LADP-1A Nidaamka Tijaabada ee CW NMR - Sawirka Qaabka Sarreeyey

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 birlab ah oo joogto ah. Tan iyo markii daraasaddan la sameeyay 1946, hababka iyo farsamooyinka nukliyeerka magnetic resonance (NMR) si degdeg ah ayaa loo sameeyay oo si ballaaran loo isticmaalay sababtoo ah waxay si qoto dheer u geli karaan walaxda iyaga oo aan burburin muunada, waxayna leeyihiin faa'iidooyinka degdegga ah, saxnaanta iyo xallinta sare. Maalmahan, waxay ka soo gudbeen fiisigiska ilaa kimistari, bayoloji, geology, daawaynta, agabka iyo qaybaha kale, iyaga oo door wayn ka qaadanaya cilmi baadhista iyo wax soo saarka.

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Sharaxaada

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

Nidaamkan tijaabada ah ee mawjada magnetka ee joogtada ah ee nukliyeerka (CW-NMR) wuxuu ka kooban yahay magnet isku-dhafan oo sarreeya iyo cutubka mashiinka ugu muhiimsan. Magnet joogto ah ayaa loo istcmaalay in lagu bixiyo goob birlabeedka aasaasiga ah oo ay ku sarreyso goob korantada 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 duwanaanta 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 shaybaarrada fiisigiska horumarsan.

Tijaabi

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

2. Si loo cabbiro halbeegyada nuclei hydrogen iyo nuclei fluorine, sida saamiga magnetka spin, Lande g factor, 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