LADP-2 Teko Sistimi ea Pulsed NMR Setšoantšo se Featured

LADP-2 Sistimi ea Teko ea Pulsed NMR

Tlhaloso e Khutšoanyane:

Pulsed Fourier e fetola matla a khoheli a nyutlelie e sebelisa sebaka sa RF sa pulsed ho sebetsa tsamaisong ea nyutlelie ho bona karabelo ea sistimi ea nyutlelie ho phallo ea matla, 'me e sebelisa theknoloji e potlakileng ea Fourier transform (FFT) ho fetola lets'oao la nako ea domain hore e be frequency domain signal, e leng ho lekana le maqhubu a mangata a tsoelang pele a maqhubu a nyutlelie a resonance spectrometers a thabile ka nako e le 'ngoe, kahoo ketsahalo ea nuclear magnetic resonance e ka bonoa ka bongata bo boholo,' me pontšo e tsitsitse Hajoale, mokhoa oa ho otla o sebelisoa ho li-spectrometer tse ngata tsa NMR, ha Mokhoa oa pulse o sebelisoa ho MRI.

Re romelle lengolo-tsoibila

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Liteko

1. Utloisisa khopolo ea motheo ea 'mele le tlhophiso ea liteko ea tsamaiso ea PNMR.Ithute ho hlalosa liketsahalo tse amanang le 'mele ho PNMR u sebelisa mohlala oa vector oa khale.

2. Ithute ho sebelisa matšoao a spin echo (SE) le ho bola ha induction mahala (FID) ho lekanya T.₂(nako ea ho phomola ha spin-spin).Sekaseka tšusumetso ea matla a khoheli homogeneity ho lets'oao la NMR.

3. Ithute ho metha T₁(nako ea ho phomola ha spin-lattice) ho sebelisa ho hlaphoheloa ka morao.

4. Utloisisa ka mokhoa o nepahetseng mokhoa oa ho phomola, hlokomela phello ea li-ion tsa paramagnetic nakong ea phomolo ea nyutlelie.

5. Lekanya T₂tharollo ea koporo ea sulfate maemong a fapaneng.Fumana likamano tsa T₂ka phetoho ya maikutlo.

6. Lekanya ho falla ha lik'hemik'hale tse amanang le sampuli.

Litlhaloso

Tlhaloso	Litlhaloso
Phepelo ea matla sebakeng sa modulation	boholo ba hona joale 0.5 A, taolo ea motlakase 0 - 6.00 V
Phepelo ea matla ea tšimo ea homogenous	boholo ba hona joale 0.5 A, taolo ea motlakase 0 - 6.00 V
Maqhubu a oscillator	20 MHz
Matla a tšimo ea makenete	0.470 T
Bophara ba pole ea Magnetic	100 limilimithara
Bohole ba palo ea mabone	20 limilimithara
Magnetic field homogeneity	20 ppm (10 mm × 10 mm × 10 mm)
Mocheso o laoloang	36.500 °C
Botsitso ba tšimo ea Magnetic	Lihora tse 4 li futhumala ho tsitsisoa, maqhubu a Larmor a hoholeha ka tlase ho 5 Hz ka motsotso.

Lethathamo la Likarolo

Tlhaloso	Qty	Hlokomela
Setsi sa Mocheso o sa Tletseng	1	ho kenyelletsa makenete le sesebelisoa sa taolo ea mocheso
Setsi sa phetiso ea RF	1	ho kenyelletsa phepelo ea motlakase ea sebaka sa modulation
Yuniti ya ho Amohela Matshwao	1	ho kenyelletsa phepelo ea matla ea tšimo e tšoanang le pontšo ea mocheso
Mohala oa Matla	1
Mefuta e fapaneng ea Cable	12
Mehlala ea Li-tubes	10
Buka ea Litaelo	1