Project details


Digitální spektrometrický systém jaderného záření (Spektrum)

Project Identification:TA01011383/2011
Project Period:1/2011 - 12/2014
Investor:link to a new windowTechnology Agency of the Czech Republic
Programme / Project Type:ALFA - Program na podporu aplikovaného výzkumu a experimentálního vývoje -
MU Faculty/Unit:
Faculty of Informatics
MU Investigator:Prof. Ing. Václav Přenosil, CSc.
Project Team Member:RNDr. Moslem Amiri, Ph.D.
Prof. RNDr. František Cvachovec, CSc.
Mgr. Jiří Cvachovec
Prof. Ing. Jaroslav Čechák, Ph.D.
Assoc. Prof. Ing. Pavel Čeleda, Ph.D.
Ing. Štěpán Friedl
Prof. Ing. Karel Hájek, CSc.
Prof. RNDr. Jan Chvalina, DrSc.
Assoc. Prof. RNDr. Jiří Jevický, CSc.
RNDr. Zdeněk Matěj, Ph.D.
Ing. Jiří Novotný
Zdeněk Vacek
Cooperating Organization:
link to a new windowVF, a.s.
Responsible Person:RNDr. Zdeněk Kopecký, Ph.D.
Project Website:

The aim of the project is to deliver a functional sample of a configurable digital spectrometric system of nuclear radiation. The main results will be substantial reduction in size, weight, and power consumption of the spectrometric system compared with the current analog sets used for measuring neutron and gamma spectra in mixed radiation fields. The digitizing of output pulses from the detector will enable on-line (during measurement) or off-line (after measurement) processing of carried information. The design makes use of the digitized rising part of the pulses generated by detectors using organic scintillators stilbene or NE-213, or proportional counters. The neutron-gamma discrimination may be reached according to the rise time of the output pulse. This requires digitizing with high sampling rate over 1 GHz with sufficient dynamic range of amplitudes. The current development in digital technology - fast A/D converters, programmable gateway arrays (FPGA), and signal processors (DSP) - offer the possibility (in addition to the above mentioned parameters) to substantially increase the usability features of spectrometric systems (e.g. discrimination of some part of piled-up pulses) and also reduction in measurement time and in capital expenditures (CAPEX) and operational expenditure (OPEX) of the spectrometric systems.