An algorithm for unfolding neutron dose and dose equivalent from digitized recoil-particle tracks

Technical Report · Wed Oct 01 04:00:00 EDT 1986

DOI:https://doi.org/10.2172/7044184· OSTI ID:7044184

Bolch, W. E.; Turner, J. E.; Hamm, R. N.

Previous work had demonstrated the feasibility of a digital approach to neutron dosimetry. A Monte Carlo simulation code of one detector design utilizing the operating principles of time-projection chambers was completed. This thesis presents and verifies one version of the dosimeter's computer algorithm. This algorithm processes the output of the ORNL simulation code, but is applicable to all detectors capable of digitizing recoil-particle tracks. Key features include direct measurement of track lengths and identification of particle type for each registered event. The resulting dosimeter should allow more accurate determinations of neutron dose and dose equivalent compared with conventional dosimeters, which cannot measure these quantities directly. Verification of the algorithm was accomplished by running a variety of recoil particles through the simulated detector volume and comparing the resulting absorbed dose and dose equivalent to those unfolded by the algorithm.

• Research Organization: Oak Ridge National Lab., TN (USA); Florida Univ., Gainesville (USA). Dept. of Environmental Engineering Sciences
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7044184
• Report Number(s): ORNL/TM-10168; ON: DE87002074
• Country of Publication: United States
• Language: English

Related Subjects

61 RADIATION PROTECTION AND DOSIMETRY
655003* -- Medical Physics-- Dosimetry
ALGORITHMS
COMPUTER CODES
COMPUTERIZED SIMULATION
DOSES
DOSIMETRY
ENERGY TRANSFER
IONIZATION CHAMBERS
LET
MATHEMATICAL LOGIC
MEASURING INSTRUMENTS
N CODES
NEUTRON DOSIMETRY
PARTICLE TRACKS
RADIATION DETECTORS
RADIATION DOSES
SIMULATION