aparatura c2 Flashcards

(13 cards)

1
Q

in ce se masoara intensitatea electronilor?

A

mA

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2
Q

in ce se masoara energia fotonilor?

A

kV

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3
Q

structura aparatului Rx propriu-zis

A

tub radiogen
transformator de inalta tensiune
transformator de joasa tensiune
cabluri
masa de comanda

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4
Q

accesorii aparat Rx

A

stativ
ecrane, dispozitive de centrare, fixare, compresie
filtre pt raze secundare

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5
Q

componenetele tubului de Rx

A

catod (-)
anod(+)

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6
Q

descrie catod-ul

A

negativ
emite electroni
filamente din tungsten
cupa de focalizare- concentreaza electronii

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7
Q

descrie anod-ul

A

tungsten+reniu
tipuri:
- stationar: stoma, portabil
- rotativ: uz general

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8
Q

ce face stator-ul?

A

produce camp magnetic

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9
Q

ce face rotor-ul?

A

roteste discul anodic

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10
Q

ce face tija anodului- molibden

A

reduce conductia caldurii

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11
Q

numeste transformatoarele si circuitele

A

transformator de inalta tensiune
transformator de joasa tensiune
autotransformator
reostat-> redresoara (trans curentul alternativ in direct)

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12
Q

ce reglezi prin intermediul mesei de lucru?

A

kV(energia)
mA(intensitata)
timp

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13
Q

expunere automata (DEA)

A

detecteaza nivelul de radiatii+ opreste automat expunerea

evita supra/subexpunerea

poz gresita=erori de imagine

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