At a glance

  • 6Setups
  • X ยท QMicrowave bands
  • 1Control software

EPR spectroscopy endstation

Novosibirsk FEL

A multi-functional setup at the Novosibirsk Free Electron Laser Facility: three X-band EPR machines, pulsed, continuous wave, and time-resolved with a Lotis TII Nd:YAG laser. All three run on Atomize_ITC; the pulsed machine can also tune itself and measure unattended with epr_auto.

  • 8.5โ€“11.5GHz range
  • 300 WSolid-state amplifier
  • 3.2 nsPulse resolution
  • 0.8 nsAWG resolution

Pulsed X-band

  • Pulse gen. / ADC / DACInsys FM214x3GDA: 312.5 MHz TTL, 2.5 GHz ADC, 1.5 GHz DAC
  • Microwave bridgeMicran X-band v2
  • FieldBH15
  • TemperatureLakeshore 335

CW X-band

  • Lock-inStanford Research SR-850
  • Frequency counterAgilent 53131A
  • FieldBH15
  • TemperatureLakeshore 335

Time-resolved X-band

  • LaserLotis TII Nd:YAG
  • OscilloscopesKeysight DSOX3034A, DSOX2012A
  • Frequency counterAgilent 53131A
  • FieldBH15
  • TemperatureLakeshore 335
  • GaussmeterSibir 1 NMR

X-band pulsed EPR

NIOCH
  • 8.5โ€“11.5GHz range
  • 300 WSolid-state amplifier
  • 2 nsPulse resolution

A broadband spectrometer for high-throughput measurements, with a control center built on Atomize: presets for standard experiments, interactive pulse tables with phase cycling and shaped pulses, on-the-fly Fourier transform, and non-uniform sampling.

  • DigitizerSpectrum M4i-4450-x8 PCIe
  • DACSpectrum M4i.6631-x8 PCIe
  • Pulse generatorPulseBlaster ESR-PRO-500 PCI
  • Microwave bridgeMicran X-band
  • OscilloscopeKeysight DSOX3034A
  • FieldBH15
  • TemperatureStanford Research PTC10

Q-band pulsed EPR

NIOCH
  • 33โ€“35.5GHz range
  • 200 WSolid-state amplifier
  • 4 nsPulse resolution

Built on the same control center as the X-band machine, with its own hardware and a 1.25 GS/s DAC for shaped microwave pulses.

  • DACSpectrum M4i.6631-x8 PCIe
  • Pulse generatorMicran PCIe, based on Insys FMC126P
  • Microwave bridgeMicran Q-band
  • OscilloscopeKeysight DSOX3034A
  • FieldHomemade
  • TemperatureLakeshore 335

Cryomech control center

ITC

A standalone application on top of Atomize that runs the closed-cycle helium system: it supervises the compressor, the liquid-helium level and the cold-head temperature, automates the compressor duty cycle, logs every reading, and answers to a Telegram bot for remote monitoring and control.

  • CompressorCryomech CPA1110
  • Helium levelCryomagnetics LM-510
  • Cold headScientific Instruments SCM10
  • TemperatureLakeshore 340, optional
  • MoistureIVG-1/1, optional
Cryomech control center main window