Usoro LADP-1 nke Ule nke CW NMR - Advanceddị Nlereanya
Igwe ihe na-eme magnetik (NMR) bụ ụdị mgbanwe mgbanwe mgbagha nke sitere na ikuku electromagnetic na mpaghara ndọta mgbe niile. Ebe ọ bụ na e mere nchọpụta ndị a na 1946, usoro na usoro nke resonance magnetic resonance (NMR) ka emepụtara ngwa ngwa ma jiri ya mee ihe n'ihi na ha nwere ike banye n'ime ihe ahụ n'emebighị ihe nlele ahụ, ma nwee uru nke ngwa ngwa, izi ezi na elu mkpebi. N'oge a, ha abanyela site na physics ruo kemistri, bayoloji, geology, ọgwụgwọ, akụrụngwa na ọzụzụ ndị ọzọ, na-arụ nnukwu ọrụ na nyocha sayensị na mmepụta.
Nkọwa
Nhọrọ akụkụ: Frequency mita, onwe kwadebere akụkụ oscilloscope
Usoro nnwale a nke na-aga n'ihu na-ebugharị magnetik resonance (CW-NMR) nwere nnukwu ndọta homogeneity yana igwe igwe. A na-eji magnet na-adịgide adịgide iji nye ebe magnetik bụ isi nke electromagnetic na-agbanwe agbanwe, nke a na-emepụta site na eriri abụọ, iji kwe ka mmezi dị mma na mpaghara magnet zuru oke na iji kwụọ ụgwọ ndọta magnet kpatara site na mgbanwe dị iche iche.
Ebe ọ bụ na ọ bụ naanị obere magnetizing dị ugbu a ka ọ dị mkpa maka ala electromagnetic dị ntakịrị, a na-ebelata nsogbu kpo oku nke usoro ahụ. Yabụ, enwere ike rụọ ọrụ sistemụ ahụ ọtụtụ awa. Ọ bụ ezigbo nnwale ngwa ngwa maka ahụike nke ụlọ akwụkwọ physics.
Nkọwa
|
Nkọwa |
Nkọwapụta |
| Ihe ọ̀tụ̀tụ̀ | H na F. |
| SNR | > 46 dB (H-nuclei) |
| Oscillator ugboro | 17 MHz ruo 23 MHz, na-agbanwe agbanwe |
| Mpaghara ndọta | Obosara: 100 mm; Ohere: 20 mm |
| NMR mgbaàmà njupụta (elu na elu) | > 2 V (H-nuclei); > 200 mV (F-nuclei) |
| Nwoke nke ndọta | mma karịa 8 ppm |
| Ọnọdụ mgbanwe nke akpa electromagnetic | 60 Gauss |
| Ọnụọgụ nke ebili mmiri coda | 15 |
Nnwale
1. Iji lelee ihe ọkụkụ nke magnetik resonance (NMR) nke hydrogen nuclei na mmiri ma tụlee mmetụta nke ion paramagnetic;
2. Iji tụọ akụkụ nke hydrogen nuklia na fluorine nuclei, dị ka spin magnetic ratio, Lande g factor, wdg.
