Strontium-88 (⁸⁸Sr)
Cov Khoom Siv Nuclear Physics
⁸⁸Sr muaj cov khoom tshwj xeeb uas ntes tau neutron:
Qhov seem ntawm kev ntes cov neutron thermal yog qis heev (0.058 barn)
Nws yog ib qho khoom siv zoo tagnrho strontium isotope carrier hauv nuclear reactors
Nws yog siv ua tus qauv siv rau kev ntsuas qhov hnyav ntawm cov khoom siv accelerator (AMS) los ntsuas lwm cov isotopes strontium
Cov Kev Siv Tshuab Quantum
Kev suav lej quantum ntawm ion trap:
⁸⁸Sr⁺ optical moos hloov pauv (674 nm) kab dav
Nws yog siv los tsim cov rooj vag logic quantum optical
Kev ntsuas qhov tseeb:
⁸⁸Sr lattice moos system tsis paub meej txog 2 × 10⁻¹⁸
Nws yog siv rau kev tshawb nrhiav nthwv dej gravitational thiab kev sim relativity
Kev siv rau kev tshawb fawb txog kev lag luam thiab kev tshawb fawb
Kev kho cov khib nyiab radioactive: Ua ib qho chaw khaws cia strontium ruaj khov kom cais ⁸⁹Sr / ⁹⁰Sr
Kev tshuaj xyuas isotope dilution: Cov khoom siv txheem rau kev sib piv geological (Txoj kev Rb-Sr)
Cov ntaub ntawv hluav taws xob: Cov khoom siv siab purity ⁸⁸Sr(NO₃)₂ yog siv los npaj cov yeeb yaj kiab dielectric SrTiO₃
Cov khoom siv
Kev ruaj khov ntawm cua sov: Qhov kub ntawm kev lwj yog siab dua li ntawm cov nitrates ib txwm muaj (> 500 ℃)
Cov khoom siv kho qhov muag: UV txiav qhov ntev ntawm 300 nm
Kev ua haujlwm tshuaj lom neeg: Tsim cov dej tsis yaj uas muaj oxalates (SrC₂O₄·H₂O)
Kev siv tshuab ua kom muaj isotope ntau ntxiv
Cov txheej txheem tseem ceeb rau kev npaj cov khoom muaj purity siab ⁸⁸Sr(NO₃)₂:
1. Txoj kev sib cais electromagnetic: kev sib cais ntawm cov hlau strontium ion qhov chaw (purity> 99.99%)
2. Txoj kev sib pauv tshuaj lom neeg: kev faib ua feem ntawm cov isotope crown ether/strontium complex
3. Kev txhim kho laser: Siv qhov kev hloov pauv hluav taws xob tshwj xeeb ntawm ⁸⁸Sr (460.7 nm)
Kev Nyab Xeeb thiab kev ua haujlwm
⁸⁸Sr(NO₃)₂ yog ib qho tshuaj uas tsis muaj tshuaj lom (LD₅₀>5000 mg/kg), tab sis yuav tsum tsis txhob kov cov tshuaj uas ua rau cov khoom tawg (tej zaum yuav ua rau tawg). Khaws cia rau hauv qhov chaw qhuav kom tiv thaiv kev nqus dej thiab kev sib sau ua ke.
Xaus lus
Ua ib tug sawv cev ntawm cov isotopes strontium ruaj khov, cov strontium nitrate-88 uas muaj purity siab muaj txiaj ntsig zoo rau kev siv hauv kev siv tshuab quantum, kev nyab xeeb ntawm lub zog nuclear thiab kev tshawb fawb txog cov ntaub ntawv. Nws qhov purity ntawm nuclear zoo heev thiab kev ruaj khov ntawm tshuaj lom neeg ua rau nws yog ib qho khoom siv tseem ceeb rau kev hloov pauv ntawm kev tshawb fawb yooj yim mus rau hauv kev siv tshuab engineering.