Atomic Physics at Accelerators: Mass Spectrometry: Proceedings of the Apac 2000, Held in Cargfse, France, 19û23 September 2000

Lunney, David (Editor)/ Audi, Georges (Editor)/ Kluge, Heinz-Jürgen (Editor)

ISBN 10: 9048158257 / ISBN 13: 9789048158256

Published by Springer, 2011

About this Item

reprint edition. 556 pages. 9.06x5.98x1.26 inches. In Stock.

Seller Inventory # zk9048158257

Bibliographic Details

• Title: Atomic Physics at Accelerators: Mass Spectrometry: Proceedings of the Apac 2000, Held in Cargfse, France, 19û23 September 2000
• Publisher: Springer
• Publication Date: 2011
• Language: English
• ISBN 10: 9048158257
• ISBN 13: 9789048158256
• Binding: Paperback
• Condition: Brand New
• Weight: 0.78 kilograms

About this title

Synopsis

The search for examples of proton radioactivity has resulted in the discovery of a large number of proton emitters in the region 50 < Z < 84 [1]. Many of these proton emitters and their daughters are also a-emitters, and in some cases the a-decay chain from the daughter terminates on a nuclide closer to stability whose mass excess is known. This opens up the possibility of using a-and proton-decay Q-values to determine the mass excesses of a large group of nuclei connected by particle decay. The Q-values are derived from the measured kinetic energies of the emitted protons or a-particles. Where the decay chains are not connected to nuclei with known mass excesses, proton separation energies can be measured in some cases and derived in others. For the a-decay ofthe parent nucleus (Z, A) to the daughter (Z - 2, A - 4), the energy and momentum relations used to convert between Q-value, mass (M) and mass excess (ME) are: M(4He)E", (1) M(Z - 2, A - 4)Erecoil, (2) Q", E", + Erecoi\, ME(Z, A) Q", + ME(Z - 2, A - 4) + ME(4He). (3) In practice, one uses M(4He) ~ 4 and M(Z - 2, A - 4) (A - 4), so that Equation (3) becomes ME(Z, A) = E", (_A_) + ME(Z - 2, A - 4) + ME(4He). (4) A -4 Similarly, for protons, we have ME(Z, A) = Ep(_A_) +ME(Z - 1, A-I) +ME(lH).