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X-RAYS
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DeCS
Descriptor
English
:
X-Rays
Descriptor
Spanish
:
Rayos X
Descriptor
Portuguese
:
Raios X
Synonyms
English
:
Grenz Rays
Roentgen Rays
Tree Number:
G01.358.500.505.970
G01.750.250.970
G01.750.750.918
SP4.011.087.698.384.075.166.037
Definition
English
:
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.
Indexing Annotation
English
:
almost never IM; /diag use =
RADIOGRAPHY
(general) or /radiogr with diseases; /ther use =
X-RAY THERAPY
(general)or /radiother with diseases; do not index
X-rays
when using / rad eff: assume all /rad eff is
X-RAYS
unless otherwise specified (as /rad eff +
GAMMA RAYS
); Manual 19.8.60, 19.8.61, 19.8.63, 28.10; X-ray or x-ray in
translations
: follow text
Entry Combination - descr/qualif
English
:
X-Rays
/
diagnostic use
use
Radiography
X-Rays
/
therapeutic use
use
X-Ray Therapy
History Note
English
:
91(75); was see under RADIATION, IONIZING 1976-90; was see under RADIATION 1965-75
Allowable Qualifiers
English
:
AE
adverse effects
Record Number:
15363
Unique Identifier:
D014965
Occurrence in VHL
:
Similar:
DeCS
CID-10
SciELO
LILACS
LIS