Ascend superconducting magnet system:
- Designed with active protection technology to allow computers or other sensitive devices to operate near magnetic magnets, reduce Magnetic field deviation, 5G limit line calculated from the magnet center: vertically <0, 6 m, horizontal <1.2 m.
- Magnetic field work 9.39 Tesla (1H NMR resonant frequency is 400MHz).
- There is cryoshim function in function z, z2, z3, x, y, xz, yz, xy, x2-y2, load and rotate the model with compressed air.
- Drift <5 Hz / hr, liquid helium evaporation maximum 12.8 ml / hr, helium holding time of at least 150 days
- Liquid helium ink meter and alarm function when He level liquid low.
- Magnet base has vibration protection to reduce noise
SHIM system and lock (LOCK):
BSMS / 2 smart magnet control system
Us Shim BOSS I
- Orthogonal structure, operating room temperature
- Design with 20 gradients to compensate and optimize to create a uniform field
- Shim control panel (SCB) with super high stability, low noise shim source, small current consumption and low heat output.
Intelligent magnetic control board (BSMS)
- For shim control, lock and numeric lock control, including:
+ Create digital lock frequency, variable frequency for operation at fixed magnetic fields can choose
+ Digitally angled key collection receiver
+ Quick field correction with hold-and-sampling circuit
Shim control board (SCB)
- With extremely high stability, low noise shim source
Radio frequency (RF) generation system, numerical control and data acquisition
- Intelligent pulse generation system: Timing control with the highest accuracy for accuracy (absolute) absolute time, resolution time ≤12,5 ns.
Wide band pulse and frequency generation system for 2 channels
- Create chain pulse for 2 channels
- Signal generator (SGU) for channel 1, frequency range from 6 - 440 MHz
- Signal generator (SGU) for channel 2, frequency range from 6 - 440 MHz
- Synthesis of digitized frequencies by 2 corresponding signal generators (SGU)
- Digitizing phase (DDS), exact amplitude and frequency
+ Phase resolution <0.010.
+ Resolution frequency <0.005 Hz.
+ Time interval for changing phase, frequency, amplitude: 25 ns
- Cover the entire NMR frequency range in a defined magnetic field above 6 MHz
- 8 MB gun memory to create pulse shape for frequency, amplitude and phase
- Synthetic pulse pair generator for synchronous and asynchronous operation
- Allows to create 2 independent frequencies with separate phases and amplitudes within the bandwidth of 2.5 MHZ with each SGU (channel)
Controller for digitized receiver for NMR
- Obtain data with real-time and over-digital filter (oversampling) with large bandwidth up to 5 MHz
- Maximum dynamic range: 22-bit
- Fast RISC processor with caching ensures real-time data management
High-performance digitizer
- For high-quality data collection and very flexible at optimal digitization kinetic range to> 22 bits at 6 kHz spectrum width, and with bandwidth up to 5 MHz
Digitized quadrature receiver
- To completely eliminate the quadruple vertices (quad-spikes), artefact at the center of the spectrum
LAN NMR network is based on fast Ethernet link
- Directly connect the host computer and the main parts of the universal system