Basic Modes of Radioactive Decay

Band structure in81Y and its radioactive decay

Journal of Physics G Nuclear Physics ◽

10.1088/0305-4616/11/8/013 ◽

1985 ◽

Vol 11 (8) ◽

pp. 969-979 ◽

Cited By ~ 26

Author(s):

C J Lister ◽

R Moscrop ◽

B J Varley ◽

H G Price ◽

E K Warburton ◽

...

Keyword(s):

Band Structure ◽

Radioactive Decay

Download Full-text

Self-glowing crystals–radioactive decay energy converters into optical emission

Materials Research Bulletin ◽

10.1016/j.materresbull.2021.111431 ◽

2021 ◽

Vol 142 ◽

pp. 111431

Author(s):

M.V. Zamoryanskaya ◽

E.V. Dementeva ◽

K.N. Orekhova ◽

V.A. Kravets ◽

A.N. Trofimov ◽

...

Keyword(s):

Radioactive Decay ◽

Optical Emission ◽

Decay Energy ◽

Energy Converters

Download Full-text

Krypton 85 myocardial blood flow: precordial scintillation versus coronary sinus sampling

American Journal of Physiology-Legacy Content ◽

10.1152/ajplegacy.1965.209.4.705 ◽

1965 ◽

Vol 209 (4) ◽

pp. 705-710 ◽

Cited By ~ 34

Author(s):

Michael D. Klein ◽

Lawrence S. Cohen ◽

Richard Gorlin

Keyword(s):

Blood Flow ◽

Myocardial Blood Flow ◽

Coronary Sinus ◽

Human Subjects ◽

Radioactive Decay ◽

Empirical Correction ◽

Wide Range ◽

Actual Flow ◽

Flow Through ◽

High Degree

Myocardial blood flow in human subjects was assessed by comparative simultaneous measurement of krypton 85 radioactive decay from coronary sinus and precordial scintillation. Empirical correction of postclearance background from precordial curves yielded a high degree of correlation between flows derived from the two sampling sites (r = .889, P < .001). Comparison of left and right coronary flows in nine subjects revealed similarity in flow through the two vessels over a wide range of actual flow values (r = .945, P < .001).

Download Full-text

Nuclide++: A C++ module to include DDEP recommended radioactive decay Data in Geant4

Applied Radiation and Isotopes ◽

10.1016/j.apradiso.2019.108964 ◽

2020 ◽

Vol 156 ◽

pp. 108964

Author(s):

C. Thiam ◽

C. Dulieu ◽

X. Mougeot ◽

A. Nair ◽

C. Bobin ◽

...

Keyword(s):

Radioactive Decay ◽

Decay Data

Download Full-text

Fundamental Studies of Plutonium Aging

MRS Bulletin ◽

10.1557/mrs2001.177 ◽

2001 ◽

Vol 26 (9) ◽

pp. 679-683 ◽

Cited By ~ 37

Author(s):

Brian D. Wirth ◽

Adam J. Schwartz ◽

Michael J. Fluss ◽

Maria J. Caturla ◽

Mark A. Wall ◽

...

Keyword(s):

Electronic Structure ◽

Conduction Band ◽

Ambient Pressure ◽

Radioactive Decay ◽

Bound State ◽

Environmental Safety ◽

Structure Theory ◽

Cubic Phase ◽

High Symmetry ◽

Safety And Health

Plutonium metallurgy lies at the heart of science-based stockpile stewardship. One aspect is concerned with developing predictive capabilities to describe the properties of stockpile materials, including an assessment of microstructural changes with age. Yet, the complex behavior of plutonium, which results from the competition of its 5f electrons between a localized (atomic-like or bound) state and an itinerant (delocalized bonding) state, has been challenging materials scientists and physicists for the better part of five decades. Although far from quantitatively absolute, electronic-structure theory provides a description of plutonium that helps explain the unusual properties of plutonium, as recently reviewed by Hecker. (See also the article by Hecker in this issue.) The electronic structure of plutonium includes five 5f electrons with a very narrow energy width of the 5f conduction band, which results in a delicate balance between itinerant electrons (in the conduction band) or localized electrons and multiple lowenergy electronic configurations with nearly equivalent energies. These complex electronic characteristics give rise to unique macroscopic properties of plutonium that include six allotropes (at ambient pressure) with very close free energies but large (∼25%) density differences, a lowsymmetry monoclinic ground state rather than a high-symmetry close-packed cubic phase, compression upon melting (like water), low melting temperature, anomalous temperature-dependence of electrical resistance, and radioactive decay. Additionally, plutonium readily oxidizes and is toxic; therefore, the handling and fundamental research of this element is very challenging due to environmental, safety, and health concerns.

Download Full-text