Modelling of a holographic interferometry based calorimeter for radiation dosimetry

Beigzadeh, Amir Mohammad; Vaziri, Manouchehr; Ziaie, Farhood

doi:10.1016/j.nima.2017.05.019

Cited by 13 publications

(5 citation statements)

References 28 publications

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“…The IR transceiver is composed of IR tubes, which are assembled in the transceiver and consist of a transmitter and receiver. (18,19) When an object produces emission in the IR range, the IR data operation processing unit can locate the object according to the status of the IR tubes and transmit it to the signal processing unit through the terminal controller. (20)(21)(22)(23) The signal processing unit processes the image and transmits it to a high-speed projector.…”

Section: Sensors In the Rdssmentioning

confidence: 99%

Parameter Matching for 3D Images by a Real 3D Display System with Sensors

Zeng¹,

Wu²,

Chen³

et al. 2021

Sensors and Materials

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In this paper, we describe several key problems in the design of a real 3D display system with sensors (RDSS) and details of matching the parameters to generate 3D images. We also illustrate the feasibility of using light fields to reconstruct 3D images. Additionally, we propose a real 3D display based on optical field reconstruction that also solves the problems of fuzzy images and low mechanical stability caused by the scattering characteristics in an optical field display. We acquire images through sensors and project them to a high-speed rotating mirror through digital light processing (DLP) after computer processing. At the same time, DLP is used to project images to the horizontal space, so that they can be observed by human eyes without auxiliary equipment. We find the best parameters for achieving a clear and stable image by comparing different experimental data. The matching parameters provided in this study can greatly reduce the cost of real 3D display systems that are easily usable and realizable and can be widely used in advertising, exhibitions, and other applications.

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Section: Sensors In the Rdssmentioning

confidence: 99%

Parameter Matching for 3D Images by a Real 3D Display System with Sensors

Zeng¹,

Wu²,

Chen³

et al. 2021

Sensors and Materials

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“…In this process, the exposure times are assumed to be equal for each exposure. HI techniques are also applied to measure strain, in general non-destructive testing, radiation dosimetry and vibration analysis [93] .…”

Section: Double Exposure Holographic Interferometrymentioning

confidence: 99%

Development and application of laser hologram production techniques for the teaching of physics and the public awareness of science

Chibaca¹,

Crespo²

2019

Fourth International Conference on Applications of Optics and Photonics

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“…As such, computer modelling was identified as a useful tool to test the error response of DHI dosimeters to environmental fluctuations and virtually trial improvements to a prototype design. To this end, Beigzadeh et al recently reported on their development of a MATLAB model that reliably simulated the fringe patterns produced by a Mach–Zehnder-type DHI calorimeter, reproducing interference patterns obtained in experiments from the existing literature [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Optical-Radiation-Calorimeter Refinement by Virtual-Sensitivity Analysis

Hubley

Roberts

Meyer

et al. 2019

Sensors

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Digital holographic interferometry (DHI) radiation dosimetry has been proposed as an experimental metrology technique for measuring absorbed radiation doses to water with high spatial resolution via noninvasive optical calorimetry. The process involves digitally recording consecutive interference patterns resulting from variations in the refractive index as a function of the radiation-absorbed dose. Experiments conducted on prototype optical systems revealed the approach to be feasible but strongly dependent on environmental-influence quantities and setup configuration. A virtual dosimeter reflecting the prototype was created in a commercial optical modelling package. A number of virtual phantoms were developed to characterize the performance of the dosimeter under ideal conditions and with simulated disruptions in environmental-influence quantities, such as atmospheric and temperature perturbations as well as mechanical vibrations. Investigations into the error response revealed that slow drifts in atmospheric parameters and heat expansion caused the measured dose to vary between measurements, while atmospheric fluctuations and vibration contributed to system noise, significantly lowering the spatial resolution of the detector system. The impact of these effects was found to be largely mitigated with equalisation of the dosimeter’s reference and object path lengths, and by miniaturising the detector. Equalising path lengths resulted in a reduction of 97.5% and 96.9% in dosimetric error introduced by heat expansion and atmospheric drift, respectively, while miniaturisation of the dosimeter was found to reduce its sensitivity to vibrations and atmospheric turbulence by up to 41.7% and 54.5%, respectively. This work represents a novel approach to optical-detector refinement in which metrics from medical imaging were adapted into software and applied to a a virtual-detector system. This methodology was found to be well-suited for the optimization of a digital holographic interferometer.

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Modelling of a holographic interferometry based calorimeter for radiation dosimetry

Cited by 13 publications

References 28 publications

Parameter Matching for 3D Images by a Real 3D Display System with Sensors

Parameter Matching for 3D Images by a Real 3D Display System with Sensors

Development and application of laser hologram production techniques for the teaching of physics and the public awareness of science

Optical-Radiation-Calorimeter Refinement by Virtual-Sensitivity Analysis

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