We measure amounts of radiation exposure in units called millirem (mrem). Higher readings are measured in mSv, which you can multiply by 100 to get mrem. In the United States, people receive an average annual dose of about 360 mrem. More than 80 percent of this dose comes from natural ...
measured valuesoscillationsphotometryphotons鈥 The physical units most commonly used in photometry have limited value outside the field of illumination engineering. They tend also to conceal rather than display the physical concept of radiation as understood at present.Only by making the concepts of ...
Although imaging quality and resolution improve with the use of MDCT, one must understand that this is at the expense of radiation dose. Theeffective radiation dosetakes into account the tissue being irradiated and the type of radiation, and it is measured in units of rem or sievert (Sv), ...
It is measured in units of J/kg. For the absorbed dose the particular name of this unit has been chosen to be gray (Gy), with 1Gy=1J/kg. Apart from Gy, there is another unit of absorbed dose called the rad. Even though rad has mostly been replaced by Gy, it can still be found...
展开 关键词: biology and medicine radiation hazards and protection equations irradiation measured values neutron beams radiation doses tables 年份: 1965 收藏 引用 批量引用 报错 分享 全部来源 求助全文 ResearchGate osti.gov 相似文献Quantities and Units in Radiation Protection Dosimetry - 《Icru Report...
The radiation dose to an astronaut, measured in units ofGray(Gy, defined asJoulesper kilogram (J/kg)), is deposited with a distribution in tissues that results from the specific energy fluence of the particles. The heavier the charged particle, the greater the amount of energy deposited per ...
and the pluralities of pixels in the first and second imaging elementsandare respectively divided into pluralities of pixel units, and a pixel unit width win the second imaging elementis set to be larger than a pixel unit width win the first imaging elementAccordingly, a dual-energy radiation...
1920s,deBrogliedevelopedhistheoryofthe ,whichwassoon afterwardprovedcorrectbyelectrondiffraction experiments,andthedistinctionbetween particlesandwaves beimportant.Oneofthemanywaysinwhichdifferenttypesofradiationaregroupedtogetherisintermsof.Thewordionizingreferstotheabilityoftheradiationtoionizeanatomoramoleculeof...
at the same time provide the operator with a visual display (on the screen of an oscilloscope) in the form of a plot ofradioactive decay. Thus, once the radiation is detected by the scintillation detector and subsequently measured by the scaler, the operator can obtain information in a ...
Theaccuracy（准确）ofanexperimenttellshowclosetheresultofthemeasurementistothetruevalueofthemeasuredquantity.Theprecision（精度）ofanexperimentisameasureoftheexactness（精确）oftheresult.Everyexperimentershouldconsideraccuracyandprecisionsimultaneously,itwouldbeawasteofefforttotrytoimprovetheprecisionofameasurement...