If your country permits users to receive higher activity sources, you must notify us at time of order. Radioactive Material Exempt Quantities Isotope Source Max Domestic(uCi) NRC Limit - Maximum Activity per Source Max International(Bq) IAEA Limit - Maximum Activity Per Source(Bq) Max Inter...
radioisotope14C acquired from the atmosphere when they formed part of a living plant. The14C decays to the nitrogen isotope14N with a half-life of 5730 years. Measurement of the amount of radioactive carbon remaining in the material thus gives an estimate of its age. Also called:carbon-14 ...
被引量: 55发表: 1949年 Radiolabeling of an enteric coated tablet by (n,γ) radioactivation of erbium-170 for scintigraphic imaging Enteric coated tablets containing small quantities of a stable erbium isotope were irradiated in a neutron flux to produce radioactive tablets labeled with... A Parr...
a radioactive isotope with a half life of 1.28 billion years. It's a beta emitter, with an energy of 1.3 MeV (millions of electron volts). Due to the very long half life, the activity is rather low, meaning you need a bit of it to actually get a measurable quantity of radiation...
The concentration of radioactive isotopes or isotope ratios in a chondrite is commonly used to identify specimens from the same fall [21]. The various spectrometric methods used in isotopic studies of meteorites provide information, such as the nature of the parent body, the length of time spent...
It was speculated the main form of tritium which existed in the defects of both steels was hydrogen isotope molecules, hydrocarbons (CH3T), or an atomic tritium cluster trapped by a dislocation cluster. Sharpe et al. [25] also investigated the distribution of tritium in the near-surface of ...
Other radioactive compounds of 63Ni can be pre-pared in the researcher's laboratory by reprocessing the 63Ni salts or they can be obtained from certain companies that specialize in custom production of 63Ni compounds (Isotope Products Laboratories, Burbank, California 91504, U.S.A.; New ...
Both have the same atomic number, but different number of neutrons. The one with the two extra neutrons is radioactive and undergoes radioactive decay. The radioactive isotope of carbon was used to develop carbon dating tool, which has made the dating of various relics possible....
isotope technologyadhesioncalcium 45cesium 137cobalt 60electrodepositioniron 55preparationstrontium 90tablesThe present communication describes the rapid electrodeposition of those nuclides commonly employed as reference samples for the calibration of nuclear particle detection equipment. Those nuclides dealt with ...
Fenton or Fenton-like oxidation for treatment of organic radioactive wastes is a promising technology with applications to a range of organic wastes. This review details this process; exploring potential challenges, pitfalls and opportunities for industrial usage with radioactive wastes. The application ...