Kodi chubu cha x-ray n'chiyani?

Machubu a X-ray ndi ma diode otulutsa mpweya omwe amagwira ntchito pamagetsi okwera.
Chubu cha X-ray chimakhala ndi ma electrode awiri, anode ndi cathode, zomwe zimagwiritsidwa ntchito kuti cholingacho chiphulitsidwe ndi ma electron ndi ulusi kuti zitulutse ma electron, motsatana. Mizati yonseyi imatsekedwa mu galasi la vacuum kapena ceramic housings.

Gawo lamagetsi la chubu cha X-ray lili ndi mphamvu yamagetsi yochepa yotenthetsera ulusi ndi jenereta yamagetsi yayikulu yogwiritsira ntchito mphamvu yamagetsi yayikulu ku mitengo iwiri. Pamene waya wa tungsten udutsa mphamvu yokwanira kuti upange mtambo wa ma elekitironi, ndipo mphamvu yamagetsi yokwanira (yofanana ndi ma kilovolti) ikagwiritsidwa ntchito pakati pa anode ndi cathode, mtambo wa ma elekitironi umakokedwa kupita ku anode. Panthawiyi, ma elekitironi amagunda chandamale cha tungsten mu mphamvu yamagetsi komanso yachangu. Ma elekitironi othamanga kwambiri amafika pamwamba pa chandamale, ndipo kuyenda kwawo kumatsekedwa mwadzidzidzi. Gawo laling'ono la mphamvu yawo ya kinetic limasinthidwa kukhala mphamvu yamagetsi ndikutulutsidwa mu mawonekedwe a X-ray. Mphamvu yamagetsi yomwe imapangidwa mu mawonekedwe awa imatchedwa bremsstrahlung.

Kusintha mphamvu ya filament kungasinthe kutentha kwa filament ndi kuchuluka kwa ma elekitironi omwe amatulutsa, motero kusintha mphamvu ya chubu ndi mphamvu ya ma X-ray. Kusintha mphamvu ya kusonkhezera ya chubu cha X-ray kapena kusankha cholinga china kungasinthe mphamvu ya X-ray yomwe yachitika kapena mphamvu yake pa mphamvu zosiyanasiyana. Chifukwa cha kuphulika kwa ma elekitironi amphamvu kwambiri, chubu cha X-ray chimagwira ntchito pa kutentha kwakukulu, komwe kumafuna kuziziritsa kwa cholinga cha anode.

Ngakhale kuti mphamvu ya machubu a X-ray popanga ma X-ray ndi yochepa kwambiri, pakadali pano, machubu a X-ray akadali zida zogwiritsira ntchito kwambiri popanga ma X-ray ndipo akhala akugwiritsidwa ntchito kwambiri mu zida za X-ray. Pakadali pano, ntchito zachipatala zimagawidwa makamaka m'machubu a X-ray ozindikira matenda ndi machubu a X-ray ochiritsa.