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Nuclear reactivity control using laser induced polarization
Nuclear reactivity control using laser induced polarization
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机译:使用激光诱导极化的核反应性控制
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摘要
A control element for reactivity control of a fission source provides an atomic density of .sup.3 He in a control volume which is effective to control criticality as the .sup.3 He is spin-polarized. Spin- polarization of the .sup.3 He affects the cross section of the control volume for fission neturons and hence, the reactivity. An irradiation source is directed within the .sup.3 He for spin-polarizing the .sup.3 He. An alkali-metal vapor may be included with the .sup.3 He where a laser spin- polarizes the alkali-metal atoms which in turn, spin-couple with . sup.3 He to spin-polarize the .sup.3 He atoms.
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机译:用于控制裂变源的反应性的控制元件在控制体积中提供3 He的原子密度,当3 He自旋极化时,该原子密度可有效控制临界度。 He 3的自旋极化影响裂变质子的控制体积的横截面,从而影响反应活性。将辐射源对准3 He内,以使3 He自旋极化。 He 3 He中可能包含碱金属蒸气,其中激光使碱金属原子自旋极化,然后与旋旋耦合。 sup.3 He使.sup.3 He原子自旋极化。
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