It has been shown that the spatial distributions of F centers in the quartz Dewar are non-uniform from ESR spectrum with magnetic field gradient and 2-D ESR images. The concentration of F center is colsely related to the irradiation direction and density.
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美
- 從F心的有梯度場(chǎng)ESR譜和二維ESR圖象可以看出；石英杜瓦中產(chǎn)生的F心空間分布是不均勻的；其濃度與輻照方向和輻照強度密切相關(guān).
