A low frequency (0.5–5 MHz) battery operated sensitive pulsed NQR spectrometer with a transmitter power up to 5 W and a total mass of about 3 kg aimed at detecting 14N NQR signals, predominantly of illicit materials, was designed and assembled. This spectrometer uses a standard software defined radio (SDR) platform for the data acquisition unit. Signal processing is done with the LabView Virtual instrument on a personal computer. We successfully tested the spectrometer by measuring 14N NQR signals from aminotetrazole monohydrate (ATMH), potassium nitrate (PN), paracetamol (PCM) and trinitrotoluene (TNT). Such a spectrometer is a feasible component of a portable single or multichannel 14N NQR based detection device.
F.08 Development and manufacture of a prototype
COBISS.SI-ID: 10726228A member of the programme group, dr. P. Cotič, completed her PhD in 2014 (supervisor Z. Jagličić). The topic of her research was non destructive imaging methods in civil engineering.
D.09 Tutoring for postgraduate students
COBISS.SI-ID: 6614113A leader of programme group is an co-author of a university textbook: Fundamentals of Building Physics.
D.10 Educational activities
COBISS.SI-ID: 271577856Members of the programme group are managing the CMag laboratory that bind several leading Slovenian institutions in the field of solid state physics. Experimental work in the lab is ongoing 24 h per day.
D.07 Presiding over a centre/laboratory
Physics student Nejc Duh under the co-supervision of Prof. Zidanšek and supervision of Dr. Repnik designed and manufactured a device, in which the impact of radiation and convection is negligible. The device consists of two separate air chambers with the test object between them. The temperatures of the chambers are regulated via water filled copper coils. Thermal conductivity is determined from the measured mass fluxes of water, difference between the temperature of water flowing into the chamber and water flowing out of the chamber and difference between the air temperature in chamber with high temperature and chamber with low temperature.
D.10 Educational activities
COBISS.SI-ID: 20886280