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LADP-1A Nidaamka Tijaabada ee CW NMR - Qaabka Sare

Sharaxaad Gaaban:

Nuclear Magnetic resonance (NMR) waa nooc ka mid ah ifafaale kala-guurka dhawaaqa oo ay keento hirarka korantada ee goob birlabeed joogto ah.Tan iyo markii daraasaddan la sameeyay 1946, hababka iyo farsamooyinka nukliyeerka magnetic resonance (NMR) si degdeg ah ayaa loo horumariyay oo si ballaaran loo isticmaalay sababtoo ah waxay si qoto dheer u geli karaan walaxda iyaga oo aan baabi'in muunada, waxayna leeyihiin faa'iidooyinka degdegga ah, saxnaanta iyo sare. xallinta.Maalmahan, waxay ka soo gudbeen cilmiga fiisigiska ilaa kimistari, bayoloji, geology, daawaynta, agabka iyo qaybaha kale, iyaga oo door wayn ku leh cilmi baadhista iyo wax soo saarka.


Faahfaahinta Alaabta

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Sharaxaada

Qaybta ikhtiyaariga ah: Mitirka soo noqnoqda, qayb is-diyaar ah oscilloscope

Nidaamkan tijaabada ah ee mawjadaha magnetka ee joogtada ah ee nukliyeerka (CW-NMR) wuxuu ka kooban yahay magnet isku mid ah oo sarreeya iyo cutubka mashiinka ugu muhiimsan.Magnet joogto ah ayaa loo isticmaalaa in lagu bixiyo goob birlabeedka aasaasiga ah oo ay ku kor sarreyso goob koronto oo la hagaajin karo, oo ay abuureen labo gariirood, si loogu oggolaado hagaajinta guud ee goobta magnetka iyo in loo magdhabo isbedbedelka goobta magnetic ee ay sababto kala duwanaanshaha heerkulka.

Sababtoo ah kaliya magnetizing yar oo hadda ah ayaa loo baahan yahay goobta korantada ee aadka u hooseeya, dhibaatada kuleylka nidaamka waa la yareeyaa.Markaa, nidaamka waxa uu si joogto ah u shaqayn karaa dhawr saacadood.Waa qalab tijaabo ah oo ku habboon shaybaarada fiisigiska ee horumarsan.

Tijaabi

1. Si loo ilaaliyo ifafaale resonance magnetka nukliyeerka (NMR) ee hydrogen nuclei ee biyaha iyo isbarbardhigga saameynta ions paramagnetic;

2. Si loo cabbiro halbeegyada nuclei-yada hydrogen-ka iyo nuclei-yada fluorine, sida saamiga magnet-ka spin, factor Lande g, iwm.

Tilmaamaha

Sharaxaada

Tilmaamid

Xudunta la cabbiray H iyo F
SNR > 46 dB (H-nuklei)
Inta jeer ee Oscillator 17 MHz ilaa 23 MHz, si joogto ah loo hagaajin karo
Meesha tiirka magnetka Dhexroorka: 100 mm;fogaanta: 20 mm
Baaxadda calaamadda NMR (ugu sarreysa ilaa ugu sarreysa) > 2 V (H-nuklei);> 200 mV (F-nuklei)
Homogeneity of magnetic field ka fiican 8 ppm
Baaxadda hagaajinta ee goobta korantada 60 Gaas
Tirada mowjadaha coda > 15

 

 


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