Inkqubo yovavanyo ye-LADP-2 ye-Pulsed NMR

Inkcazo emfutshane:

I-Pulsed Fourier transform nuclear magnetic resonance isebenzisa i-pulsed RF field ukusebenza kwinkqubo yenyukliya ukujonga impendulo yenkqubo yenyukliya kwi-pulse, kwaye isebenzisa itekhnoloji ye-fast Fourier transform (FFT) ukuguqula isignali ye-time domain ibe yisignali ye-frequency domain, elingana ne-multiple single frequency continuous wave. Ii-nuclear magnetic resonance spectrometers ziyavuya ngaxeshanye, ngoko ke i-nuclear magnetic resonance phenomenon inokubonwa kuluhlu olukhulu, kwaye isignali izinzile Okwangoku, indlela ye-pulse isetyenziswa kwii-spectrometers ezininzi ze-NMR, ngelixa indlela ye-pulse isetyenziswa kwi-MRI.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimvavanyo

1. Qonda ithiyori esisiseko yezinto eziphilayo kunye nokwakheka kovavanyo kwenkqubo ye-PNMR. Funda ukuchaza izinto eziphilayo ezinxulumene nayo kwi-PNMR usebenzisa imodeli yevektha yakudala.

2. Funda ukusebenzisa imiqondiso ye-spin echo (SE) kunye ne-free induction decay (FID) ukulinganisa i-T₂(ixesha lokuphumla le-spin-spin). Hlalutya impembelelo yokuhambelana kwe-magnetic field kwisignali ye-NMR.

3. Funda ukulinganisa u-T₁(ixesha lokuphumla nge-spin-lattice) kusetyenziswa i-reverse recovery.

4. Ukuqonda ngendlela efanelekileyo indlela yokuphumla, jonga impembelelo yee-ion ze-paramagnetic kwixesha lokuphumla kwenyukliya.

5. Umlinganiselo T₂yesisombululo se-copper sulfate kumanqanaba ahlukeneyo. Fumana ulwalamano lwe-T₂ngotshintsho lokugxila.

6. Linganisa ukuhanjiswa kweekhemikhali okunxulumene nesampulu.

Iinkcukacha

Inkcazo	Iinkcukacha
Ubonelelo lwamandla kwindawo yokuguqula	ubuninzi bamandla ombane 0.5 A, ummiselo wevolthi 0 – 6.00 V
Ubonelelo lwamandla lwentsimi efanayo	ubuninzi bamandla ombane 0.5 A, ummiselo wevolthi 0 – 6.00 V
I-frequency ye-Oscillator	20 MHz
Amandla entsimi yemagnethi	0.470 T
Ububanzi bepali yemagnethi	100 mm
Umgama wepali yemagnethi	20 mm
Ukuhambelana kwentsimi yamagnetic	20 ppm (10 mm × 10 mm × 10 mm)
Ubushushu obulawulwayo	36.500 °C
Uzinzo lwentsimi yemagnethi	Iiyure ezi-4 zifudumele ukuze zizinzile, i-Larmor frequency idlula ngaphantsi kwe-5 Hz ngomzuzu.

Uluhlu lweeNdawo

Inkcazo	Ubungakanani	Phawula
Iyunithi yoBushushu obuQhelekileyo	1	kuquka imagnethi kunye nesixhobo sokulawula ubushushu
Iyunithi yokudlulisa i-RF	1	kubandakanya ukunikezelwa kwamandla kwintsimi yokuguqula
Iyunithi Yokufumana Isignali	1	kubandakanya umbane wentsimi efanayo kunye nomboniso wobushushu
Ikhodi yamandla	1
Iintambo ezahlukeneyo	12
Iityhubhu zeSampuli	10
Incwadi Yemiyalelo	1