Isistimu Yokuhlola ye-LADP-2 Yesithombe Esifakiwe se-Pulsed NMR

Uhlelo Lokuhlola lwe-LADP-2 lwe-Pulsed NMR

Incazelo emfushane:

I-Pulsed Fourier iguqula i-nuclear magnetic resonance isebenzisa insimu ye-RF evunguzayo ukuze isebenze ohlelweni lwenuzi ukuze ibuke impendulo yohlelo lwenuzi ku-pulse, futhi isebenzisa ubuchwepheshe be-Fourier transform (FFT) obusheshayo ukuguqula isignali yesizinda sesikhathi sibe isignali yesizinda samafrikhwensi, okulingana ne-multifrequency eyodwa eqhubekayo ama-spectrometer e-nuclear magnetic resonance resonance ajabule ngesikhathi esifanayo, ngakho-ke i-nuclear magnetic resonance phenomenon ingabonwa ebangeni elikhulu, futhi isignali izinzile Njengamanje, indlela ye-pulse isetshenziswa kuma-spectrometer amaningi e-NMR, kuyilapho Indlela ye-pulse isetshenziswa ku-MRI.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izivivinyo

1. Qonda ithiyori yomzimba eyisisekelo kanye nokucushwa kokuhlola kohlelo lwe-PNMR.Funda ukuchaza izenzakalo zomzimba ezihlobene ku-PNMR usebenzisa imodeli ye-vector yakudala.

2. Funda ukusebenzisa amasiginali we-spin echo (SE) kanye nokubola kokungeniswa kwamahhala (FID) ukukala i-T₂(isikhathi sokuphumula se-spin-spin).Hlaziya umthelela we-magnetic field homogeneity kusiginali ye-NMR.

3. Funda ukukala i-T₁(isikhathi sokuphumula se-spin-lattice) usebenzisa ukubuyisela emuva.

4. Qonda ngendlela efanele indlela yokuphumula, bheka umthelela wama-ion we-paramagnetic ngesikhathi sokuphumula kwe-nuclear.

5. Kala u-T₂isisombululo se-copper sulfate ezindaweni ezihlukahlukene.Nquma ubudlelwano bukaT₂ngokushintsha kokugxilisa ingqondo.

6. Linganisa ukugudluzwa kwamakhemikhali okuhlobene kwesampula.

Imininingwane

Incazelo	Imininingwane
Ukunikezwa kwamandla kwenkambu yokushintshashintsha	umkhawulo wamanje ngu-0.5 A, ukulawulwa kwamandla kagesi 0 - 6.00 V
Ukunikezwa kwamandla kwenkambu ye-homogenous	umkhawulo wamanje ngu-0.5 A, ukulawulwa kwamandla kagesi 0 - 6.00 V
Imvamisa ye-oscillator	20 MHz
Amandla enkundla kazibuthe	0.470 T
Ububanzi besigxobo sikazibuthe	100 mm
Ibanga le-Magnetic pole	20 mm
I-homogeneity yensimu yamagnetic	20 ppm (10 mm × 10 mm × 10 mm)
Izinga lokushisa elilawulwayo	36.500 °C
Ukuzinza kwenkundla kazibuthe	Amahora angu-4 afudumele ukuze azinziswe, i-Larmor frequency drift ngaphansi kuka-5 Hz ngomzuzu.

Uhlu Lwezingxenye

Incazelo	Qty	Qaphela
I-Constant Temperature Unit	1	okuhlanganisa uzibuthe kanye nedivayisi yokulawula izinga lokushisa
I-RF Transmitting Unit	1	kufaka phakathi ukunikezwa kwamandla kwenkambu yokushintshashintsha
Iyunithi Yokwamukela Isignali	1	okuhlanganisa ukunikezwa kwamandla kwenkambu efanayo kanye nesibonisi sezinga lokushisa
Intambo Yamandla	1
Ikhebula elihlukahlukene	12
Amashubhu esampula	10
Incwadi Yokufundisa	1