Central Asia Cooperative Monitoring Experiment Navruz

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Central Asia Cooperative Monitoring Experiment
Navruz
Institute of Nuclear Physics Uzbek Academy of
Science Tashkent, Uzbekistan Director
-Bekhzad S. Yuldashev Reporters- Raisa I. Radyuk
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Project Manager B.S.Yuldashev
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• CONCEPT
• -Develop Concept of Experiment
• -Sampling and Analysis Plan
• -Sampling
• -Samples Analyzes
• - Record data
• -Analyze data
• -Write reports
• -Analyze complete data
• -Write reports and articles for international
  publications

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Project Supervisor R.I. Radyuk
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Country Points Samples Wd B S
V Kaz 15 44 15
15 14 no Kg 15
35 15 5 15
no Tj 13 39
13 13 13 no Uzb 12
48 12 12 12 12

Water sampling on Chirchik River
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Sampling of bottom sediment. River Syr-Darya,
Chinaz.
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Hydrolab Field Data Collection Log
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Chemical parameters determination using HYDROLAB.
Chirchik River.
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Flow discharge measurements using FLOWMETER.
Chirchik River.
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Salt Concentration/L
g/L
Water specific beta-activity
Bq/L
Syr Darya River
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Salt Concentration/L
g/L
Water specific alpha-activity
Bq/L
Syr Darya River
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g/L
Salt Concentration/L
Water specific beta-activity
Bq/L
Amu Darya River
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g/L
Salt Concentration/L
Water specific alpha-activity
Bq/L
Bq/L
Amu Darya River
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Bq/kg
Bottom sediments specific activity
alpha beta
Soil specific activity
Bq/kg
alpha beta
Syr Darya River
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Bq/kg
Bq/kg
Bq/kg
Bottom sediments specific activity
alpha beta
Soil specific activity
Bq/kg
alpha beta
Amu Darya River
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Alpha and beta radioactivity measurements using
NRR-610. Analyst E.D. Vdovina
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Bq/kg
U-238 Ra-226
U-238 and Ra-226 in bottom sediments
U-238 and Ra-226 in soil
Bq/kg
U-238 Ra-226
Syr Darya River
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Bq/kg
Bq/kg
U-238 and Ra-226 in bottom sediments
U-238 Ra-226
U-238 and Ra-226 in soil
U-238 Ra-226
Bq/kg
Amu Darya River
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Bq/kg
Soil Sediment
K-40 in bottom sediment and soil
Th-232 in bottom sediment and soil
Soil Sediment
Bq/kg
Syr Darya River
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Bq/kg
K-40 in bottom sediment and soil
Soil Sediment
Th-232 in bottom sediment and soil
Bq/kg
Soil Sediment
Amu Darya River
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Bq/kg
alpha beta
RADIOACTIVITY OF VEGETATION UZBEKISTAN
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CONTENT OF SEDIMENT
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Sampling expedition V.S. Vasilieva, A.
Rakhimbayev, E.D. Vdovina, O.A. Smolkova
Water sample preparation. Analyst S.I. Yatsenko
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ACTIVATION ANALYSIS - AN ADDITIONAL TOOL TO
DETERMINE U, Th AND ACCOMPANYING
ELEMENTS Detection of natural and man-made
anomalies Nuclear reactor, HPGe-detector and
computed multichanell analyzer
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Prepared samples were packed into bags of pure
polyethylene foils and irradiated at a neutron
flux of 5.1013 n/cm2.s for 15 s. Immediately
after irradiation, the induced gamma-spectra of
37Cl and 128I were measured. One hour after
irradiation, the induced activities of 24Na,
64Cu, and 56Mn were determined. One week later
the samples were repacked in pure aluminum foil
and irradiated at the same flux for 15 h. A week
later, gamma-ray spectrometry was used to
determine Ca, Br, La, Au, and U. One month later
Sc, Cr, Fe, Co, Zn, Se, Ba, Cs, Sr, Eu, Rb, Ag,
Sb Hg, Th concentrations were determined.
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Standard samples were made by placing a known
amount of element solutions on strips of ashless
paper. At the same time, a laboratory reference
material was prepared. The quality of standards
and that of the laboratory reference material
were evaluated by analyzing IAEA Standard
Reference Materials.
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NEUTRON ACTIVATION ANALYSIS TEAM
L.I. ZHUK
A.A. KIST
E.A. DANILOVA
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mg/L
AUTUMN SPRING
Aral-Sea Mountains
Water dissolved Na. Syr Darya.
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mg/kg
NO SAMPLES
Mountains
Aral-Sea
Th IN BOTTOM SEDIMENT. SYR DARYA, AUTUMN
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Besides high U and Th in some cases significantly
elevated Cr, Sb, Cs
EXPERIMENT IS CONTINUING
Deputy Director U.S. Salikhbayev
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CORDIAL THANKS TO CMC AND DOE FOR ARRANGEMENT,
SUPPORT AND SUPERVISING OF THIS EXTREMELY
IMPORTANT FOR CENTRAL ASIA EXPERIMENT