positron in English
The term accelerators most commonly refers to particle accelerators, devices for increasing the velocity of subatomic particles such as protons, electrons, and positrons .
Use "positron" in a sentence
1. You can read more about Positron by viewing the Positron Company Profile.
2. The positron is an antielectron.
3. The Beijing Electron–Positron Collider II (BEPC II) is a Chinese electron–positron collider, a type of particle accelerator, located in Beijing, People's Republic of China.
4. The antielectron, or positron, was discovered in 19
5. This was confirmed by the positron annihilation technique.
6. The vacancy defects of samples were measured by slow positron annihilation.
7. We investigate physicss properties of positronium and the way of positron - electron annihilation.
8. Positron emission happens when an up quark changes into a down quark.
9. Cyclotron Facility We provide imaging agents used in positron emission tomography
10. The positron (β +) is the Antiparticle of the electron (β − particle)
11. It's antiparticle, the positron, has exactly the same mass, but a positive electric charge.
12. The Bremsstrahlungs accounted for the remaining 0.03% using the average positron kinetic energy of 395.5 keV
13. And the positron (positively charged electron) is the Antiparticle of the electron that is negatively charged.
14. The antihydrogen atoms are composed of a positron (an antimatter electron) orbiting an antiproton nucleus.
15. Antiproton annihilation enjoys several advantages over positron annihilation as an energy source for spacecraft propulsion
16. The adiabatic nuclei approximation is used to study low energy positron collisions with hydrogen molecules.
17. The observed pressure dependence of the total positron annihilation rates in alkali metals has been studied.
18. The applications of positron annihilation technique in the research of some metal - functional materials are introduced.
19. One signature of positron - electron annihilation is gamma rays carrying 511 thousand electron - volts ( keV ) of energy.
20. At both institutes he worked on the ALEPH experiment and Large Electron–Positron Collider at CERN.
21. Objective To evaluate the value of high energy positron imaging in the diagnosis of colon neoplasm.
22. What does Antiparticle mean? A subatomic particle, such as a positron or antiproton, having the same spin, magnitude
23. For example, the Antiparticle of the electron is the antielectron (which is often referred to as positron)
24. It is found that positron at the grass- boundary can be trapped by zinc vacancies and vacancy defect.
25. Reactions such as e− + e+ → γ + γ (the two-photon annihilation of an electron-positron pair) are an example.
26. In 1941 he proposed the interpretation of the positron as a positive energy electron traveling backward in time.
27. Both rely on mathematical calculations to determine the location from which a positron or phot on was emitted.
28. An atom of antihydrogen, for instance, is composed of a negatively-charged antiproton being orbited by a positively-charged positron.
29. The Antiparticle corresponding to an electron is a positron, which has the same mass as an electron but a positive charge.
30. Reduced Cerebrospinal fluid amyloid-β42 and increased retention of florbetapir positron emission tomography are biomarkers reflecting cortical amyloid load in Alzheimer's disease
31. Despite new staging criteria, which take into account the viability of a myeloma lesion, positron emission tomography (PET) is not used routinely.
32. When a particle like an electron meets up with an Antimatter particle like a positron, the particles destroy each other.
33. When an electron collides with a positron the two particles disappear, or annihilate,[http://Sentencedict.com] to create a high-energy photon.
34. The 3.8-metre (12 ft) wide concrete-lined tunnel, constructed between 1983 and 1988, was formerly used to house the Large Electron–Positron Collider.
35. Food and Drug Administration (FDA) has cleared the Biograph Vision, a new positron emission tomography/computed tomography (PET-CT) system from Siemens Healthineers
36. Positron, positively charged subatomic particle having the same mass and magnitude of charge as the electron and constituting the Antiparticle of a negative electron
37. These particles are a promising source because they often decay into Antineutrons or hyperons and are themselves a relatively common product of electron-positron annihilations.
38. Carbon C 11 Choline is a radiotracer consisting of Choline labeled with the positron-emitting isotope carbon C 11 with potential imaging use
39. Can you produce a proton-Antiproton pair from a photon in a way analogous to electron-positron pair production? The answer to this is yes, it's definitely possible
40. Antiparticles In the standard model for describing fundamental particles and interactions, every particle has an antiparticle. For example, the positron is the antiparticle of the electron
41. The Mallinckrodt Institute of Radiology (MIR) Cyclotron Facility provides positron emission tomography (PET) isotopes, radiochemicals, radiotracers and radiopharmaceuticals to the research and medical communities.
42. Biograph Vision ™ is a first-of-its-kind, next-generation, high-precision combined positron emission tomography (PET) / computed tomography (CT) system developed by Siemens Healthineers
43. Antiparticles In the standard model for describing fundamental particles and interactions, every particle has an Antiparticle. For example, the positron is the Antiparticle of the electron
44. The ground state up quark incompletely Annihilates with the ground state anti down quark to form a positron, [u.sub.0] + [ [bar.d].sub.0] [right arrow] [e.sup.+]
45. Amyloid PET Positron Emission Tomography (PET) is a minimally-invasive diagnostic imaging procedure used to distinguish normal from diseased tissue in conditions such as cancer, ischemic heart disease, and some neurologic disorders.
46. Positron emission tomography was used to measure cerebral activity and to evaluate regional interrelationships within visual Cortices and their projections during rapid eye movement (REM) sleep in human subjects
47. The higher rest mass energies of the proton and Antiproton yield a total of 1877 MeVt per annihilation event, compared with 1.02 MeV released by electron-positron annihilation.
48. While a positron and an electron usually annihilate to form a pair of gamma-ray photons traveling in opposite directions, the annihilation of an Antiproton with a proton is more complicated
49. These minor changes in blockages caused a 300 percent improvement in blood flow, and using cardiac positron emission tomography, or "PET," scans, blue and black is no blood flow, orange and white is maximal.
50. These minor changes in blockages caused a 300 percent improvement in blood flow, and using cardiac positron emission tomography, or " PET, " scans, blue and black is no blood flow, orange and white is maximal.