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Experimental System of Nuclear Magnetic Resonance

USA

LEAI-11

0 ~ 8000 Get Latest Price

USA

-

1 Unit

-

4 weeks

10 Unit per Month

T/T

Physics Experiment Apparatus

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タイトルまたは説明

Features:

 

  • 6 easy-to-use liquid samples in micropipette tubes

  • Large resonant amplitude for oscilloscope viewing

  • High homogeneous magnetic field to assure more coda Waves

  • Open magnet structure for easy sample access

  • High SNR & stable frequency

  • One sample contains both H & F nuclei for determining the g-factor of F-nuclei

  • High accuracy milli-teslameter included
     

This experimental system of continuous-wave nuclear magnetic resonance (CW-NMR) consists of a high homogeneity magnet and a main machine unit. A permanent magnet is used to provide a primary magnetic field to which an adjustable electromagnetic field, generated by a pair of coils, is superposed to allow a fine adjustment to the total magnetic field and to compensate magnetic field fluctuations caused by temperature variations. As only small magnetizing current is needed for relatively low electromagnetic field, the heating problem of the system is minimized. Thus, the system can be operated continuously for several hours. It is an ideal experimental instrument for advanced physics laboratories.

 

Using this instrument, the following experiments can be performed:

 

1. Observe NMR phenomenon of H- and F-nuclei.

2. Determine parameters of gyromagnetic ratio, g-factor and nuclear magnetic moment.

3. Observe the influence of magnetic field homogeneity on signal coda wave using different samples.

4. Measure magnetic field, and learn how to calibrate Teslameter through NMR method.

 

Specifications

 

Description Specifications
Types of nuclei H and F
SNR >46 dB (H nucleus)
Oscillator frequency 17 MHz to 23 MHz, continuously adjustable
Area of magnet pole diameter: 100 mm; spacing: 20 mm
NMR signal amplitude (peak to peak) >2 V (H-nuclei); >200 mV (F-nuclei)
Homogeneity of magnetic field better than 8 ppm
Adjustment range of electromagnetic field 60 Gauss
Number of coda waves > 15
Experimental System of Nuclear Magnetic Resonance

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連絡先担当者:Mr. James

会社:Lambda Scientific Systems, Inc.

住所:16300 SW 137th Ave, Miami, Florida, USA,33177

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