radioactive shielding
121Isotopes of phosphorus — Although phosphorus (P) has multiple isotopes, only one of these isotopes is stable 31P; as such, it is considered a monoisotopic element. Standard atomic mass: 30.973762(2) uRadioactive isotopes of phosphorus include: * 32P; a beta emitter (1.71 …
122Intraoperative Electron Radiation Therapy — (or IOERT ) is the application of electron radiation directly to the residual tumor or tumor bed during cancer surgery. IOERT has been called precision radiotherapy , as the physician has direct visualization of the tumor, can exclude normal… …
123Non-rocket spacelaunch — Non rocket space launch (NRS) is a launch into space where some or all needed speed and altitude is provided by non rocket means, rather than simply using conventional chemical rockets from the ground. A number of alternatives to rockets have… …
124David A. Schauer — CDR DA Schauer, MSC, USN (retired) Radiation Specialist (1984 to 2004) Born 22 September 1961 (1961 09 22) (age 50) Elmer, New Jersey …
125Lightning rod — A lightning rod (USA) or lightning conductor (UK) is a single component in a lightning protection system. In addition to rods placed at regular intervals on the highest portions of a structure, a lightning protection system typically includes a… …
126electromagnetism — /i lek troh mag ni tiz euhm/, n. 1. the phenomena associated with electric and magnetic fields and their interactions with each other and with electric charges and currents. 2. Also, electromagnetics. the science that deals with these phenomena.… …
127transition element — Chem. any element in any of the series of elements with atomic numbers 21 29, 39 47, 57 79, and 89 107, that in a given inner orbital has less than a full quota of electrons. Also called transition metal. [1920 25] * * * Any chemical element with …
128Possible war crimes in the 2006 Lebanon War — Main article: 2006 Lebanon War Various groups and individuals, including Amnesty International, Human Rights Watch, and United Nations officials, accused both Israel and Hezbollah of violating international humanitarian law during the 2006… …
