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The clarity, or purity, of a diamond refers to internal inclusions of the diamond, and is one of the 4-Cs in determining a diamond's value.Common inclusions that appear inside diamonds are black carbon spots and small cracks, commonly referred to as fractures or "feathers", due to their feathery whitish appearance when viewed from above or through the side.
Gemstone irradiation is a process in which a gemstone is exposed to artificial radiation in order to enhance its optical properties.High levels of ionizing radiation can change the atomic structure of the gemstone's crystal lattice, which in turn alters the optical properties within it. [1]
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The proton therapy center and the cyclotron closed operations on December 5, 2014. [9] The decision was made due to a lack of revenue and debt incurred by the center, as well as advances in proton therapy around the country that "now make the equipment and methods at the proton therapy center out of date."
When a YouTube channel reaches a specific milestone and is deemed eligible for a YouTube Creator Reward, [1] they are awarded a relatively flat trophy in a metal casing with a YouTube play button symbol. The trophies are of different sizes: each button and plaque gets progressively bigger with the channel's subscriber count. [4]
The Radiation Oncology Department [32] operates a proton cyclotron that produces fast neutrons from directing 50.5 MeV protons onto a beryllium target. The UW Cyclotron is equipped with a gantry mounted delivery system an MLC to produce shaped fields. The UW Neutron system is referred to as the Clinical Neutron Therapy System (CNTS). [33]
Diamond enhancement, a treatment that improves the gemological characteristics of a natural diamond; Hydrogen fuel enhancement, adding hydrogen to conventional hydrocarbon fuel in an attempt to improve the fuel economy and/or power output of an internal combustion engine; Input enhancement, a technique for teaching a language to non-native speakers
There is a risk of radiation exposure to other individuals (women/children/fetus), anaphylaxis, neutropenia (low neutrophils), and thrombocytopenia (low platelet). Zevalin , another radioligand therapy that targets non-Hodgkin lymphoma CD20 ligand but using Yttrium-90 as the radioisotope, was FDA approved in 2002.