For 190 Po, improved values of α-energy E α = 7550(15) keV and half-life T 1/2 = 1.9 0.4 +0.6 ms were measured. By using correlated α-decay chains an α-branching ratio of 0.50(25) was deduced for 186 Pb. The reduced α-width systematic is extended for both of these ...
The decay of ${\mathrm{Ba}}^{131m}$ proceeds by a (78\ifmmode\pm\elseextpm\fi{}5)-keV $E3$ transition (${\ensuremath{\alpha}}_{K}=12.3\ifmmode\pm\elseextpm\fi{}1.5$), followed by a (107\ifmmode\pm\elseextpm\fi{}3)-keV $M1+E2$ transition (${\ensuremath{\alpha}}_{...
There is a warm tenuous partially ionized cloud (T∼104K,n(HI)∼0.1 cm−3,n(Hii∼ 0.22–0.44 cm−3) surrounding the solar system which regulates the environment of the solar system, determines the structure of the heliopause region, and feeds neutral interstellar gas into the inner...
The dose conversion factor (DCF) which gives the relationship between effective dose and potential alpha energy concentration of inhaled short-lived radon decay products is calculated with a dosimetric approach. The calculations are based on a lung dose model with a structure that is related to the...
a主要方式(α衰变、β衰变、γ跃迁)、衰变规律、简单计算; Fundamental mode (alpha decay, beta decay, gamma jump), decay rule, simple computation;[translate] a她容易发怒,经常为一点小事发脾气。 She easy to get angry, is frequently a minor matter has a fit of temper.[translate] ...
Reaction 1. The alpha decay of U-235 The time required for one-half of a sample of U-235 to turn into Th-231 is just over 700 million years! This value is known as U-235's half-life. Now that we have covered the basic characteristics of U-235, let's see how it is used as...
- 《International Journal of Cancer》 被引量: 16发表: 2016年 First identification of γ-ray transitions in 107Te Gamma-ray transitions in Te 107 have been identified for the first time. The experiment, which utilized the recoil decay tagging technique, was performed ... B Hadinia,B Ceder...
Helium is also formed from alpha-particle decay of radioactive elements such as uranium and thorium. It is considered a nonrenewable resource on Earth. CHARACTERISTICS Helium is a colorless, tasteless, odorless, non-toxic, and unreactive noble gas. ...
Alpha decay is not harmful, so it is commonly used as a power source for pacemakers in human hearts. Beta particles are free electrons that contain a large amount of energy. During beta decay, these high energy electrons are released. Because of the amount of energy released, beta decay is...
This chapter reviews the characteristics used to identify and classify dissimilatory sulfate-reducing bacteria and archaea. Even though most of the SRB have a curved or rod shape, the instances where cell anatomy is useful to identify SRP is discussed he