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Interaction of slow neutrons with nuclides of scandium, titanium, vanadium and manganese

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

Total cross section measurements at various neutron energies were performed on metallic and oxide samples of natural Sc, Ti, V, and Mn. By means of the Christiansen filter technique the coherent scattering lengths were determined on natural and isotopically enriched samples of Ti-, V-, and Mn-compounds. From the measured values we deduced the following data:

  • • the absorption cross sections (at 0.0253 eV in barn) ofnatTi (6.43±0.06) and ofnatV (5.06±0.04);

  • • the bound coherent scattering lengths (in fm) ofnatTi (−3.370±0.013),46Ti (4.72±0.05),47Ti (3.53±0.07),48Ti (−5.86±0.02),49Ti (0.98±0.05),50Ti (5.88±0.10),natV (−0.443±0.014), and Mn (−3.750±0.018);

  • • the free potential radii (in fm) of Sc (3.60 ±0.10),46Ti (3.50±0.10),47Ti (3.60±0.10),48Ti (3.90±0.10),49Ti (4.10 ±0.15),50Ti (4.50±0.15),51V (5.20±0.20), and Mn (6.50±20).

On the basis of the well known resonance parameters in combination with new fits of bound levels the spin state scattering lengths, the spin incoherence, and the obtained potential radii are discussed. Total cross section calculations were performed by multi-level formalism and are compared with the measurements.

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Authors and Affiliations

  1. Fakultät für Physik, Technische Universität München, Reaktorstation Garching, Lichtenbergstrasse, W-8046, Garching, Germany

    L. Koester, K. Knopf & W. Waschkowski

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  1. L. Koester
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  2. K. Knopf
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  3. W. Waschkowski
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Additional information

Work supported by the Bundesministerium für Forschung und Technologie (03-45A-141).

We are grateful to Dr. H. Stärk, who made the activation analysis, and to Dr. R. Henkelmann for his determination of the oxigen content of several powdered metal samples. The continuous assistance by the staff of the workshops, the construction office and the reactor operators is appreciated as well as the financial support of the “Bundesministerium für Forschung und Technologie”.

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Koester, L., Knopf, K. & Waschkowski, W. Interaction of slow neutrons with nuclides of scandium, titanium, vanadium and manganese. Z. Physik A - Hadrons and Nuclei 345, 175–182 (1993). https://doi.org/10.1007/BF01293341

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  • DOI: https://doi.org/10.1007/BF01293341

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