densitometer ọkpụkpụ bụ ngwa nyocha ahụike nke na-atụ mineral ọkpụkpụ mmadụ wee nweta data dị iche iche metụtara ya.A na-ekewa densitometer ọkpụkpụ kachasị na ahịa na mmalite narị afọ nke 21 n'ime ụzọ abụọ: ike X-ray absorptiometry na ultrasonic absorptiometry.Igwe X-ray absorptiometry nwere ike ime X-ray absorptiometry na-enweta ụdị ume abụọ, ya bụ obere ume ọkụ na elu foton ike dị elu, site na otu ngwaọrụ site na tube X-ray.Mgbe ọnụ ọgụgụ foton batara n'ime ahụ, usoro nyocha na-eziga mgbaàmà natara na kọmputa maka nhazi data iji nweta ọdịnaya ịnweta ọkpụkpụ.Ngwá ọrụ ahụ nwere ike ịlele ọkpụkpụ ọkpụkpụ n'akụkụ ọ bụla nke ahụ na oke ziri ezi na obere mmerụ ahụ na ahụ mmadụ.Usoro ọgwụgwọ radieshon iji chọpụta akụkụ bụ 1/30 nke x-ray obi na 1% nke CT.Enweghị nsogbu nke ire ure isi iyi redio, e jiriwokwa nke nta nke nta mepụta ya n'obodo ukwu ndị dị na China, atụmanya ndị a na-ekwekwa nkwa.
Sistemụ absorptiometry nke X-ray nwere ume abụọ mejupụtara tube X-ray, collimator, na ihe nchọpụta X-ray.A na-emepụta foton X-ray site na tube X-ray, nke nwere cathode na anode, bụ ndị a na-agbanye n'ime tube na-ekpo ọkụ.Ihe dị ka 99% nke ike nke tube X-ray na-ekpochapụ dị ka okpomọkụ, na ihe na-erughị 1% nke ume na-aghọ X-ray.A na-ejikọta eriri X-ray ka ọ bụrụ warara dị n'ụdị fan tupu ọ rute ebe a na-atụ.A na-eji collimator na-achịkwa ma na-egbochi ubi irradiation nke ihe ngosi ihe ngosi iji hụ na ọkụ ahụ nwere ike ikpuchi ebe ihe ngosi dị irè nke onye nchọpụta.Igwe X-ray na-agafe na mpaghara isiokwu a na-ahọrọ nke ọma site na ọkpụkpụ na anụ ahụ dị nro na mpaghara ahụ.Mgbe X-ray beam gafere onye ọrịa, ọ na-akụta onye na-achọpụta X-ray, na ike nke ụzarị ahụ mgbe ọ gafere n'ime ahụ na-agbanwe ka ọ bụrụ akara eletrik ma dekọọ ya.
Ihe nchọpụta Whale3025/1613 na-ahụ maka ihe nleba anya dị larịị nke Haobo mepụtara n'onwe ya na-enweta teknụzụ amorphous silicon (a-Si), nke nwere njiri mara mma onyonyo dị elu, nnukwu ike ike yana ọtụtụ ngwa njedebe.Ọ nwere multi-uru mmemme-achịkwa mmezi gia, nke nwere ike ọ bụghị nanị izute ngwa chọrọ nke elu uche, ma na-ezute chọrọ nke nnukwu ike nso ndapụta, na ike n'ọtụtụ ebe na-emegharị ka ngwa chọrọ nke ọgwụ nchọpụta.
Nkwado ngwaahịa ngwaike
Oge nzipu: Jul-14-2022