N A A

prepared by Magdalena Birowska & Karolina Milowska Jagiellonian University

Summer Students Practice,Joint Institute for Nuclear Research in Dubna

practice supervisor: assoc.prof. M.V. FrontasyevaFLNP JINR

Piece of historyGeorge Hevesy and Hilde Levi, Denmark, 1936:„...The usual chemical methods of analysis fail, as is well known,for most of the rare earth Elements and have to be repleaced by spectroscopic, X-ray, and magnetic methods. The latter methods can be supplemented by the application of neutrons to analitical problems by making use of artificial radioactivity and of the great absorbing power of some of the rare earth elemnets for slow neutrons...”

•ENAA•FNAA

1936-1944 nuclear reactors 1944-1950 sticintillation detectors 101950-1960 semiconductor detectors NaI(Tl) 1001960-1970 semiconductor detectors Ge(Li) 10001970-2007 extensive applicatios 3000

•INAA•RNAA (CNAA)

NAA

•PGNAA•DGNAA

Number of publications

Gamma Spectra from a Sample of Pottery Irradiated for 24 Hours, Decayed for 9 Days, and Counted for 30 Minutes on a HPGe Detector

•Thermal neutrons (E~0.025 eV)•Epithermal neutrons (E~0.5 eV-100keV)•Fast or fission neutrons (E~100 keV-25 MeV)

mnmg

abs

scabstot

nnnn

nnnnnpnn

),(...),(),(),(

)',()2,(),(),(),(

1

FRANK LABORATORY OF NEUTRON PHYSICSJOINT INSTITUTE FOR NUCLEAR RESEARCH

1956

IBR-2 Pulsed Reactor andREGATA complex

I.M. Frank (1908-1990)The Nobel Prize in Physics of 1958"for the discovery and the interpretation of the Cherenkov effect"

F. L. Shapiro (1915-1973)

C h3 C h4

C h0

C dS

C h1 C h2BS

DC VLR C BU

SU

SM

32

R

d28

d28

D

R 1

d16

R 2

BS

D D

C B

A A C C IBMPC

R 3

types of containers:

samples:

experimental room insidethe reactor’s building

systematic study of air pollution with heavy metals and other toxic elements in Bulgaria (moss survey 2000-2002)

project: REGATAinvestigation of atmospheric deposition of heavy metals in some industrial areas of Eastern Europe : Russia, Poland, Romania, Slovakia, Slovenia, Serbia, using the biomoss monitoring technique and employing nuclear and related analytical methods for analysis , and GIS technology

11

22

33

44

55Hylocomium splendens

BiomonitoringBiomonitoring

Summary...

•http://nfdfn.jinr.ru/•http://content.answers.com/main/content/wp/en/thumb/3/33/•http://nobelprize.org/nobel_prizes/physics/laureates/1994/illpres/how.html•http://www.wikipedia.com•http://reactor.engr.wisc.edu/NAAtext.htm•http://www.missouri.edu/~glascock/naa_over.htm•http://www.ne.ncsu.edu/NRP/naa.html•http://www.sciner.com/Neutron/naa.html•http://www.thebritishmuseum.ac.uk/science/text/techniques/sr-tech-naa-t.html•http://www.wpi.edu/Academics/Depts/ME/Nuclear/Reactor/Labs/R-naa.html

More information...

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