LADP-1 Yekuongorora System yeCW NMR - Yepamberi Muenzaniso
Nyukireya magineti resonance (NMR) rudzi rwekuchinja kwechiitiko chinokonzerwa nemagetsi emagetsi mune anogara ari magineti. Sezvo izvi zvidzidzo zvakaitwa muna 1946, nzira nemaitiro enyukireya magnetic resonance (NMR) akagadzirwa nekukurumidza uye akashandiswa zvakanyanya nekuti anogona kupinda mukati mechinhu pasina kuparadza sampuro, uye aine zvakanakira kukurumidza, kurongeka uye kumusoro chisarudzo. Mazuva ano, vakapinda kubva kufizikiki kuenda kumakemikari, bhayoroji, geology, kurapwa, zvigadzirwa nezvimwe zvidzidzo, vachitamba chinzvimbo chakakura mukutsvaga kwesainzi uye kugadzirwa.
Tsananguro
Inesarudzo chikamu: Frequency mita, yega yakagadzirirwa chikamu oscilloscope
Iyi yekuyedza sisitimu yekuenderera-wave yenyukireya magnetic resonance (CW-NMR) ine yakakura homogeneity magineti uye chikuru muchina unit. A rinogara magineti rinoshandiswa kupa chikuru remagineti munda superimposed kubudikidza chinjika remagetsi munda, kunotangira vaviri vaviri coils, kubvumira yakanaka kugadziridzwa zvachose magineti munda uye muripo remagineti kusanduka kuchinja kunokonzerwa tembiricha misiyano.
Nekuti kungoita mashoma magnetizing azvino anodikanwa kune yakaderera magetsi magetsi, iro dambudziko rekudziya reiyo sisitimu rinoderedzwa. Nekudaro, iyo sisitimu inogona kuvhiyiwa ichienderera kwemaawa akati wandei. Icho chimbo chakaringana chekuyedza chemalabhoritari epamusoro efizikiki.
Magadzirirwo
|
Tsananguro |
Tsanangudzo |
| Yakayerwa nucleus | H naF |
| SNR | > 46 dB (H-nuclei) |
| Oscillator frequency | 17 MHz kusvika 23 MHz, ichienderera ichigadziriswa |
| Nzvimbo yemagineti pole | Dhayamita: 100 mm; nzvimbo: 20 mm |
| NMR chiratidzo amplitude (pakakwirira kusvika pakakwirira) | > 2 V (H-nuclei); > 200 mV (F-nuclei) |
| Homogeneity yemagineti munda | zvirinani kupfuura 8 ppm |
| Kugadziridza huwandu hwesimba remagetsi emagetsi | 60 Gauss |
| Nhamba yemafungu ekoda | > 15 |
Kuedza
1. Kucherechedza nyukireya magnetic resonance (NMR) chiitiko chehydrogen nuclei mumvura uye nekuenzanisa simba repamagnetic ions;
2. Kuyera ma parameter ehydrogen nuclei uye fluorine nuclei, senge spin magnetic ratio, Lande g factor, nezvimwe.
