IEAP - Institute of Experimental and Applied Physics

Imaging CINAA

Technique of Neutron Instrumental Activation Analysis (NIAA) takes activated samples that are investigated for content of a certain element. Excited nuclei of the element are descending to the stable level emitting unique radiation. If the radiation is detected and identified (mostly by energy measurement) then presence of searched isotope is confirmed and its concentration can be determined. The method is very precise and allows determination of very low fractions of elements (sub ppm level).

In major cases decay of a nucleus is accompanied by emission of electrons that can be utilized for imaging. When detection of more then one quantum is used in coincidence the method is called Coincidence INAA (CINAA).In this case we can determine not only quantity of a certain element but also its distribution.

Possibilities of position sensitive INAA with Medipix detector are studied now.

Responsible person

Jakůbek Jan

IEAP

Co-workers

Pospíšil Stanislav	IEAP
Kroupa Martin	IEAP

Grants:

Number	Name	Agency
MSM 6840770040	Research Program 40: Usage of radionuclides and ionizing radiation.	MŠMT

Articles in Impacted Journals
(2)

Articles in Conference Proceedings
(2)

Thesis
(1)

Other publications
(1)

All
(6)

Table format

M. Kroupa, J. Jakůbek, F. Krejčí, "Non-Contact Imaging with Enhanced Spatial Resolution by Secondary Electron Detection", IEEE NSS/MIC Knoxville Conf. Record, page 462-463, doi: 10.1109/NSSMIC.2010.5873803

J. Jakůbek, A. Cejnarová, M. Platkevič, M. Vobecký, "Image accumulation driven by external trigger signal", Československý Časopis pro Fyziku, 1/2008, 46-49

I. Ndiaye, M. Vobecký, S. Pospíšil, J. Jakůbek, T. Holý, "Determination of Iridium Content by Coincidence Neutron Activation Analysis", Chem. Listy 101 (2007) 327-333

J. Jakůbek, A. Cejnarová, M. Platkevič, M. Vobecký, "Image Accumulation in Pixel Detector Gated by Late External Trigger Signal and its Application in Imaging Activation Analysis", AIP Vol. 958 (2007), pp 131

I. Ndiaye, "Instrumental Coincidence Neutron Activation Analysis (Supervisor: J. Jakubek)", Ph.D. Thesis, CTU Prague (2007)

J. Jakůbek, S. Pospíšil, I. Štekl, M. Vobecký, . et al., "Coincidence gamma-gamma spectroscopy system for instrumental neutron activation analysis", NIM A Vol. 414, pages 261-264 (1998)