似少年
发表于 2025-3-26 22:22:46
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做作
发表于 2025-3-27 01:56:59
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秘密会议
发表于 2025-3-27 07:47:06
Introduction and Theoretical Overview,on of subsurface tissues by an external source this is, of course, not possible and the dose which may be delivered may often be limited by the dose which is judged acceptable to overlying tissues in the path of the projected beam. The minimization, therefore, of this necessary but undesirable radia
neutralize
发表于 2025-3-27 10:04:32
Heather E. Arsenault,Jennifer A. Benanti less complex, leading eventually to a more stable configuration. The probability λ of this process occurring within a unit interval of time is characteristic of the nuclear species and it is independent of the length of time during which the radioactive nucleus has been in existence. The value of λ
foliage
发表于 2025-3-27 15:27:08
Zhengrui Zhang,Chittaranjan Daserd, von der Qualität der Strahlung und von den Absorptionseigenschaften des Gewebes. Bei einer energiereichen γ-Strahlung spielt die Schwächung der Strahlenintensität durch Absorption im Gewebe bis zu Entfernungen von einigen Zentimetern eine geringe Rolle. Hier ist im wesentlichen das Abstandsgese
一再遛
发表于 2025-3-27 20:30:13
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不能妥协
发表于 2025-3-27 23:08:54
https://doi.org/10.1007/978-3-031-36339-9utic radiological problems. Even more realistically, especially from an economic viewpoint, the availability of the products of the chain reactor in the middle 1940’s seemed to open up much wider vistas in the field of radiation therapy. Now one was offered an assortment of isotopes of practically a
社团
发表于 2025-3-28 03:31:28
Structural Characterization of Deuterides,ent from the experience with radium beam units, which have been in operation for more than thirty years. The essentia] features of both types of units are the same. The radioactive material is encased in a thick shield, from which the gamma rays are allowed to escape only through one small adjustabl
Left-Atrium
发表于 2025-3-28 07:05:21
Hydrophobic Interaction in D2O Versus H2Oven Substanzen ausgehende Strahlung am menschlichen Organismus Schäden hervorruft. Neben der Erfordernis eines geeigneten Schutzes vor einer äußeren Bestrahlung, die von offenen und umschlossenen Präparaten ausgehen kann, gilt es, durch geeignete Maßnahmen die stets vorhandene Gefahr der Beschädigun
懒洋洋
发表于 2025-3-28 14:26:32
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