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PURPOSE
Quantitave and qualitative analysis of samples for gamma-emitting radionuclides
APPLICATION
- At radiological laboratories of the State Sanitary and Epidemiological Inspection,
forest industry, veterinary and agricultural services for controlling the
quality of edible raw materials and foodstuffs, forest industry products,
livestock farming products, soils, building materials.
- At nuclear physics centres for research in various fields of fundamental
and applied physics
- At radiochemical laboratories of factories for controlling production processes
- At laboratories of external radiation control departments of factories for
controlling environmental objects
COMPONENTS
- 63 x 63 single-crystal NaI(Tl) scintillator detecting unit BDS-G with a
built-in amplifier, a high-voltage converter, a system for stabilization by
the reference peak of the light-emitting diode, and temperature compensation
of the conversion characteristic *
- Spectrometric amplitude-to-digital converter circuit board ADC-1K-W1, IBM
PC standard, with a buffer memory, a live/real timer, and a PCI interface
bus
- Lead protection screen Ekran-1SG (floor type)
- IBM PC with a printer
- Applied software for Windows LSRM2000
OPERATION
- Measurement of spectra with live-time and real-time exposures **
- Energy, peak-shape, and detection-efficiency calibration
- Automatic storage and processing of spectra, including identification of
radionuclides, and saving of the spectra and their processing results on any
information carriers
- Visualization of spectra and processing results on the display
- Printing of the spectrum and results of its processing in the required form
The spectrometer has the following options:
- Th-232 based test source for calibration and performance check of spectrometric system gamma channel
- 1 liter Marinelly vessels
- Set of equipment based on activated charcoal for comprehensive monitoring of radon in working conditions, houses and environment with the LSRM software on the basis of techniques developed by STC NITON and used for mass measurements of:- average for 1-6 days volumetric radon activity in the air
- volumetric activity of radon in air samples
- density of radon flux from the earth surface, mining and structural units
- volumetric activity of radium and radon in natural waters
NOTES
* Upon request, a UDS-G63x63 – USB assembly with a built-in ADC and an USB interface can be supplied instead of the ADC-1K-W1 and the BDS-G
** The standard Gamma-1S spectrometer is efficiency calibrated for operation in two geometries (1-liter Marinelli vessel and 0.12-liter
Denta vessel) with sample density ranging from 0.2 to 2 g/cm3. New calibrations can be added by the user to operate
with other geometries and sample densities.
BASIC TECHNICAL DATA
| Detectable energies, MeV |
0,05 - 3 |
| Number of channels |
1024 |
| Relative energy resolution for the 661-keV line (137Cs), % |
8 |
| Integral nonlinearity , % |
±1 |
| Operating temperature, oС |
10÷ 35 |
| Power consumption, 220 V, 50 Hz, VA |
250 |
| Time instability, % |
1 |
| Maximal input statistic load, s-1 |
50000 |
OVERALL DIMENSIONS AND WEIGHT
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Lead protection screen
(lead thickness – 50 mm) |
Detecting unit BDS-G |
PC with ADC board, printer |
| Overall dimensions |
700 х 700 х 730 мм |
Ø88 x 315 мм |
Depending on the model |
Weight |
172 кг |
1,4 кг |
CERTIFICATES
The spectrometer is enrolled in the State Register of Measuring Devices under
No 15294 № 15294 - 96
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