POLISHVERSION


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E Q U I P M E N T

 Fourier transform nuclear quadrupole resonance (FT NQR) spectrometer
  • Frequency range: 20-40 MHz (important nuclei giving the NQR spectra in this range are Cl35 and Cu63)
  • Sample temperature control from 77 to 400 K with 0.1 K accuracy
  • Manual control of the measurement, computerized data acquisition and processing system
  • Allows the measurements of temperature dependencies of frequencies and line widths of NQR spectra and quadrupolar relaxation times T1 and T2 in solids.
  Fourier transform pulsed nuclear quadrupole resonance spectrometer (FT NQR) type NQS 300
  • Frequency range: 1.5-300 MHz (examples of important nuclei giving the NQR spectra in this range are N14, Cl35and Cu63)
  • Sample temperature control from 77 up to 400 K with 0.1 K accuracy
  • RF pulse amplitude stabilization circuit
  • Computer automated control system making possible the programming of complex measurement routines by means of the macro command language.
  • Allows the measurements of temperature dependencies of frequencies and line widths of NQR spectra, quadrupolar relaxation times T1 and T2 and the asymmetry parameter of EFG tensors in solids.
  • Special software package enables the usage of the method of NQR nutation spectroscopy for measurement of the asymmetry parameters of EFG tenors in solids.
  • Software package dedicated for precise recording of very broad NQR spectra by Fourier transform spin echo mapping method
  Fourier transform pulsed nuclear quadrupole double resonance spectrometer (FT NQR/NMR)
  • Frequency range in pure NQR mode: 0.5-120 MHz (some examples of important nuclei giving the NQR spectra in this range are: N14, Cl35 and Cu63)
  • Sample temperature control: 77-400 K with 0.1 K accuracy
  • RF pulse amplitude stabilization circuit
  • Computer automated control system making possible the programming of complex measurement routines by means of the macro command language.
  • Magnetic goniometer (three-axis Helmholtz coils) for making measurements of Zeeman effect in NQR spectra
  • Allows the measurements of temperature dependencies of frequencies and line widths of NQR spectra, quadrupolar relaxation times T1 and T2 and the asymmetry parameter of EFG tensors in solids
  • Special software package enables the usage of the method of NQR nutation spectroscopy for zero-field measurement of the asymmetry parameters of EFG tenors in solids.
  • Software package dedicated for precise recording of very broad NQR spectra by Fourier transform spin echo mapping method
  • Double resonance probe head with mechanical sample transfer system (in less than 0.1s) for studies of the low-frequency NQR spectra in the range 0.01 to 6 MHz.
  • Possible option of remote control of the spectrometer through the Internet
  Nuclear quadrupole double resonance (NQDR) spectrometer type NQDRS 1
  • Frequency range of the NQDR spectra: 0.01-10 MHz
  • Enables enhanced resolution of NQDR spectra by using the fast frequency sweeps method
  • Pneumatic device for sample transfer from/to the high magnetic field area
  • NMR frequency of protons: 40 MHz
  • Full computer automated control system with GUI software running under Windows 95 for data acquisition and processing
  • Sample temperature control in the 120-300 K range with 1 K accuracy.
  The prototype device for the detection of plastic explosives in luggage by means of nitrogen-14 nuclear quadrupole resonance
  • Explosives detected: RDX, HMX and PETN
  • Minimum detection time: 100 g RDX in 30 sek (detection probability > 90%)
  • Full automation of the detection process by a PC controlled 14N-FT NQR spectrometer
  • The usage of the device as a high performance research 14N-NQR spectrometer operating in the frequency range 0.5-10 MHz is possible
  A prototype device for the detection of non-metallic landmines by means of nitrogen-14 nuclear quadrupole resonance (under construction)

 

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Last modified:   18.06.2003