Experimental Spectroscopy I - IAEA Atomic and Molecular Data Unit
... Transmission through 100 cm of gas at 101.325 kPa and 295 K: (a) He, (b) air, and (c) Ar. ...
... Transmission through 100 cm of gas at 101.325 kPa and 295 K: (a) He, (b) air, and (c) Ar. ...
AT622 Section 1 Electromagnetic Radiation
... Rather, we measure its average magnitude, < S >, over some time interval that is a characteristic of the detector. This time averaged quantity is referred to as the radiant-flux density. Strictly speaking, the flux density emerging from the surface is known as the exitance and the flux density incid ...
... Rather, we measure its average magnitude, < S >, over some time interval that is a characteristic of the detector. This time averaged quantity is referred to as the radiant-flux density. Strictly speaking, the flux density emerging from the surface is known as the exitance and the flux density incid ...
02. Radiation physics - RPOP- IAEA
... The different natural elements ranging from hydrogen to uranium are built of increasing numbers of nucleons. The hydrogen nucleus has one proton and the uranium nucleus has 92 protons and 146 neutrons. It is the number of protons and hence the number of electrons that define the element and its chem ...
... The different natural elements ranging from hydrogen to uranium are built of increasing numbers of nucleons. The hydrogen nucleus has one proton and the uranium nucleus has 92 protons and 146 neutrons. It is the number of protons and hence the number of electrons that define the element and its chem ...
Chiyan Luo, , 368 (2003); DOI: 10.1126/science.1079549
... coherence is preserved throughout the medium. Both effects are incorporated in our approach. However, unlike the Smith-Purcell effect, in which radiation is generated via a periodic grating but then propagates through a uniform medium, this CR is generated and propagates within the same crystal in t ...
... coherence is preserved throughout the medium. Both effects are incorporated in our approach. However, unlike the Smith-Purcell effect, in which radiation is generated via a periodic grating but then propagates through a uniform medium, this CR is generated and propagates within the same crystal in t ...
Joseph John Thomson 1856-1940
... Ernest Rutherford is considered the father of nuclear physics. Indeed, it could be said that Rutherford invented the very language to describe the theoretical concepts of the atom and the phenomenon of radioactivity. Particles named and characterized by him include the alpha particle, beta particle ...
... Ernest Rutherford is considered the father of nuclear physics. Indeed, it could be said that Rutherford invented the very language to describe the theoretical concepts of the atom and the phenomenon of radioactivity. Particles named and characterized by him include the alpha particle, beta particle ...
Radiation protection
Radiation protection, sometimes known as radiological protection, is the science and practice of protecting people and the environment from the harmful effects of ionizing radiation.Ionizing radiation is widely used in industry and medicine, and can present a significant health hazard. It causes microscopic damage to living tissue, which can result in skin burns and radiation sickness at high exposures (known as ""tissue effects""), and statistically elevated risks of cancer at low exposures (""stochastic effects"").Fundamental to radiation protection is the reduction of expected dose and the measurement of human dose uptake. For radiation protection and dosimetry assessment the International Committee on Radiation Protection (ICRP) and International Commission on Radiation Units and Measurements (ICRU) have published recommendations and data which is used to calculate the biological effects on the human body, and set regulatory and guidance limits.