Sistimi ea Teko ea LADP-2 ea Pulsed NMR Setšoantšo se Hlahisitsoeng

Sistimi ea Teko ea LADP-2 ea NMR e Pulsed

Tlhaloso e Khutšoanyane:

Pulsed Fourier e fetolang matla a nyutlelie e sebedisa pulsed RF field ho sebetsa tsamaisong ya nyutlelie ho bona karabelo ya sistimi ya nyutlelie ho pulse, mme e sebedisa theknoloji e potlakileng ya Fourier transform (FFT) ho fetola letshwao la nako la sebaka hore e be letshwao la sebaka sa maqhubu, e leng se lekanang le maqhubu a mangata a le mong a tswelang pele a maqhubu a nyutlelie. Di-spectrometer tsa nuclear magnetic resonance di a thahasellisa ka nako e le nngwe, kahoo ketsahalo ya nuclear magnetic resonance e ka bonwa ka bongata, mme letshwao le tsitsitse. Hona jwale, mokgwa wa pulse o sebediswa ho di-spectrometer tse ngata tsa NMR, ha mokgwa wa pulse o sebediswa ho MRI.

Romella imeile ho rona

Qaqiso ea Sehlahisoa

Li-tag tsa Sehlahisoa

Liteko

1. Utloisisa khopolo-taba ea motheo ea 'mele le sebopeho sa liteko sa sistimi ea PNMR. Ithute ho hlalosa liketsahalo tsa 'mele tse amanang le tsona ho PNMR u sebelisa mohlala oa vector oa khale.

2. Ithute ho sebelisa matšoao a spin echo (SE) le free induction decay (FID) ho lekanya T₂(nako ea ho phomola ha spin-spin). Hlahloba tšusumetso ea ho tšoana ha matla a makenete ho lets'oao la NMR.

3. Ithute ho lekanya T₁(nako ea ho phomola ka leralla la spin-lattice) ho sebelisoa ho hlaphoheloa ka morao.

4. Utloisisa mokhoa oa ho phomola ka boleng, hlokomela phello ea li-ion tsa paramagnetic nakong ea ho phomola ha nyutlelie.

5. Tekanyo ea T₂ea tharollo ea sulfate ea koporo maemong a fapaneng. Fumana kamano ea T₂ka phetoho ea ho tsepamisa maikutlo.

6. Lekanya ho falla ha dikhemikhale ha sampole.

Litlhaloso

Tlhaloso	Litlhaloso
Phepelo ea motlakase ea tšimo ea modulation	motlakase o phahameng ka ho fetisisa 0.5 A, taolo ea motlakase 0 - 6.00 V
Phepelo ea matla ea tšimo e ts'oanang	motlakase o phahameng ka ho fetisisa 0.5 A, taolo ea motlakase 0 - 6.00 V
Maqhubu a oscillator	20 MHz
Matla a matla a makenete	0.470 T
Bophara ba palo ea makenete	100 mm
Sebaka sa palo ea makenete	20 mm
Ho tšoana ha matla a makenete	20 ppm (10 mm × 10 mm × 10 mm)
Mocheso o laoloang	36.500 °C
Botsitso ba matla a khoheli	Lihora tse 4 li futhumetse hore li tsitsisoe, maqhubu a Larmor a theoha ka tlase ho 5 Hz ka motsotso.

Lethathamo la Likarolo

Tlhaloso	Bongata	Hlokomela
Yuniti ea Mocheso o sa Feleng	1	ho kenyeletsoa makenete le sesebelisoa sa taolo ea mocheso
Yuniti ea Phetiso ea RF	1	ho kenyeletsoa le phepelo ea motlakase ea tšimo ea modulation
Yuniti ea ho Amohela Matšoao	1	ho kenyeletsoa phepelo ea motlakase ea tšimo e ts'oanang le ponts'o ea mocheso
Thapo ea Matla	1
Cable e fapaneng	12
Methapo ea Sampole	10
Buka ea litaelo	1