A nuclear emulsion study of the radioactive decay of actinium X( 223Ra)

B. F. Bayman, M. A.S. Ross

Research output: Contribution to journalArticle

Abstract

A nuclear emulsion method has been used to obtain the absolute intensity of the conversion electron spectrum following the radioactive decay of AcX. The results have been used in conjunction with the other available knowledge about the decay to show that in the level scheme of An there are three strong transitions having energies of 144, 154 and 268 keV and probably a fourth of 122 keV, all of which are either pure M1 or M1 with only a small admixture of E2. All four of these transitions probably go directly to the ground state of An. Estimates of the absolute intensities of these transitions and of several other less strong transitions have been made, and it is shown that the absolute intensity of K x-ray fluorescence is at least 0.3 and probably 0.5 quanta per disintegration.

Original languageEnglish (US)
Article number308
Pages (from-to)110-120
Number of pages11
JournalProceedings of the Physical Society. Section A
Volume68
Issue number2
DOIs
StatePublished - Dec 1 1955

Fingerprint

actinium
radioactive decay
nuclear emulsions
Emulsion
Decay
x ray fluorescence
disintegration
admixtures
Fluorescence
Ground State
Electron
ground state
decay
estimates
Energy
Estimate
electrons

Cite this

A nuclear emulsion study of the radioactive decay of actinium X( 223Ra). / Bayman, B. F.; Ross, M. A.S.

In: Proceedings of the Physical Society. Section A, Vol. 68, No. 2, 308, 01.12.1955, p. 110-120.

Research output: Contribution to journalArticle

@article{7f93eecafd274cc38b5b5f414d66a20f,
title = "A nuclear emulsion study of the radioactive decay of actinium X( 223Ra)",
abstract = "A nuclear emulsion method has been used to obtain the absolute intensity of the conversion electron spectrum following the radioactive decay of AcX. The results have been used in conjunction with the other available knowledge about the decay to show that in the level scheme of An there are three strong transitions having energies of 144, 154 and 268 keV and probably a fourth of 122 keV, all of which are either pure M1 or M1 with only a small admixture of E2. All four of these transitions probably go directly to the ground state of An. Estimates of the absolute intensities of these transitions and of several other less strong transitions have been made, and it is shown that the absolute intensity of K x-ray fluorescence is at least 0.3 and probably 0.5 quanta per disintegration.",
author = "Bayman, {B. F.} and Ross, {M. A.S.}",
year = "1955",
month = "12",
day = "1",
doi = "10.1088/0370-1298/68/2/308",
language = "English (US)",
volume = "68",
pages = "110--120",
journal = "Proceedings of the Physical Society. Section A",
issn = "0370-1298",
number = "2",

}

TY - JOUR

T1 - A nuclear emulsion study of the radioactive decay of actinium X( 223Ra)

AU - Bayman, B. F.

AU - Ross, M. A.S.

PY - 1955/12/1

Y1 - 1955/12/1

N2 - A nuclear emulsion method has been used to obtain the absolute intensity of the conversion electron spectrum following the radioactive decay of AcX. The results have been used in conjunction with the other available knowledge about the decay to show that in the level scheme of An there are three strong transitions having energies of 144, 154 and 268 keV and probably a fourth of 122 keV, all of which are either pure M1 or M1 with only a small admixture of E2. All four of these transitions probably go directly to the ground state of An. Estimates of the absolute intensities of these transitions and of several other less strong transitions have been made, and it is shown that the absolute intensity of K x-ray fluorescence is at least 0.3 and probably 0.5 quanta per disintegration.

AB - A nuclear emulsion method has been used to obtain the absolute intensity of the conversion electron spectrum following the radioactive decay of AcX. The results have been used in conjunction with the other available knowledge about the decay to show that in the level scheme of An there are three strong transitions having energies of 144, 154 and 268 keV and probably a fourth of 122 keV, all of which are either pure M1 or M1 with only a small admixture of E2. All four of these transitions probably go directly to the ground state of An. Estimates of the absolute intensities of these transitions and of several other less strong transitions have been made, and it is shown that the absolute intensity of K x-ray fluorescence is at least 0.3 and probably 0.5 quanta per disintegration.

UR - http://www.scopus.com/inward/record.url?scp=36149059324&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36149059324&partnerID=8YFLogxK

U2 - 10.1088/0370-1298/68/2/308

DO - 10.1088/0370-1298/68/2/308

M3 - Article

AN - SCOPUS:36149059324

VL - 68

SP - 110

EP - 120

JO - Proceedings of the Physical Society. Section A

JF - Proceedings of the Physical Society. Section A

SN - 0370-1298

IS - 2

M1 - 308

ER -