Electron Spin Resonances in Gamma-Ray Irradiated Sodium Chlorate. I

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Abstract
Single crystals of NaClO3 were subjected to gamma‐ray irradiation at room temperature. Analysis of the resulting electron spin resonance spectrum indicates the production of three paramagnetic centers, initially, each with an effective spin of ½. The measured parameters of a center having resolved hyperfine structure and identified as ClO3 were g∥ = 2.0085±0.0010, g⊥ = 2.0090±0.0010, A = 14.8±0.1 G, and B = 21.2±0.1 G. No hyperfine interaction was detected for the remaining two centers having g∥ = 2.007±0.001 and g⊥ = 2.020±0.001, and g≃2.008, respectively. The centers are reasonably stable at room temperature for several months.

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