On the internal bremsstrahlung in the ²⁰⁴Tl beta decay

Journal Article · Wed Jan 01 04:00:00 EST 1958 · Physica

DOI:https://doi.org/10.1016/S0031-8914(58)94933-4· OSTI ID:4333294

Ricci, R. A.

The experimental distribution of the internal bremsstrahlung accompanying the beta decay in Tl²⁰⁴ was measured with the scintillation technique in the energy region between 80 and 400 kev. The results obtained were compared with the theoretical distributions calculated on the basis of the Knipp and Uhlenbeck theory, where the influence of the Coulomb field of the nucleus is neglected, and with the Nilsson theory which takes the Coulomb effect into account. The experimental results agree fairly well with the Nilsson distribution in the region above 150 kev; this agreement no longer holds below this energy and an experimental excess of photons is found, which cannot be explained as due to radiation following the electron capture in Tl²⁰⁴. The Knipp and Uhlenbeck distribution shows disagreement with the experimental one in the whole energy interval investigated. These results seem to point in the same direction as those found recently by other authors for many other nuclides.

• Research Organization: Instituto di Fisica sperimentale del Politecnico, Torin
• Sponsoring Organization: USDOE
• NSA Number: NSA-12-010955
• OSTI ID: 4333294
• Journal Information: Physica, Journal Name: Physica Journal Issue: 1-5 Vol. 24; ISSN 0031-8914
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BETA DECAY
BREMSSTRAHLUNG
CAPTURE
COLLECTIVE MODEL
ELECTRIC FIELDS
ELECTRONS
GAMMA RADIATION
MEASURED VALUES
NILSSON-MOTTELSON MODEL
NUCLEAR MODELS
NUCLEAR THEORY
NUCLEI
PHYSICS
SCINTILLATION COUNTERS
SPECTRA
THALLIUM 204