| 41. | Polonium alloyed with beryllium provides an efficient neutron source.
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| 42. | Several studies have shown that there is a genetic component to beryllium sensitivity.
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| 43. | Establishing beryllium sensitivity is the first step in diagnosis.
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| 44. | Although the evidence that stopping exposure to beryllium decreases progression of the disease,
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| 45. | A typical neutron probe contains a pellet of americium-241 and beryllium.
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| 46. | In the vapour phase, beryllium oxide is present as discrete diatomic molecules.
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| 47. | It is readily hydrolysed forming beryllium hydroxide and ammonia.
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| 48. | A thick beryllium reflector ( ~ 10 cm ) surrounds the core radially.
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| 49. | Specializes in flat ( plano ) metal ( aluminum & beryllium ) optics.
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| 50. | The most effective moderating nuclei are hydrogen, deuterium, beryllium and carbon.
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