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.

51. Positron is the Antiparticle of electron and is another kind of fermion having the same mass m e and spin s = 1/2 as electron and the charge +e opposite to the electron's

52. Molecular imaging with specific positron-emission tomography (PET) and single-photon emission computed tomography (SPECT) tracers allows various molecular targets and metabolic processes to be assessed and is thus a valuable adjunct to MRI.

53. Antiparticle, subatomic particle having the same mass as one of the particles of ordinary matter but opposite electric charge and magnetic moment. Thus, the positron (positively charged electron) is the Antiparticle of the negatively charged electron.

54. This study aimed to use 18 F-fluorodeoxyglucose positron emission tomography/computed tomography (18 F-FDG PET/CT) to measure cerebral Cortices' metabolism activity and then to explore their associations with olfaction in patients with PTOD.

55. A very simple type of "atom" incorporating Antiparticles is positronium, a brief pairing of a positron and an electron that may occur before their annihilation; it was first created and identified in the laboratory in 1951

56. Corresponding to most kinds of particles, there is an associated antimatter Antiparticle with the same mass and opposite charge (including electric charge).For example, the Antiparticle of the electron is the positively charged positron, which is produced naturally in certain types of radioactive decay.

57. We sought to establish the relationships between standard postmortem measures of AD neuropathology and Antemortem [11 C]PIB–positron emission tomography ([11 C]PIB‐PET) analyzed with the Centiloid (CL) method, a standardized scale for Aβ‐PET quantification.

58. Antiparticle [an″tĭ-pahr´tĭ-k'l] either of a pair of elementary particles that have electric charges and magnetic moments of opposite sign and are the same in all other properties, such as mass, lifetime, and spin, e.g., the electron and positron

59. Antiparticle: A subatomic particle, such as a positron or antiproton, having the same spin, magnitude of electric charge, magnitude of magnetic moment, mass, and mean lifetime as the particle to which it corresponds, but the opposite sign of charge, opposite direction of …

60. Antiparticles A pair of elementary particles, such as the electron plus positron or the proton plus antiproton, that have an identical rest mass but a charge, strangeness, and other fundamental properties of equal magnitude but opposite sign (positive rather than negative and vice versa)

61. They include the MRI findings of atrophy of the medial temporal lobe, cerebrospinal fluid (CSF) biomarkers β-amyloid and τ, the visualisation of metabolic deficits on positron emission tomography (PET) using [18F]-fluoro-2-deoxy-D-glucose (FDG) and the emerging possibility to demonstrate amyloid deposits in vivo using PET ligands.

62. Antiprotons Technical Report Chamberlain, Owen ; Segre, Emilio ; Wiegand, Clyde Since the development of Dirac's theory of the electron and the brilliant confirmation of one of its most startling predictions by the discovery of the positron by Anderson, it has been assumed most likely that the proton would also have its charge conjugate, the

63. History: SLAC and Stanford have had a very long history of designing, building, and operating electron-positron Colliders leading to several Nobel Prizes: CBX [0.13 GeV x 0.13 GeV two ring collider at Stanford 1963-1967] SPEAR [2.5 GeV x 2.5 GeV one ring collider at SLAC 1972-1988] PEP [15 GeV x 15 GeV one ring collider at SLAC 1980-1988]

64. @article{osti_915070, title = {Antiprotons}, author = {Chamberlain, Owen and Segre, Emilio and Wiegand, Clyde}, abstractNote = {Since the development of Dirac's theory of the electron and the brilliant confirmation of one of its most startling predictions by the discovery of the positron by Anderson, it has been assumed most likely that the proton would also have its charge conjugate, the

65. When a low-energy electron Annihilates a low-energy positron (antielectron), the most probable is the creation of two or more photons, since the only other final-state Standard Model particles that electrons and positrons carry enough mass-energy to produce are neutrinos, which are approximately 10,000 times less likely to produce, and the creation of only one photon is