Sistemụ Nnwale LADP-2 nke Pulsed NMR Foto Apụtapụtara

Sistemụ Nnwale LADP-2 nke NMR Pulsed

Nkọwa Dị Mkpirikpi:

Ndagharị magnetik nuklia nke Pulsed Fourier na-eji ubi RF nke pulsed mee ihe na sistemụ nuklia iji hụ mmeghachi omume nke sistemụ nuklia na pulse, ma na-eji teknụzụ Fourier transform (FFT) ngwa ngwa iji gbanwee akara mpaghara oge ka ọ bụrụ akara ngalaba ugboro ugboro, nke dabara na ọtụtụ ebili mmiri ugboro ugboro na-aga n'ihu na-agagharị. A na-akpali akpali n'otu oge ahụ, yabụ enwere ike ịhụ ihe na-eme ka magnetik nuklia dị n'ọtụtụ oke, ihe mgbaàmà ahụ kwụsiri ike. Ugbu a, a na-eji usoro pulse eme ihe na ọtụtụ spectrometers NMR, ebe a na-eji usoro pulse eme ihe na MRI.

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Nkọwa Ngwaahịa

Akara Ngwaahịa

Nnwale

1. Ghọta ozizi anụ ahụ na nhazi nnwale nke sistemụ PNMR. Mụta ịkọwa ihe ndị metụtara anụ ahụ na PNMR site na iji ụdị vektọ oge gboo.

2. Mụta iji akara nke spin echo (SE) na free induction decay (FID) tụọ T₂(oge ezumike spin-spin). Nyochaa mmetụta nke nha nhata nke ubi magnet na mgbaàmà NMR.

3. Mụta ịtụ T₁(oge ezumike spin-lattice) site na iji mgbake azụ.

4. Ghọta usoro ntụrụndụ nke ọma, hụ mmetụta nke ion paramagnetic na oge ntụrụndụ nuklia.

5. Tụọ T₂nke ihe ngwọta ọla kọpa sulfate na njupụta dị iche iche. Chọpụta mmekọrịta dị n'etiti T na T.₂na mgbanwe nke ntinye uche.

6. Tụọ nha kemịkalụ dị n'ihe nlele ahụ.

Nkọwapụta

Nkọwa	Nkọwapụta
Inye ike nke mpaghara nhazi	Oke ọkụ kachasị elu 0.5 A, iwu voltaji 0 – 6.00 V
Inye ike nke ubi homogenous	Oke ọkụ kachasị elu 0.5 A, iwu voltaji 0 – 6.00 V
Ugboro oscillator	20 MHz
Ike ubi magnetik	0.470 T
Dayameta ogidi magnetik	100 mm
Anya nke ogidi magnetik	20 mm
Nha nhata nke ubi magnetik	20 ppm (10 mm × 10 mm × 10 mm)
Okpomọkụ a na-achịkwa	36.500 Celsius
Iguzosi ike n'ọhịa magnetik	Awa 4 ka ọ dị ọkụ, ugboro Larmor na-agafe ihe na-erughị 5 Hz kwa nkeji.

Ndepụta Akụkụ

Nkọwa	Ọnụọgụ	Ihe ndetu
Nkeji okpomọkụ na-agbanwe agbanwe	1	gụnyere magnet na ngwaọrụ njikwa okpomọkụ
Ngalaba Nzipu RF	1	gụnyere ike ọkọnọ nke mpaghara modulation
Ngalaba Nnata Mgbaàmà	1	gụnyere ike nke nhazi ubi na ngosipụta okpomọkụ
Eriri Ike	1
USB dị iche iche	12
Ọkpọkọ ihe nlele	10
Ntuziaka nkuzi	1