Instruments for NPP's STPK-01 spectrometric complex

STPK-01-Spectrometric-Complex

The spectrometric complex STPK-01 for maintenance of the discrete – continuous operative control of specific activity of iodine radio-nuclides (131J-135J) in a wide range of values of the coolant in the basic (first) circuit of the nuclear reactor VVER-1000

PURPOSE

The spectrometric complex STPK-01 is intended for maintenance of the discrete - continuous operative control of specific activity of iodine radio-nuclides (131J-135J) in a wide range of values of the coolant in the basic (first) circuit of the nuclear reactor VVER-1000, and also periodic control of specific activity of a number of  reference radio-nuclides important for an estimation of a technological condition of the coolant in the first circuit by means of gamma-spectrometry of high resolution.

STRUCTURE



CHARACTERISTICS
Dimension of ADC, of channels 8192
Output of analysis results not less, than 1 time per hour
Range of registered energies of the γ-emision, Kve 60-3000
Registered nuclides 131I, 135I, 24Na, 42K, 40K и  208Tl
Resolution of the spectrometer 0,9 Kev for 122 Kev
Duration of the exposition Adjustable parameter
Error of determination 131÷135I, not more, % 20
Cooling of semi-conducting block of detecting Is realized by the electric machine coolant.
Alternation changing of positions of the collimator Automatic
STPK-01 works uninterruptedly -


FEATURES