Rubidium-85 (⁸⁵Rb)
Sifooyinka Fiisikiska Atomka
⁸⁵Rb waxay leedahay qaab-dhismeed elektaroonik ah oo gobolka dhulka ah oo ah [Kr]5s¹ waxayna leedahay qaab-dhismeed atomik ah oo muhiim ah:
- D₁ line (794.6 nm)**: 5²S₁/₂→5²P₁/₂ kala-guurka
- Khadka D₂ (780.0 nm)**: 5²S₁/₂→5²P₃/₂ kala-guurka
Soo noqnoqosha kala-goynta hyperfine (3.035 GHz) waxay qiyaastii 50% ka hooseysaa tan ⁸⁷Rb. Farqigan waxaa si weyn loogu isticmaalaa tignoolajiyada qaboojinta laser-ka ee xulashada ah ee **isotope**.
Codsiga tiknoolajiyada Quantum
1. Fiisigiska atomka qabow:
Iyada oo ah isotope fermion ah (nuclear spin nus-integer), nidaamka isku-dhafka ah ee Bose-Fermi oo ka kooban ⁸⁵Rb iyo ⁸⁷Rb waa madal muhiim ah oo lagu barto isdhexgalka gaaska ee quantum degenerate.
Waxaa loo isticmaalaa in lagu daydo qaabka Hubbard ee tijaabooyinka bir-xidhka indhaha.
2. Macluumaadka Kuntuunta:
Xaaladda aan dareenka birlabta lahayn ee ⁸⁵Rb (m_F=0) waxaa loo isticmaali karaa sidii side kaydin xaalad isku xiran, waqtiga kala-baxana wuxuu gaari karaa dhowr ilbiriqsi.
3. Cabbiraadda saxda ah:
Isticmaal isbeddelka isotope-ka ⁸⁵Rb/⁸⁷Rb (1.2 GHz) si aad u hagaajiso heerka soo noqnoqoshada laysarka.
Codsiyada cilmi-baarista warshadaha iyo sayniska
- Shaandhada Atomka: Qolka uumiga Rb waxaa loo isticmaalaa in lagu sameeyo shaandheeyayaasha indhaha ee cidhiidhiga ah (
- Raadinta Isotope: Kobcinta iskudhisyada calaamadaysan ee ⁸⁵Rb si loo barto shaqada kanaalada ion-ka potassium ee noolaha.
- Shucaaca birlabta nukliyeerka: ⁸⁵Rb NMR (soo noqnoqoshada 16.5 MHz ee 2.35 T) ayaa loo isticmaalaa in lagu barto qaab-dhismeedka maxalliga ah ee isku-dhafka rubidium.
Tiknoolajiyada kala-soocidda Isotope
Hababka ugu muhiimsan ee lagu helo nadiifnimo sare ⁸⁵Rb oo laga helo rubidium dabiici ah waa:
1. Habka kala soocidda elektromagnetka: kala soocidda spectrometry-ga cufka (daahirnimo> 99.9%)
2. Habka kala soocidda laysarka: iyadoo la adeegsanayo khadka nuugista gaarka ah ee ⁸⁵Rb (sida 780.241 nm)
3. Habka is-weydaarsiga kiimikada: iyadoo lagu saleynayo saameynta jajabinta isotope ee isku-dhafka ether-ka taajka Rb
Badbaadada iyo hawlgalka
Iyada oo ah isotope deggan, ⁸⁵Rb ma laha khataro shucaac ah, laakiin qaabka birta waa in loo maareeyaa iyadoo la raacayo xeerarka badbaadada ee biraha alkali (qoyaanka u adkaysta iyo dabka u adkaysta). Isku-darka ay leedahay waa sun yar (LD₅₀>5 g/kg).
Gunaanad
⁸⁵Rb waxay leedahay qiimo gaar ah oo ku saabsan jilitaanka kuntum, cabbirka saxda ah iyo tignoolajiyada spectroscopy sababtoo ah sifooyinkeeda nukliyeerka ee deggan iyo qaab-dhismeedka heerka tamarta ee hodanka ah. Iyagoo ah "lamaane deggan" ee ⁸⁷Rb, labaduba waxay ka kooban yihiin aasaaska farsamada ee nidaamka codsiga isotope-ka rubidium, waxayna sii wadaan inay kor u qaadaan horumarinta xuduudaha ee fiisigiska atomka qabow iyo tignoolajiyada kuntum.