The scattering of long wavelength neutrons by irradiated and unirradiated quartz
- 1 November 1958
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 3 (35) , 1280-1286
- https://doi.org/10.1080/14786435808233310
Abstract
Measurements have been made of the transmission of neutrons of wave-lengths between 5 and 10 Å through 10 cm of unirradiated and pile irradiated Brazilian quartz crystals. The total transmission cross section of the unirradiated crystal varied as [sgrave]A=0.55+1.63λ in the measured wavelength range. After irradiation with 6.4 × 1018 fast n° cm−2, as indicated by the [S(n°p)P] reaction, additional scattering waa found. This amounted to 0.18 barns per molecule between 12 and about 9 Å rising continuously below 9 Å. The measurements are discussed in relation to optical absorption measurements and radiation damage theory.Keywords
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