I-LADP-2 Inkqubo yoMfuniselo ye-NMR ePulsed Umfanekiso obonisiweyo

Inkqubo yoMfuniselo ye-LADP-2 ye-NMR ePulsed

Inkcazelo emfutshane:

IPulsed Fourier iguqula iresonance yenyukliya yemagnethi isebenzisa umhlaba weRF ovulzayo ukusebenza kwinkqubo yenyukliya ukujonga impendulo yenkqubo yenyukliya kukubetha kwentliziyo, kwaye isebenzisa iteknoloji yenguqu ekhawulezayo yeFourier (FFT) ukuguqula umqondiso wedomeyini yexesha ube ngumqondiso wedomeyini yefrikhwensi, eyi ilingana nezihlandlo ezininzi eziqhubekayo zamaza amaza amandla enuclear magnetic resonance spectrometers zichulumancile ngaxeshanye, ngoko ke isenzeko semagnethi yenyukliya sinokubonwa kuluhlu olukhulu, kwaye umqondiso uzinzile Okwangoku, indlela yepulse isetyenziswa kwiispectrometers ezininzi ze-NMR, ngelixa indlela ye-pulse isetyenziswa kwi-MRI.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimvavanyo

1. Qonda ithiyori ye-physical theory kunye nolungiselelo lovavanyo lwenkqubo ye-PNMR.Funda ukucacisa izinto ezinxulumeneyo zomzimba kwi-PNMR usebenzisa imodeli ye-vector yeklasikhi.

2. Funda ukusebenzisa imiqondiso ye-spin echo (SE) kunye nokubola kwe-induction yamahhala (FID) ukulinganisa i-T₂(ixesha lokuphumla nge-spin-spin).Hlalutya impembelelo ye-magnetic field homogeneity kumqondiso we-NMR.

3. Funda ukwenza umlinganiselo we-T₁(ixesha lokuphumla le-spin-lattice) usebenzisa ukubuyisela umva.

4. Ukuqonda ngokufanelekileyo indlela yokuphumla, jonga ifuthe leeyoni zeparamagnetic kwixesha lokuphumla kwenyukliya.

5. Umlinganiselo T₂isisombululo se-copper sulfate kwiindawo ezahlukeneyo.Qinisekisa ubudlelwane bukaT₂ngotshintsho lokugxila.

6. Ukulinganisa ukufuduswa kweekhemikhali kwisampulu.

Iinkcukacha

Inkcazo	Iinkcukacha
Unikezelo lwamandla kwindawo yokumodareyitha	ubuninzi bangoku 0.5 A, ukulawulwa kwamandla ombane 0 - 6.00 V
Unikezelo lwamandla kwintsimi ye-homogenous	ubuninzi bangoku 0.5 A, ukulawulwa kwamandla ombane 0 - 6.00 V
I-oscillator frequency	20 MHz
Amandla entsimi yemagnethi	0.470 T
I-Magnetic pole diameter	100 mm
Umgama wepali yemagnethi	20 mm
intsimi yemagnethi homogeneity	20 ppm (10 mm × 10 mm × 10 mm)
Ubushushu obulawulwayo	36.500 °C
Uzinzo kwintsimi yemagnethi	Iiyure ezi-4 ezifudumeleyo ukuzinziswa, i-Larmor frequency drift ngaphantsi kwe-5 Hz ngomzuzu.

Uluhlu lwamacandelo

Inkcazo	Qty	Phawula
IYunithi yobushushu obuthe rhoqo	1	kuquka imagnethi kunye nesixhobo sokulawula ubushushu
Iyunithi yoThutho lweRF	1	kubandakanywa unikezelo lwamandla ombane wokumodareyitha
IYunithi yoKwamkelwa koMqondiso	1	kuquka unikezelo lwamandla endle homogenous kunye nobushushu ukubonisa
Ikhodi yamandla	1
Iintlobo ezahlukeneyo zeCable	12
Iityhubhu zesampula	10
Incwadi yokufundisa	1