ʻO nā paipu X-ray cathode wili (Rotating Anode X-Ray Tubes) he kumu X-ray pololei kiʻekiʻe no nā kiʻi lapaʻau a me nā ʻoihana. E like me ka inoa e hōʻike nei, aia ia i kahi cathode wili a ʻo ia kekahi o nā mea nui o nā lako X-ray.
ʻO kahi paipu X-ray cathode wili e pili ana i kahi cathode, kahi anode, kahi rotor a me kahi stator. ʻO ke cathode kahi koʻokoʻo metala e hoʻopuka i nā electrons thermoelectrically, a ʻo ke anode e kū pono ana iā ia a wili a puni ia. Hana ʻia ka anode me kahi mea conductivity thermal kiʻekiʻe a he mau kahawai wai no ka hoʻomaʻalili ʻana. Hana pinepine ʻia ka anode me kahi metala refractory e like me ka tungsten, molybdenum, a i ʻole platinum, kahi e kūʻē i ka wela a me ka pōʻino radiation mai nā kukuna X-energy kiʻekiʻe.
Ke kuʻi ke kukuna uila i ka ʻili o ka cathode, hoʻomehana ʻia a hoʻokuʻu ʻia nā uila. Hoʻolalelale ʻia kēia mau uila i ka anode, kahi e hoʻolohi ʻia ai a hoʻopuehu ʻia, e hana ana i ka radiation X-ray ikaika kiʻekiʻe. Hoʻolaha like ka anode wili i ka wela i hana ʻia i ka ʻili anode holoʻokoʻa, a hoʻomaʻalili iā ia ma o ke kahawai wai e hōʻoia i ke kūpaʻa a me ka hilinaʻi o ka hoʻohana lōʻihi.
He nui nā pono o nā paipu X-ray cathode wili, me ka mana kiʻekiʻe, ka radiation X-ray ikaika kiʻekiʻe, ke au hoʻoikaika kiʻekiʻe, ka lakio signal-to-noise kiʻekiʻe, ka hiki ke hoʻololi i nā koi kiʻi like ʻole, a me ke ola lawelawe lōʻihi. No laila, ʻo ia ke kumu X-ray i koho ʻia ma nā kahua e like me ke kiʻi lapaʻau, ka ʻike ʻana i nā hemahema CT ʻoihana, a me ka hoʻāʻo ʻole e luku.
I ka hōʻuluʻulu manaʻo, he kumu X-ray mana kiʻekiʻe, paʻa a hilinaʻi hoʻi kahi ʻōmole X-ray e wili ana, e hāʻawi ana i nā kiʻi X-ray pololei, kiʻekiʻe a me ka hoʻonā kiʻekiʻe no nā ʻano hana kiʻi like ʻole.
Ka manawa hoʻouna: ʻApelila-06-2023