LADP-2 Pūnaha Whakamātautau o Pulsed NMR Atahanga Whakaatu

LADP-2 Pūnaha Whakamatau mo te Pulsed NMR

Whakaahuatanga Poto:

Ko te Pulsed Fourier e huri ana i te resonance autō karihi e whakamahi ana i te mara RF puhoi ki te mahi i runga i te punaha karihi ki te mataki i te urupare a te punaha karihi ki te pupuhi, me te whakamahi i te hangarau tere Fourier transform (FFT) ki te huri i te tohu rohe wa ki te tohu rohe auau, ara. e rite ana ki te maha o te auau kotahi te ngaru haere tonu o te ngaru i te wa ano ka hikaka i te wa ano, na reira ka kitea te ahuatanga o te resonance autō karihi i roto i te awhe nui, a ka pumau te tohu I tenei wa, ka whakamahia te tikanga pupuhi i roto i te nuinga o nga tohutoro NMR. whakamahia te tikanga pulse i roto i te MRI.

Tukuna he imeera ki a matou

Taipitopito Hua

Tohu Hua

Nga whakamatautau

1. Ka mohio ki te ariā tinana taketake me te whirihoranga whakamatautau o te punaha PNMR.Ako ki te whakamaarama i nga ahuatanga tinana e pa ana ki te PNMR ma te whakamahi i te tauira vector puāwaitanga.

2. Ako ki te whakamahi i nga tohu o te paoro hurihuri (SE) me te pirau induction free (FID) ki te ine i te T₂(te wa whakangawari hurihuri).Te tātari i te awe o te taurite o te papa autō ki te tohu NMR.

3. Ako ki te ine i te T₁(te wa whakangao miro-maamaa) ma te whakamahi i te whakaora whakamuri.

4. Kia mohio ki te tikanga whakangao, tirohia te paanga o nga katote paramagnetic ki te wa whakangao karihi.

5. Ine T₂o te wairewa konukura pūkawa ngāwha i ngā kukū rerekē.Whakatauhia te hononga o T₂me te huringa o te kukū.

6. Inehia te nekehanga matū o te tauira.

Whakatakotoranga

Whakaahuatanga	Whakatakotoranga
Te tuku hiko o te mara whakarereke	mōrahi o nāianei 0.5 A, ture ngaohiko 0 – 6.00 V
Power supply o mara ōrite	mōrahi o nāianei 0.5 A, ture ngaohiko 0 – 6.00 V
auau oscillator	20 MHz
Te kaha o te mara aukume	0.470 T
Te diameter pou aukume	100 mm
Te tawhiti pou aukume	20 mm
He riterite mara aukume	20 ppm (10 mm × 10 mm × 10 mm)
Te pāmahana whakahaere	36.500 °C
Pumautanga papa aukume	E 4 haora te whakamahana kia whakapumautia, ka heke te auau Larmor iti iho i te 5 Hz ia meneti.

Rarangi Wahi

Whakaahuatanga	Qty	Tuhipoka
Wae Maamaa Tonu	1	tae atu ki te aukume me te taputapu whakahaere pāmahana
Waeine Whakawhiti RF	1	tae atu ki te tuku mana o te mara modulation
Waeine Whakawhiwhi Tohu	1	tae atu ki te tuku mana o te mara homogenous me te whakaaturanga pāmahana
Waea hiko	1
Tauera rereke	12
Ngongo Tauira	10
Pukapuka Whakaako	1