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X-Radiation -- See X-Rays


Penetrating electromagnetic radiation emitted when the inner orbital electrons of an atom are excited and release radiant energy. X-ray wavelengths range from 1 pm to 10 nm. Hard X-rays are the higher energy, shorter wavelength X-rays. Soft x-rays or Grenz rays are less energetic and longer in wavelength. The short wavelength end of the X-ray spectrum overlaps the GAMMA RAYS wavelength range. The distinction between gamma rays and X-rays is based on their radiation source
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X-Radiations -- See X-Rays


Penetrating electromagnetic radiation emitted when the inner orbital electrons of an atom are excited and release radiant energy. X-ray wavelengths range from 1 pm to 10 nm. Hard X-rays are the higher energy, shorter wavelength X-rays. Soft x-rays or Grenz rays are less energetic and longer in wavelength. The short wavelength end of the X-ray spectrum overlaps the GAMMA RAYS wavelength range. The distinction between gamma rays and X-rays is based on their radiation source
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X-Ray -- See X-Rays


Penetrating electromagnetic radiation emitted when the inner orbital electrons of an atom are excited and release radiant energy. X-ray wavelengths range from 1 pm to 10 nm. Hard X-rays are the higher energy, shorter wavelength X-rays. Soft x-rays or Grenz rays are less energetic and longer in wavelength. The short wavelength end of the X-ray spectrum overlaps the GAMMA RAYS wavelength range. The distinction between gamma rays and X-rays is based on their radiation source
  1
 

X-Ray Absorptiometry -- See Absorptiometry, Photon


A noninvasive method for assessing BODY COMPOSITION. It is based on the differential absorption of X-RAYS (or GAMMA RAYS) by different tissues such as bone, fat and other soft tissues. The source of (X-ray or gamma-ray) photon beam is generated either from radioisotopes such as GADOLINIUM 153, IODINE 125, or Americanium 241 which emit GAMMA RAYS in the appropriate range; or from an X-ray tube which produces X-RAYS in the desired range. It is primarily used for quantitating BONE MINERAL CONTENT, especially for the diagnosis of OSTEOPOROSIS, and also in measuring BONE MINERALIZATION
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X-Ray Absorptiometry, Dual -- See Absorptiometry, Photon


A noninvasive method for assessing BODY COMPOSITION. It is based on the differential absorption of X-RAYS (or GAMMA RAYS) by different tissues such as bone, fat and other soft tissues. The source of (X-ray or gamma-ray) photon beam is generated either from radioisotopes such as GADOLINIUM 153, IODINE 125, or Americanium 241 which emit GAMMA RAYS in the appropriate range; or from an X-ray tube which produces X-RAYS in the desired range. It is primarily used for quantitating BONE MINERAL CONTENT, especially for the diagnosis of OSTEOPOROSIS, and also in measuring BONE MINERALIZATION
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  X-Ray Absorptiometry, Dual-Energy -- 2 Related Subjects   2
 

X-ray absorption fine structure, Extended -- See Extended X-ray absorption fine structure


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X-ray absorption near edge structure.   3
X-ray absorption near edge structure -- Congresses. : EXAFS and near edge structure III : proceedings of an international conference, Stanford, CA, July 16-20, 1984 / editors, K.O. Hodgson, B. Hedman, and J.E. Penner-Hahn  1984 1
 

X-Ray art motifs -- See Art - Art motifs - X-Ray


Topical term modified 17/1/07
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X-ray astronomy.   17
X-ray astronomy -- Congresses. : X-ray astronomy : proceedings of a symposium of the twenty-first plenary meeting of COSPAR, Innsbruck, Austria, 29 May to 10 June 1978 / edited by W. A. Baity and L. E. Peterson  1979 1
X-ray astronomy -- Research. : Spacefiles  2004 1
X-ray astronomy -- Textbooks : Foundations of high-energy astrophysics / Mario Vietri  2008 1
 

X-ray Breast Tomosyntheses -- See Mammography


Radiographic examination of the breast
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X-ray Breast Tomosynthesis -- See Mammography


Radiographic examination of the breast
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X-ray bursts -- See Also the narrower term Gamma ray bursts


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X-Ray CAT Scan -- See Tomography, X-Ray Computed


Tomography using x-ray transmission and a computer algorithm to reconstruct the image
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X-Ray CAT Scanner -- See Tomography Scanners, X-Ray Computed


X-ray image-detecting devices that make a focused image of body structures lying in a predetermined plane from which more complex images are computed
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X-Ray CAT Scanners -- See Tomography Scanners, X-Ray Computed


X-ray image-detecting devices that make a focused image of body structures lying in a predetermined plane from which more complex images are computed
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X-Ray CAT Scans -- See Tomography, X-Ray Computed


Tomography using x-ray transmission and a computer algorithm to reconstruct the image
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x-ray Chest : Making sense of the chest X-ray : a hands-on guide / Paul F. Jenkins  2013 1
 

X-Ray Computed Tomography -- See Tomography, X-Ray Computed


Tomography using x-ray transmission and a computer algorithm to reconstruct the image
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X-Ray Computed Tomography and Positron-Emission Tomography -- See Positron-Emission Tomography and Computed Tomography


Techniques for the combination of overlapping POSITRON-EMISSION TOMOGRAPHY and X-RAY COMPUTED TOMOGRAPHY images
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X-Ray Computed Tomography Scanner -- See Tomography Scanners, X-Ray Computed


X-ray image-detecting devices that make a focused image of body structures lying in a predetermined plane from which more complex images are computed
  1
 

X-Ray Computed Tomography Scanners -- See Tomography Scanners, X-Ray Computed


X-ray image-detecting devices that make a focused image of body structures lying in a predetermined plane from which more complex images are computed
  1
 

X-Ray Computer Assisted Tomography -- See Tomography, X-Ray Computed


Tomography using x-ray transmission and a computer algorithm to reconstruct the image
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X-Ray Computerized Axial Tomography -- See Tomography, X-Ray Computed


Tomography using x-ray transmission and a computer algorithm to reconstruct the image
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X Ray Computerized Tomography -- See Tomography, X-Ray Computed


Tomography using x-ray transmission and a computer algorithm to reconstruct the image
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X-ray contrast media -- See Radiographic contrast media


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X Ray Crystallographies -- See Crystallography, X-Ray


The study of crystal structure using X-RAY DIFFRACTION techniques. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
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X Ray Crystallography -- See Crystallography, X-Ray


The study of crystal structure using X-RAY DIFFRACTION techniques. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
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X-ray crystallography.   65
X-ray crystallography -- Congresses : Biomedical applications of synchrotron radiation / edited by Emilio Burattini and by Antonella Balerna  1996 1
X-ray crystallography -- History : The man in the monkeynut coat : William Astbury and the forgotten road to the double-helix / Kersten T. Hall  2014 1
X-ray crystallography -- Periodicals   3
 

X-ray crystallography Technique -- See Also the narrower term Rietveld method


  1
X-ray crystallography -- Technique.   5
 

X Ray, CT -- See Tomography, X-Ray Computed


Tomography using x-ray transmission and a computer algorithm to reconstruct the image
  1
 

X-Ray CT Scan -- See Tomography, X-Ray Computed


Tomography using x-ray transmission and a computer algorithm to reconstruct the image
  1
 

X-Ray CT Scanner -- See Tomography Scanners, X-Ray Computed


X-ray image-detecting devices that make a focused image of body structures lying in a predetermined plane from which more complex images are computed
  1
 

X-Ray CT Scanners -- See Tomography Scanners, X-Ray Computed


X-ray image-detecting devices that make a focused image of body structures lying in a predetermined plane from which more complex images are computed
  1
 

X-Ray CT Scans -- See Tomography, X-Ray Computed


Tomography using x-ray transmission and a computer algorithm to reconstruct the image
  1
 

X-Ray Densitometry -- See Absorptiometry, Photon


A noninvasive method for assessing BODY COMPOSITION. It is based on the differential absorption of X-RAYS (or GAMMA RAYS) by different tissues such as bone, fat and other soft tissues. The source of (X-ray or gamma-ray) photon beam is generated either from radioisotopes such as GADOLINIUM 153, IODINE 125, or Americanium 241 which emit GAMMA RAYS in the appropriate range; or from an X-ray tube which produces X-RAYS in the desired range. It is primarily used for quantitating BONE MINERAL CONTENT, especially for the diagnosis of OSTEOPOROSIS, and also in measuring BONE MINERALIZATION
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X-Ray Department -- See Radiology Department, Hospital


Hospital department which is responsible for the administration and provision of x-ray diagnostic and therapeutic services
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X-Ray Departments -- See Radiology Department, Hospital


Hospital department which is responsible for the administration and provision of x-ray diagnostic and therapeutic services
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X-ray detection : Imaging sensor technologies and applications / edited by Wuqiang Yang  2020 1
 

X-ray diagnosis -- See Diagnosis, Radioscopic



--subdivision Radiography under individual organs and regions of the body, e.g. Heart--Radiography
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X-Ray, Diagnostic -- See Radiography


Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film)
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X-Ray Diffraction   27
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