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Energy loss straggling of 5.486MeV alpha particles in Melinex, Al, Ni and Cu

机译:Melinex,Al,Ni和Cu中5.486MeVα粒子的能量损失散失

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摘要

Energy loss straggling of 5.486. MeV alpha particles passing through Melinex, Al, Ni and Cu has been studied as a function of energy loss. The reduction in straggling towards the end of the particle range is predicted by considering the reduction of the stopping power and of the effective charge in the capture and loss of electrons at lower energies. These measurements are compared with theoretical predictions of Bohr (1915) and Titeica (1939). The measured values agreed with Titeica results at high and intermediate energy region, and large discrepancies at low energy region are found. Titeica results are greater than Bohr results by a factor of about 1.5-2.
机译:能量损失徘徊在5.486。已经研究了通过Melinex,Al,Ni和Cu的MeVα粒子与能量损失的关系。通过考虑在较低能量下电子的俘获和损失中的停止能力和有效电荷的减少,来预测向粒子范围末端散落的减少。将这些测量结果与Bohr(1915)和Titeica(1939)的理论预测进行了比较。在高能量和中能量区域,测量值与Titeica结果一致,在低能量区域发现较大的差异。 Titeica的结果比Bohr的结果大约1.5-2倍。

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