RadChem 2014

Session

Nuclear Analytical Methods 4

NAM-4

15 May 2014, 10:30

Casino Conference Centre

Conveners

Nuclear Analytical Methods 4

• Marina Frontasyeva (Joint Institute for Nuclear Research)
• Rick Paul (NIST)

15. Direct Analysis of Americium in Non-Separated Spent Nuclear Fuel Using High Resolution ICP-OES and Sector Field ICP-MS

Dr Michael Krachler (European Commission, Joint Research Centre, Institute for Transuranium Elements)

15/05/2014, 10:30

Nuclear Analytical Methods

Verbal

Complementary analysis employing instrumental techniques based on different physical detection principles is a key issue for quality assurance. Lacking matrix-matched certified reference materials, accurate, straightforward analytical procedures for the determination of americium (Am) in non-separated spent fuel employing high resolution ICP-OES and sector field ICP-MS were developed and...

57. Determination of the 143Nd/144Nd isotope ratio in various types of uranium samples – a new possible signature for the origin assessment in nuclear forensics

Ms Judit Krajkó (JRC - Institute for Transuranium Elements)

15/05/2014, 10:45

Nuclear Analytical Methods

Verbal

The 143Nd/144Nd isotope ratio varies (0.510-0.513) in nature due to the 147Sm / 143Nd decay. Its value depends on the type of the minerals present and therefore it is widely used in geology for chronometry and provenance measurements with the ε notation. The measurement of 143Nd/144Nd isotope ratio in uranium samples is analytically challenging as the distribution of Nd concentration through...

289. Determination of 93Zr, 237Np and 135Cs in radioactive waste by inductively coupled plasma mass spectrometry

Ms Nora Vajda (RadAnal Ltd.)

15/05/2014, 11:00

Nuclear Analytical Methods

Verbal

The safety and the behavior of radioactive wastes on a 1000000 year time scale are basically dependent on the radionuclide composition. During such a long time period leakage from the waste packages and the depository into the environment cannot be excluded and radionuclide migrations have to be considered. Therefore it is important to know the exact composition of the various waste forms...

96. Activity measurements of barrels filled with radioactive waste

Denis Glavic-Cindro (Jožef Stefan Institute)

15/05/2014, 11:15

Nuclear Analytical Methods

Verbal

In barrels with radioactive waste radioactivity may be inhomogeneously distributed. Since the inhomogeneity may be unknown, when measuring the activity of the barrel it is advantageous to use the radiation emitted from it. Consequently, robust methods, capable of yielding the results that are independent on the distribution of the radioactivity within the barrel, must be used. Gamma-rays...

310. Computation of full energy peak efficiency for voluminous radioactive atmospheric sources using remote scintillation gamma-ray spectrometry

Mr Dmitriy Grozdov (Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences), Prof. Vladimir Kolotov (Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences)

15/05/2014, 11:30

Nuclear Analytical Methods

Verbal

A method for computation of full energy peak registration efficiency for voluminous atmospheric gamma radiation sources (emission of nuclear power plant) using collimated scintillation detector has been developed. The method is based on preliminary experiments on calibration of detector response as a function of distance and angle relatively detector axis with further mathematical extension of...

20. Sequential separation of trace Pu, U and other elements in environmental samples

Dr Yutaka Miyamoto (Japan Atomic Energy Agency (JAEA))

15/05/2014, 11:45

Nuclear Analytical Methods

Verbal

Abundance and isotopic ratios of trace uranium (U), thorium (Th), lead (Pb) and lanthanides in environmental samples play a key role to investigate features of the samples. Plutonium (Pu) is an artificial element which originates from nuclear bomb tests and accidental releases from nuclear power plants. The analytical data may give information on origin of the sample, dating of mineral...