Purpose:
• measurement of gross activity of alpha-emitting radionuclides in thick and thin samples;
• measurement of activity of beta-emitting radionuclides in samples of foodstuffs, soil, water, as well as of filters and samples prepared by the selective radiochemical extraction;
• measurement of activity of alpha-emitting radionuclides in samples prepared by the selective radiochemical extraction (relative procedures are necessary).
Features:
• simultaneous measurement of alpha/beta activities in the sample;
• available options for surface area of the installed detector: 450, 600 or 1000 mm2;
• active anti-coincidence background substraction using gas discharge detectors (GM tubes);
• passive lead shielding from background gamma radiation;
• protection from power line disturbances;
• timer and two channels (alpha, beta) for separate counting of pulses from the detector;
• spectrometric output (after preamplifier);
• connection to computer via RS-232 interface;
• basic software for UMF-2000;
• measurement of Po-210 and Pb-210 in soil and water samples;
• SpectraDec software expands the UMF-2000 functionality with alpha-spectrometric measurements of U, Th, Po, Pu, Am isotopes (after preparation of samples using radiochemical techniques).
Basic complete set:
• radiometer “UMF-2000”;
•software “UMF-2000” (for Windows XP) offers a convenient way to work with UMF-2000 using personal computer. Newer versions of the software are available on www.doza.ru;
• null-modem cable;
• planchet – 10 items;
• check source;
• passport and operation manual;
• primary calibration certificate.
Optional equipment and service:
• reference sources;
• additional planchets;
• computer and printer;
• SpectraDec software for alpha-spectrometric measurements of U, Th, Po, Pu, Am isotopes in samples prepared by radiochemical techniques;
• spectrometric ADC card;
• procedures for sample preparation.
Procedures for sample preparation:
• Recommendation “Gross activity of alpha and beta emitting radionuclides in natural (fresh and mineral) waters. Sample preparation and performing measurement”
• Measurement procedures for determination of specific activity of Ро-210, Pb-210, Pu-239, Pu-242, Pu-236, Pu-238, Am-241, Am-243, U-238, U-234, U-235, Th-232, Th-230, Th-228 in different media (detailed information see in “Measurement procedures” section).
Technical Specifications:
Detector type |
semiconductor silicon detector |
Detector surface area |
450, 600, 1000 mm2 |
Range of measured activity: |
|
- alpha emitting radionuclides
|
0,01 – 1000 Bq |
- beta emitting radionuclides
|
0,1 – 3000 Bq |
Energy range: |
|
|
3500 – 8000 keV |
|
50 – 3500 keV |
Relative measurement error |
±15% |
Background count rate (detector surface area 450 mm2): |
|
|
no more than 0,001 s-1 |
|
no more than 0,03 s-1 |
Count intervals: |
|
|
1 – 9999 s |
|
up to 64535 s |
Error of count intervals |
no more than 0,0001 s |
Thickness of lead shielding |
30 mm |
Power supply |
220 (+10/-15%) V/50±1 Hz |
Dimensions |
337×286×190 mm |
Weight |
22 kg |
Norms, certificates, patents, licences