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Publication > 'From imaging to dosimetry: GEANT4-based study on the application of Medipix to neutron dosimetry '

From imaging to dosimetry: GEANT4-based study on the application of Medipix to neutron dosimetry

Author

Othman Mohd A. R.	Centre for Medical Radiations Physics, University of Wollongong
Marinaro Damian G.	Defence Science and Technology Organisation, Australia
Petasecca M.	Centre for Medical Radiation Physics - University of Wollongong, Australia
Guatelli S.	Centre for Medical Radiations Physics, University of Wollongong, Australia
Cutajar D.	Centre for Medical Radiation Physics - University of Wollongong, Australia
Lerch M.L.F.	Centre for Medical Radiation Physics - University of Wollongong, Australia
Prokopovich Dale A.	Australia Nuclear and Technology Organisation (ANSTO)
Reinhard Mark I.	Australia Nuclear and Technology Organisation (ANSTO)
Uher Josef	CSIRO Process Science and Engineering, Australia
Jakůbek Jan, Ing. Ph.D.	IEAP
Pospíšil Stanislav, Ing. DrSc.	IEAP
Rosenfeld Anatoly	Centre for Medical Radiation Physics - University of Wollongong, Australia

Year

2010

Scientific journal

Radiation Measurements, Vol. 45, Issue 10, p. 1355-1358

Web

http://dx.doi.org/10.1016/j.radmeas.2010.06.058

Abstract

An application of Medipix2 using a newly developed segmented multiple thickness polyethylene (PE) converter for fast neutron detection is presented. The system has the ability to provide an energy independent response for the dose equivalent for fast neutrons. The application of weighting factors to each defined thickness of PE allows for a flattening of the response of the detector system for dosimetry applications. Six PE converter segments were applied, and their thicknesses and weighting factors were optimised to obtain the required energy independent detector response. The study performed by means of GEANT4. Its suitability for neutron dosimetry was studied with respect to a previously published work.

Grants

MSM 6840770040	Research Program 40: Usage of radionuclides and ionizing radiation.
LC06041	Research center "Fabrication, modification and characterization of materials by energetic radiation"

Projects

Medipix
Tracking with pixel detectors Medipix
Thermal-neutron detectors

Cite article as:

M. Othman, D. Marinaro, M. Petasecca, S. Guatelli, D. Cutajar, M. Lerch, D. Prokopovich, M. Reinhard, J. Uher, J. Jakůbek, S. Pospíšil, A. Rosenfeld, "From imaging to dosimetry: GEANT4-based study on the application of Medipix to neutron dosimetry ", Radiation Measurements, Vol. 45, Issue 10, p. 1355-1358 (2010)