Hard-field THz Tomography in Amplitude Contrast

B.A. Banuelos-Saucedo; K.B. Ozanyan

doi:10.1109/ICSENS.2014.6985244

Hard-field THz Tomography in Amplitude Contrast

B.A. Banuelos-Saucedo, K.B. Ozanyan

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We have performed THz tomography imaging inamplitude contrast of shaped Styrofoam phantoms, using a timedomainspectroscopy system. Object cross-sections werereconstructed at certain THz frequencies by separating theFourier transformed frequency components and using standardfiltered backprojection. The resulting images show strong edgeattenuation. We introduce a modified Rayleigh roughness factorand present evidence that edge attenuation is produced byFresnel refraction at high incidence angles and surfacescattering. The image quality is best in the range 0.8-2.0THz anddepends on the porosity of the Styrofoam, confirming thatvolume scattering is the main loss mechanism in that range.

Original language	English
Title of host publication	Proceedings of IEEE SENSORS 2014
Place of Publication	New Jersey, USA
Publisher	IEEE
DOIs	https://doi.org/10.1109/ICSENS.2014.6985244
Publication status	Published - Dec 2014
Event	IEEE SENSORS 2014 - Valencia, Spain Duration: 2 Nov 2014 → 4 Nov 2014

Conference

Conference	IEEE SENSORS 2014
City	Valencia, Spain
Period	2/11/14 → 4/11/14

Keywords

Hard-field THz tomography
THz time-domain spectrometry
THz tomography in amplitude contrast
Rayleigh roughness factor
Styrofoam phantom

Access to Document

10.1109/ICSENS.2014.6985244

Fibre-Based Fast T-Ray Tomography
Ozanyan, K. & Zhang, Y.
1/07/07 → 30/06/10
Project: Research

Cite this

@inproceedings{76b03b5248e54c02a469c296b597ee70,

title = "Hard-field THz Tomography in Amplitude Contrast",

abstract = "We have performed THz tomography imaging inamplitude contrast of shaped Styrofoam phantoms, using a timedomainspectroscopy system. Object cross-sections werereconstructed at certain THz frequencies by separating theFourier transformed frequency components and using standardfiltered backprojection. The resulting images show strong edgeattenuation. We introduce a modified Rayleigh roughness factorand present evidence that edge attenuation is produced byFresnel refraction at high incidence angles and surfacescattering. The image quality is best in the range 0.8-2.0THz anddepends on the porosity of the Styrofoam, confirming thatvolume scattering is the main loss mechanism in that range.",

keywords = "Hard-field THz tomography, THz time-domain spectrometry, THz tomography in amplitude contrast, Rayleigh roughness factor, Styrofoam phantom",

author = "B.A. Banuelos-Saucedo and K.B. Ozanyan",

year = "2014",

month = dec,

doi = "10.1109/ICSENS.2014.6985244",

language = "English",

booktitle = "Proceedings of IEEE SENSORS 2014",

publisher = "IEEE",

address = "United States",

note = "IEEE SENSORS 2014 ; Conference date: 02-11-2014 Through 04-11-2014",

}

TY - GEN

T1 - Hard-field THz Tomography in Amplitude Contrast

AU - Banuelos-Saucedo, B.A.

AU - Ozanyan, K.B.

PY - 2014/12

Y1 - 2014/12

N2 - We have performed THz tomography imaging inamplitude contrast of shaped Styrofoam phantoms, using a timedomainspectroscopy system. Object cross-sections werereconstructed at certain THz frequencies by separating theFourier transformed frequency components and using standardfiltered backprojection. The resulting images show strong edgeattenuation. We introduce a modified Rayleigh roughness factorand present evidence that edge attenuation is produced byFresnel refraction at high incidence angles and surfacescattering. The image quality is best in the range 0.8-2.0THz anddepends on the porosity of the Styrofoam, confirming thatvolume scattering is the main loss mechanism in that range.

AB - We have performed THz tomography imaging inamplitude contrast of shaped Styrofoam phantoms, using a timedomainspectroscopy system. Object cross-sections werereconstructed at certain THz frequencies by separating theFourier transformed frequency components and using standardfiltered backprojection. The resulting images show strong edgeattenuation. We introduce a modified Rayleigh roughness factorand present evidence that edge attenuation is produced byFresnel refraction at high incidence angles and surfacescattering. The image quality is best in the range 0.8-2.0THz anddepends on the porosity of the Styrofoam, confirming thatvolume scattering is the main loss mechanism in that range.

KW - Hard-field THz tomography

KW - THz time-domain spectrometry

KW - THz tomography in amplitude contrast

KW - Rayleigh roughness factor

KW - Styrofoam phantom

U2 - 10.1109/ICSENS.2014.6985244

DO - 10.1109/ICSENS.2014.6985244

M3 - Conference contribution

BT - Proceedings of IEEE SENSORS 2014

PB - IEEE

CY - New Jersey, USA

T2 - IEEE SENSORS 2014

Y2 - 2 November 2014 through 4 November 2014

ER -

Hard-field THz Tomography in Amplitude Contrast

Abstract

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Keywords

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Projects

Fibre-Based Fast T-Ray Tomography

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