He mea kaulana ʻo Granite no ke kumu o nā huahana computed tomography (CT) ʻoihana ma muli o kona mau pono he nui. Ma kēia ʻatikala, e ʻimi mākou i kēia mau pono a no ke aha ʻo granite ke koho maikaʻi loa no nā mīkini CT.
ʻO ka mea mua, he kūpaʻa mīkini koʻikoʻi ko ka granite. He mea paʻa a mānoanoa hoʻi ia, e kūpono ana ia ma ke ʻano he kumu no nā mīkini CT ʻoihana. ʻAʻole e ʻōwili, wili, a hoʻololi paha ka Granite ma lalo o ke kaomi, he mea nui ia i ka hōʻoia ʻana i ka pololei o nā scan CT. He mea nui nō hoʻi kēia kūpaʻa e hōʻoia ʻaʻole e haʻalulu ka mīkini a hoʻopilikia i ka maikaʻi o nā kiʻi.
ʻO ka lua, he haʻahaʻa ka coefficient o ka hoʻonui wela o ka granite. ʻO ke ʻano kēia, ʻaʻole ia e hoʻonui a ʻūlū nui paha i ka wā e hōʻike ʻia ai nā loli o ka mahana, he mea nui ia no nā mīkini CT ʻoihana e pono ai ke mālama i ko lākou pololei i nā ʻano hana like ʻole. ʻO ka coefficient haʻahaʻa o ka hoʻonui wela e hōʻemi pū i ka pilikia o ka deformation a i ʻole ka misalignment o ka gantry, hiki ke hoʻopilikia nui i ka maikaʻi o nā scan CT.
ʻO ke kolu, he mau ʻano hoʻemi haʻalulu maikaʻi loa ko ka granite. He pilikia nui ka haʻalulu i nā mīkini CT ʻoihana, no ka mea hiki iā ia ke hoʻopilikia i ka maikaʻi o nā kiʻi. ʻO nā ʻano hoʻemi haʻalulu o ka Granite e ʻae i ka mea e omo i nā oscillations me ka ʻole o ka hoʻouna ʻana iā lākou i ka mīkini CT, kahi e kōkua ai i ka hana ʻana i nā scans kiʻekiʻe.
ʻO ka hā, he kiʻekiʻe ke kūpaʻa o ka granite i nā kemika. ʻAʻole ia e pane i ka hapa nui o nā kemika a hiki ke kū i ka hōʻike ʻana i nā kemika ʻino a i ʻole nā akika. ʻO kēia ka mea e kūpono ai ke kumu granite no nā mīkini CT i hoʻohana ʻia i nā hale hana hana a i ʻole nā hale noiʻi kahi i kiʻekiʻe ai ka pilikia o ka hōʻike ʻana i nā kemika.
ʻO ka mea hope loa, maʻalahi ka mālama ʻana i ka granite. ʻAʻole ia e popo, ʻinoʻino, a palaho paha i ka hala ʻana o ka manawa, e lilo ia i mea kūpono no ka hoʻohana lōʻihi. Loaʻa i ka mea nā waiwai kūpaʻa maikaʻi, e hōʻoiaʻiʻo ana i ka lōʻihi a me ke ola lōʻihi, kahi e hōʻemi ai i nā kumukūʻai mālama.
I ka hopena, ʻo ka granite ka mea maikaʻi loa no ke kumu o nā mīkini CT ʻoihana ma muli o kona kūpaʻa mechanical maikaʻi loa, ka coefficient haʻahaʻa o ka hoʻonui ʻana o ka thermal, nā ʻano damping haʻalulu, ke kūpaʻa kemika kiʻekiʻe a me ka maʻalahi o ka mālama ʻana. He mea hilinaʻi ia no nā ʻoihana e pono ai nā scans kiʻekiʻe no ka kaohi maikaʻi, ka noiʻi, a me nā noi hoʻomohala. ʻO ke koho ʻana i kahi kumu granite no kāu mīkini CT ʻoihana he hoʻopukapuka kālā maikaʻi ia i ka hōʻoia ʻana i ka pololei a me ka hilinaʻi o kāu mau scans no nā makahiki he nui e hiki mai ana.
Ka manawa hoʻouna: Dec-08-2023