- Domeniu: Government
- Number of terms: 33950
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- Company Profile:
United States Department of Health and Human Services, Radiation Emergency Medical Management
非金属固体元素。有的碘放射性和非放射性同位素。放射性同位素碘的广泛应用在医学中的应用。放射性碘是裂变产物和一座核反应堆在意外发生后是对人的辐射剂量最大捐助国。
Industry:Medical devices
任何能够取代电子从原子，从而产生离子的辐射。高剂量的电离辐射可能会产生严重的皮肤或组织损伤。另请参阅 α 粒子、 β 粒子、 γ 射线、 中子、 x 射线。
Industry:Medical devices
一种辐射检测及测量仪器组成的充满气体的管含电极之间的电压但没有电流。当电离辐射通过管时，短而强的电流脉冲将从负电极传递到正面电极和测量或计数。每秒脉冲数措施辐射场的强度。盖革计数器是最常用的便携式辐射检测仪器。
Industry:Medical devices
The new international system (si) unit of radiation dose, expressed as absorbed energy per unit mass of tissue. The si unit "gray" has replaced the older "rad" designation. (1 gy = 1 joule/kilogram = 100 rad). Gray can be used for any type of radiation (e.g., alpha, beta, neutron, gamma), but it does not describe the biological effects of different radiations. Biological effects of radiation are measured in units of "sievert" (or the older designation "rem"). Sievert is calculated as follows: gray multiplied by the "radiation weighting factor" (also known as the "quality factor") associated with a specific type of radiation.
Industry:Medical devices
一个侧重于保护人类和环境免受辐射的科学领域。保健物理学使用物理、 生物学、 化学、 统计、 和电子仪器，帮助保护个人免受辐射的任何破坏性影响。更多的信息，请参阅 http://www.hps.org/ 健康物理社会网站。
Industry:Medical devices
