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ID number:407716
Author:
Evaluation:
Published: 02.12.2010.
Language: Latvian
Level: Elementary school
Literature: n/a
References: Not used
Extract

Rentgenstari ir elektromagnētiskie viļņi ar viļņa garumu, kas mazāks, kā ultravioletajam starojumam, bet lielāks, kā gamma stariem.

Vācu fiziķis V. Rentgens 1895.gadā konstatēja kādus nezināmus starus, kuri turpmākajos gados izmainīja visu pasauli (lielākoties medicīnas jomu).

Īpašības
Rentgenstaru viļņa garums ir robežās no 10 nm līdz 100 pm (atbilstošās frekvences ir 30 PHz līdz 3 EHz). Tos sauc par mīkstajiem rentgenstariem.
Rentgenstarus ar viļņa garumu zem 100pm, sauc par cietajiem rengenstariem.
Mijiedarbībā ar vielu, rentgenstari daļēji absorbējas un izkliedējas. Rentgenstarus ar viļņa garumu virs 300 pm, ievērojami absorbē gaiss.

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