having energies of 0.024, 0.051, 0.156 and 0.207 Mev. The beta-rays have a maximum energy of 0.32 Mev. A possible decay scheme is suggested.
Physical Review – American Physical Society (APS)
Published: Dec 1, 1949
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.