Low-Level Measurements Lab

 

The lab supervisors focus mainly on measuring light air ion concentrations in caves for the purposes of therapeutic speleotherapy and cave airflow research. These measurements are unique in their implementation and build on the long experience of UTEE staff.

In addition to these field measurements, the laboratory facilitates precise high-impedance and noise measurements for materials research.

Room: SC3.62

Main activities

  • Measuring the in- and outdoor concentration and motion of air ions
  • Special long-term measurements of radon; meteorological quantities; and CO2 in spaces characterized by 100% relative humidity (such as caves and mines)
  • Freezing potential measurement and custom development of unique devices or tools for chemistry and physics
  • Laboratory-based and industrial measurement of very low and high impedances
  • Developing novel NQR measurement methods

Laboratory equipment

  • Electrometer that combines a picoammeter, 3 fA-20 mA, a coulometer, and a HV excitation source
  • HV source (2 kV) for photomultipliers
  • Experimental NQR station
  • Devices for low-level signal generation and sensing
  • Controlled HV current-limiting source
  • Low temperature measurement chamber (200x200x100 mm) and tools
  • Ionmeter: a Gerdien tube to enable air ion measurement
Responsible person