Atoms, Radiation, and Radiation Protection

Turner, James

doi:10.1002/9783527616978

Cited by 240 publications

(209 citation statements)

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“…For more in depth descriptions of the concepts and terms used to measure radiation (especially as related to exposure) and the total absorbed dose received by a receptor, see Blaylock and others (1993), Brechignac and Desmet (2005), and Turner (2007).…”

Section: Discussionmentioning

confidence: 99%

“…Tabulations of chemical exposure concentrations and radiation dose based on available guidance are also included as a linkage to the pathway analysis (tables [6][7][8]. Derivation of radiation dose is detailed in Turner (2007) and Bréchignac and Desmet (2005), and exposure units used to characterize radiation toxicity are detailed in appendix 2.…”

Section: Ecotoxicity Valuesmentioning

confidence: 99%

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Hydrological, geological, and biological site characterization of breccia pipe uranium deposits in Northern Arizona

2010

Scientific Investigations Report

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Section: Discussionmentioning

confidence: 99%

Section: Ecotoxicity Valuesmentioning

confidence: 99%

Hydrological, geological, and biological site characterization of breccia pipe uranium deposits in Northern Arizona

2010

Scientific Investigations Report

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“…A convenient scintillator is added to this base and mixed homogeneously. The concentration of this main scintillator is about 1% by weight of the mixture, which is sufficient to produce a high light yield [3]. Most manufacturers offer different Scintillators based on varying concentration of solvents, so that the user can make the selection according to the system requirements.…”

Section: Overview On Scintillation Detectorsmentioning

confidence: 99%

Optimization of plastic scintillator thicknesses for online beta/gamma detection

Machrafi

2012

EPJ Web of Conferences

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For efficient beta detection in a mixed beta gamma field, Monte Carlo simulation models have been built to optimize the thickness of a plastic scintillator, used in a whole body monitor. The simulation has been performed using the MCNP/X code for different thicknesses of plastic scintillator from 150 μm to 600 μm. The relationship between the thickness of the scintillator and the efficiency of the detector has been analyzed. For 150 μm thickness, an experimental investigation has been conducted with different beta sources at different positions on the scintillator and the counting efficiency of the unit has been measured. Evaluated data along with experimental ones have been discussed. A thickness of 300 μm to 500 μm has been found to be the optimum thickness for high efficiency beta detection in the presence of low energy gamma-rays.

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“…Averaging the pulse heights from the separate SiPMs results in a resolution improvement, averaged over all measurements, of 1.43 ± 0.03, 1.42 ± 0.03 and 1.42 ± 0.02 times for the S3035, matched S3035 and MAPD-3n detectors respectively. This indicated that the resolution is primarily due to random noise, where averaging over the two detectors results in a theoretical Assuming that the energy resolution is dominated by Poisson statistics, the mean number of photons detected, n , may be estimated using the measured energy resolution R [18]:…”

Section: Energy Calibration and Resolutionmentioning

confidence: 99%

Proton beam characterisation of a prototype thin-tile plastic scintillator detector with SiPM readout for use in fast-neutron tracker

et al. 2012

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, J. (2012). Proton beam characterisation of a prototype thin-tile plastic scintillator detector with SiPM readout for use in fast-neutron tracker. Journal of Instrumentation, 7 (2), 1-14. ABSTRACT: We present details of the construction and characterisation of a prototype thin-tile plastic scintillation detector for use in a multi-layer Fast Neutron Tracker. Scintillation light is read out using solid-state silicon photomultiplier detectors (SiPMs). The Tracker consists of alternating scintillator and Timepix detector layers. The scintillator tile provides a hydrogen-rich target, in which impinging fast neutrons produce recoil protons. The energy lost by protons in the plastic scintillator are measured and recoil protons exiting the scintillator are tracked in the Timepix detector. The combination of signals from the scintillator and Timepix provides information to reconstruct the energy or direction of the impinging neutron, using calculations based on the kinematics of the elastic neutron scattering. Proton Beam Characterisation of aThree prototype scintillation detectors were constructed, using either a pair of 3x3 mm sensitive area SPMMicro3035 SiPMs from SensL or a pair of MAPD-3n SiPMs from Zecotek. The detector performances were characterised using a mono-energetic proton beam. An absolute energy calibration was measured at 3, 4 and 5 MeV proton energies with good linearity. The best measured energy resolution was 29.8% at 5 MeV. Spatial uniformity was assessed by measuring the response across the detector face. Finally, the tile detector's ability to provide a trigger for Timepix acquisition in the stack configuration was demonstrated for single and double neutron recoil events using a DT neutron source. The SiPM-based design was found to be well-suited for the application of the multi-layer fast neutron tracker.

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Atoms, Radiation, and Radiation Protection

Cited by 240 publications

References 0 publications

Hydrological, geological, and biological site characterization of breccia pipe uranium deposits in Northern Arizona

Hydrological, geological, and biological site characterization of breccia pipe uranium deposits in Northern Arizona

Optimization of plastic scintillator thicknesses for online beta/gamma detection

Proton beam characterisation of a prototype thin-tile plastic scintillator detector with SiPM readout for use in fast-neutron tracker

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