Lub tshuab nqus tsev twj tso kua mis yog lub tshuab nqus tsev tshwj xeeb uas siv cov ntsiab lus ntawm cryogenics kom ua tiav lub tshuab nqus tsev siab. Nws lub luag haujlwm tseem ceeb yog tshem tawm cov roj seem ntawm qhov chaw kaw, ua rau nws yog ib qho cuab yeej tseem ceeb hauv ntau yam kev tshawb fawb thiab kev lag luam uas tsis muaj gases tseem ceeb heev. Hauv tsab xov xwm no, peb delve rau hauv lub hom phiaj, kev ua haujlwm, thiab qhov tseem ceeb ntawm cryopumps.
Lub hom phiaj ntawm Cryopumps
Lub hom phiaj tseem ceeb ntawm cryopump yog tsim thiab tswj kom muaj kev khiav tawm ib puag ncig. Qhov no yog ua tiav los ntawm kev ua kom txias ntawm qhov chaw rau qhov kub thiab txias, feem ntau qis dua -150 degree, uas tso cai rau cov pa roj rau condense thiab ua raws li qhov chaw. Lub twj tso kua mis lub qhov dej txias ua lub ntxiab rau cov pa roj, tshem tawm lawv los ntawm lub chamber thiab tsim kom muaj lub tshuab nqus tsev siab.
Cryopumps muaj txiaj ntsig tshwj xeeb hauv cov ntawv thov uas lub tshuab nqus tsev ib txwm tsis tuaj yeem ua tiav qib siab ntawm lub tshuab nqus tsev. Lawv feem ntau ua haujlwm hauv kev tshawb fawb txog kev tshawb fawb, kev tsim khoom semiconductor, thiab kev tshawb nrhiav qhov chaw, qhov twg ultra-high lub tshuab nqus tsev yog qhov tseem ceeb rau kev sim siab, kev ua khoom, thiab kev ua haujlwm.
Kev ua haujlwm ntawm Cryopumps
Kev ua haujlwm ntawm cryopump suav nrog ntau yam tseem ceeb thiab cov txheej txheem. Lub twj tso kua mis feem ntau muaj cov ntiv tes txias lossis cryostat, uas yog txias siv lub tub yees xws li kua nitrogen lossis helium. Cov ntiv tes txias yog coated nrog cov khoom siv sorbent uas muaj kev sib raug zoo rau cov pa roj, ua kom muaj txiaj ntsig zoo adsorption.
Raws li tus ntiv tes txias txias, gases nyob rau hauv lub chamber condense ntawm nws nto. Qee cov pa roj, xws li dej vapor thiab carbon dioxide, condense ncaj qha, thaum lwm tus yog adsorbed los ntawm cov khoom sorbent. Kev sib xyaw ua ke ntawm condensation thiab adsorption tso cai rau lub cryopump tshem tawm ntau cov pa roj tau zoo.
Ntxiv nrog rau cov ntiv tes txias, cryopumps feem ntau suav nrog kev tsim kho dua tshiab. Cov txheej txheem no ua ntu zus ua kom sov cov ntiv tes txias kom tshem tawm cov roj adsorbed, tso cai rau lawv tawm mus thiab qhov chaw yuav rov tsim dua tshiab rau kev siv ntxiv.
Qhov tseem ceeb ntawm Cryopumps
Qhov tseem ceeb ntawm cryopumps yog nyob rau hauv lawv lub peev xwm los tsim thiab tswj hwm ultra-high nqus ib puag ncig nrog kev sib kis tsawg thiab tom qab roj siab. Qhov no yog qhov tseem ceeb rau ntau daim ntawv thov uas muaj cov pa roj tuaj yeem cuam tshuam nrog kev sim, kev puas tsuaj rau cov khoom siv rhiab, lossis cov khoom tsis huv.
Hauv kev tshawb fawb txog kev tshawb fawb, cryopumps ua kom muaj kev sim siab hauv thaj chaw xws li kev tshawb fawb saum npoo av, atomic physics, thiab kev tshawb fawb quantum. Lawv tshem tawm qhov kev pheej hmoo ntawm cov pa paug, tso cai rau cov kws tshawb fawb los soj ntsuam thiab ntsuas qhov tshwm sim nrog qhov tsis muaj qhov tseeb.
Hauv kev lag luam semiconductor, cryopumps yog qhov tseem ceeb rau kev tsim cov khoom siv hluav taws xob ua haujlwm siab. Ultra-high lub tshuab nqus tsev yuav tsum tau tiv thaiv kom txhob muaj kab mob thiab xyuas kom meej lub purity ntawm cov ntaub ntawv thaum lub sij hawm ilv txheej txheem ntawm lithography, etching, thiab deposition.
Tsis tas li ntawd, cryopumps ua lub luag haujlwm tseem ceeb hauv kev tshawb nrhiav chaw. Nyob rau hauv lub dav hlau thiab satellites, lawv tuav lub tshuab nqus tsev ntawm cov cuab yeej tseem ceeb, ua kom ntseeg tau kev ua haujlwm hauv qhov chaw hnyav.
Cryopumps yog cov cuab yeej tseem ceeb uas ua rau muaj kev tsim thiab kev saib xyuas ntawm lub tshuab nqus tsev siab heev. Lawv qhov tseem ceeb yog nyob rau hauv lawv lub peev xwm los tshem tawm cov roj seem seem kom zoo, muab qhov chaw huv thiab tswj tau rau kev tshawb fawb, kev lag luam, thiab kev tshawb nrhiav chaw. Raws li thev naus laus zis txuas ntxiv mus, cryopumps yuav ua lub luag haujlwm tseem ceeb hauv kev thawb cov ciam teb ntawm kev paub txog txuj ci thiab kev tsim kho tshiab.
