MRI Spectrometer, modelo MicroMR

MRI Spectrometer, model MicroMR

Introduction

The MicroMR is a research system for the analysis and images of medium sized samples. Typical applications include the scientific research of materials, food, medicine and rock core analysis a well as images of solid samples. As a high level instrument, the MicroMR offers excellent quality like all of Niumag products, including advanced details and a confortable design for the user.

Characteristics

• Operating system based on Windows. Operating frequency and 90º and 180º pulse widths can be adjusted automatically.
• The spectrometer is controlled by a professional industrial computer which gives greater stability.
• The independant spectrometer NMdigI assures the high stability and powerful functions of the MicroMR.
• The MicroMR, that can be used for human images, includes PSG, DDS, DAC and ADC. It also offers multi-slicing and not only can it produce normal images in 2D/3D, but also it can realise 2D multi-slice images pero también puede realizar imágenes multi-cortes (multi-slice) de 2D at random angles.
• Imaging function in 3D, and a function for the reconstruction of the image.
• Large oriental magnet that assures repeatability and fidelity of the system.
• The MRI software is open, and the users interface easy to operate adjustable parameters, that can get and save the original data from the K space and interchange manually the K space for the FFT .
• High power RF amplifierwith peak output value > 100W.
• Powerful inversion multi-exponent software de i is optional and that manage experiments T1/T2/T2* correctly analysing the relaxation times and relationships in a sample.
• In the CPMG pulse sequence, the number of the largest peak in the echo wave can reach 20000, and the largest number for the sampling data is 1 million, the shortest time for the echo is 160us, then the T2 time can be measured in the range of 80us to 14s.
• The NMR method is not destructive allowing for the total recovery of the sample.
• The operation is friendly and easy. In most cases the sample will not need preparation and in some cases very little preparation will be required.
• The search function for data is also confortable and easy, the huge database has the following functions, classify, compare, count and the resulting data can be exported to Excel for its processing.
• Good fidelity, the standard deviation does not exceed 0,5% in 50 days.
• The quality of the images of small samples is excellent, the edges of the images are clear and the contrast is adjustable using gradients.
• The instrumentation and the software can be developed according to customer requirements.
• There are available advanced accessories like the variable temperature and the variable pressure system.

Specifications

• Magnet: Permanent magnet 0.51Tesla (Resonant frequency H^{1 of 21.7MHz.)}
• RF field: Frequency range of the RF pulses: 1MHz - 30MHz.
• Magnet temperature control: precision ± 0.02ºC in a range from 28ºC - 35ºC, typically 32ºC.
• Pole diameter: 270mm, and the space between poles: 45mm.
• Homogeneity of the magnetic field: 10.0ppm (10mm × 10mm × 10mm), manetic field stability: < 200Hz/hour.
• The spectrometer includes PSG, DDS,DAC y ADC.
• Digital receiver with 16 bit sampling rate.
• Digital frequency source, direct output of the required pulse wave..
• Advanced instrumentation combined with pulse sequence programs can result in the realization of complicated experiments.
• DDS adjustment range: 1 - 30MHz, can offer soft pulses with adjustment of their amplitude and width.
• Peak value output of the RF Amplifier: 20W, linear :99.7%
• RF Precision: 0.01Hz.
• Receiver > 40dB, maximum width sampling: > 300MHz.
• Transmission / Reception type for the signal: Digital quadrature detection.
• Peak value of the Gradient amplifier can exceed 3 gauss/cm in X/Y/Z three directions
• In the CPMG pulse sequence, the number of the largest peak in the echo wave can reach 20000, and the largest number for the sampling data is 1 million, the shortest time for the echo is 160us, then the T2 time can be measured in the range of 80us to 14s.
• Probe diameter: 25mm (standard), optional diameters include: 18mm, 15mm, 10mm and 5mm.
• Effective sample detection range: 25mm diameter x 30mm height.
• Image quality (sample in 25mm diameter tube): image linearity (directions x/y/z) > 90%, space resolution: 0.10mm.
• Spectrometer controlled by a professional industrial computer using Windows as the operating system. CPU: dual core, DDR Memory: 2Gb, Hard disk: 250Gb, Optical Controller: DVD_R/W.

Applications

Images of small animals, research in reology, seeds R & D, porous materials R & D

Changing moisture content


Images of drying stages of meat


Images of porous material

For prices or addional information of the MRI Spectrometer, model MicroMR, from Niumag, please call us at
+34 91 355 58 03 or send us an e-mail to :