International Conference on Applications of Radiation Science and Technology

Session

B04

B04

25 Apr 2017, 09:00

IAEA Board Room B/M1 (IAEA Headquarters)

Conveners

B04: Mitigating Climate Change: Protecting Coast Line and Environment

• Catherine Hughes
• TSec Patrick Brisset

435. Radiotracer Methods for Understanding Contaminant Dynamics in Aquatic Environments

Ms Catherine Hughes (ANSTO, Australia)

25/04/2017, 09:00

RADIATION TECHNOLOGIES FOR MEASUREMENT

Oral

Radioactive tracers have a distinct advantage in tracing contaminant migration in natural systems and characterising contaminant mobility and uptake into living organisms in already-contaminated environments or at trace (environmental) levels. To use the contaminant itself in its non-radioactive form, concentrations significantly higher than the normal contaminated background level are...

417. Nuclear Technologies Applied to Sediment Transport in River, Estuarine and Oastal Zones to Validate CFD Codes

Mr Damien Pham Van Bang (Laboratory for Hydraulic Saint-Venant, France)

25/04/2017, 09:15

RADIATION TECHNOLOGIES FOR MEASUREMENT

Oral

Siltation in harbour is a lonstanding problem which could generate important costs for maintenance program to secure nautical conditions. This paper reports different studies on sediments in France (Le Havre, Bordeaux, Saint-Michel and Fort-de-France) aiming to characterise the rheological properties of sediment, analyse sedimentation-consolidation processes and propose a numerical model for...

153. Radiotracer Study to Investigate the Spatial Dispersion Pattern of Dredged Materials in Hooghly Estuary, West Bengal, India

Mr Kalyan Bhar (Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India)

25/04/2017, 09:30

RADIATION TECHNOLOGIES FOR MEASUREMENT

Oral

Maintenance of adequate draft in navigation channel for movement of ships from the sea to the port is a serious concern for port authorities. Available draft gets reduced in course of time due to silt deposition on the channel bed and one has to resort to maintenance dredging which is quite an expensive work. The problem of silt deposition is particularly critical for riverine ports like...

175. Technetium-99m: From Nuclear Medicine Applications to Fine Sediment Transport Studies

Mr Jefferson Vianna Bandeira (National Nuclear Energy Commission (CNEN-CDTN), Brazil)

25/04/2017, 09:45

RADIATION TECHNOLOGIES FOR MEASUREMENT

Oral

Technetium ${}^{99m}$Tc is, nowadays, the most applied radioisotope in nuclear medicine, whose use began in the mid-1960s. Features such as emission of $\gamma$-radiation of low energy ($140$ keV) with very good imaging properties, half-life ${\tau }_{1/2}=6.02$ h, and production via relatively long-lived generators, facilitating their supply and use in locations far from manufacturing sites,...

345. The Use of Nucleonic Gauge JTTX in the Port of Nantes Saint Nazaire

Mr Patrick Brisset (Internationa Atomic Energy Agency (IAEA), Vienna, Austria)

25/04/2017, 10:00

RADIATION TECHNOLOGIES FOR MEASUREMENT

Oral

There is a continuous sedimentation in harbour basins and access channels. Therefore maintenance dredging is necessary. The depth necessary for sailing includes the free space between the keel and the bed of the channel called keel-clearance . Tests on physical models indicated that free movement of ships in the harbour is possible upto silt density 1.2 g/cm3. The layer of fluid mud...

53. Water Renewal in Montevideo´s Bay II: a Compartmental Fractional Model for Tritium Kinetics

Mr Roberto Suárez-Antola (Asesor, Ministerio de Industria, Energía y Minería, Uruguay)

25/04/2017, 10:15

RADIATION TECHNOLOGIES FOR MEASUREMENT

Oral

This paper describes the construction of a new compartmental fractional model for water renewal in Montevideo’s Bay that improves a conventional two compartments model [1]. The validity of the fractional kinetic model and its practical applicability are discussed. The available evidence suggests that the highly polluted Montevideo’s bay operates as an intermittent tidal pump that injects...

65. The Radiotracer 7Be in Studying Environmental Processes

Ms Alexandra IOANNIDOU (Aristotle University of Thessaloniki, Physics Department, Nuclear Physics Laboratory, Thessaloniki, 54124, Greece)

25/04/2017, 10:30

RADIATION TECHNOLOGIES FOR MEASUREMENT

Oral

THE RADIOTRACER 7Be IN STUDYING ENVIRONMENTAL PROCESSES A. Ioannidou1, A. Vasileiadis1, D. Melas2 1Aristotle University of Thessaloniki, Physics Department, Nuclear Physics Laboratory, Thessaloniki 54124, Greece 2Aristotle University of Thessaloniki, Physics Department, Laboratory of Atmospheric Physics, Thessaloniki 54124, Greece The objective of the study is to define the time...