Instrument design and characterization of the Millimeter Bolometer Array Camera on the Atacama Cosmology Telescope

2008 ◽  
Author(s):  
D. S. Swetz ◽  
P. A. R. Ade ◽  
C. Allen ◽  
M. Amiri ◽  
J. W. Appel ◽  
...  
Keyword(s):  
Instrument Design ◽  
Atacama Cosmology Telescope ◽  
Bolometer Array ◽  
Array Camera

Fabrication and Characterization of Superconducting Bilayer (Al/Ti) Transition-Edge Sensor Bolometer Array

2018 ◽  
Vol 48 (2) ◽  
pp. 925-929
Author(s):  
Kamal Ahmad ◽  
Jie Liu ◽  
Qichun Liu ◽  
Gang Li ◽  
Jianshe Liu ◽  
...  
Keyword(s):  
Transition Edge Sensor ◽  
Bolometer Array ◽  
Transition Edge ◽  
Fabrication And Characterization

scholarly journals Characterization of Raman Spectroscopy System Transfer Functions in Intensity, Wavelength, and Time

Instruments ◽  
2020 ◽  
Vol 4 (3) ◽  
pp. 22
Author(s):  
Yu-Chung Lin ◽  
Joseph V. Sinfield
Keyword(s):  
Transfer Function ◽  
Transfer Functions ◽  
Low Cost ◽  
Instrument Design ◽  
Spectroscopic Techniques ◽  
Measurement Science ◽  
Broad Array ◽  
Spectroscopy System ◽  
System Transfer Function

The emergence of a wide variety of relatively low-cost compact spectrometers has led to an increase in the use of spectroscopic techniques by researchers in a broad array of fields beyond those that have traditionally employed these analytical methods. While the fundamental elements and functions of Raman systems are generally consistent, the specific components that compose a system may vary in number, design, and configuration, and researchers often modify off-the-shelf spectrometers for unique applications. Understanding the effect of instrument design and components on acquired information is thus crucial and provides the prospect to optimize the system to individual needs and to properly compare results obtained with different systems while also reducing the potential for unintended misinterpretation of data. This paper provides a practical treatment of the influences in a typical compact spectroscopy system that can impact the extent to which the output of the system is representative of the observed environment, a relationship that in measurement science is classically termed the system transfer function. For clarity, the transfer function is developed in terms of traditional Raman output parameters, namely intensity, wavelength, and time.

Video rate terahertz imaging using Si-technology based micro-bolometer array/camera

2012 ◽  
Vol 1437 ◽  
Author(s):  
Iwao Hosako ◽  
Naoki Oda
Keyword(s):  
Imaging System ◽  
Infrared Detector ◽  
Imaging Method ◽  
Label Free ◽  
Quantum Cascade ◽  
Bolometer Array ◽  
Fire Disaster ◽  
Thermal Cameras ◽  
Application Fields ◽  
Array Camera

ABSTRACTTerahertz (THz) imaging technique has attracted much attention in recent years, because the technique can be applied to many application fields such as nondestructive analysis and imaging method through optically opaque materials. A THz real-time imaging equipment (Terahertz Camera) considered increasingly important in the future has been developed. We report a THz video rate imaging system consisting of a quantum-cascade laser (QCL) light source as a THz illuminator, and a Si-technology based un-cooled micro-bolometer focal-plane array (an infrared detector common in thermal cameras). We also describe two applications of our imaging system: stand-off imaging for search and rescue in a fire disaster, and label-free biomaterial detection.

An eight-element bolometer array camera for the Wyoming Infrared Observatory 2.34-m telescope

1988 ◽  
Vol 100 ◽  
pp. 124
Author(s):  
Thomas C. Williams ◽  
Gary L. Grasdalen ◽  
John Hackwell ◽  
Robert D. Gehrz
Keyword(s):  
Bolometer Array ◽  
Array Camera

scholarly journals Studies of the Perseus Region.I.

2006 ◽  
Vol 2 (S237) ◽  
pp. 405-405
Author(s):  
Srabani Datta
Keyword(s):  
Young Stellar Objects ◽  
Stellar Objects ◽  
Star Forming ◽  
Bolometer Array ◽  
Sky Survey ◽  
Multiple Imaging ◽  
First Results ◽  
Multi Wavelength ◽  
Array Camera ◽  
Infrared Array

AbstractStudies of molecular clouds have shown that they evolve from turbulent gas and dust to form coherent, dense and connected structures. We have conducted a multi-wavelength study of one such molecular cloud, the Perseus star-forming region, which includes Barnard 1 (B1), Barnard 3(B3), Barnard 5 (B5), NGC 1333, IC 348, L1455 and L1448. The data obtained using the Infrared Array Camera (IRAC), Multiple Imaging Photometer (MIPS), the Sub-mm Common User Bolometer Array(SCUBA) and the 2 Micron All Sky Survey (2MASS)provides information about the geometric structure of the dust and gas covering large areas around young stellar objects (YSO), dust temperatures, effect of turbulence and processes of molecule formation and their relevance in the chemical and physical evolution of the cloud. This paper presents our first results.

scholarly journals Characterization of a prototype SCUBA-2 1280-pixel submillimetre superconducting bolometer array

2006 ◽  
Author(s):  
Adam L. Woodcraft ◽  
Matthew I. Hollister ◽  
Dan Bintley ◽  
Maureen A. Ellis ◽  
Xiaofeng Gao ◽  
...  
Keyword(s):  
Bolometer Array ◽  
Superconducting Bolometer

Initial Characterization of Active Transitioning Centaur, P/2019 LD2 (ATLAS)

2021 ◽  
Author(s):  
Bryce Bolin ◽  
Yanga Fernandez ◽  
Carey Lisse ◽  
Timothy Holt
Keyword(s):  
Cross Section ◽  
Hubble Space Telescope ◽  
Gas Production ◽  
Wide Field ◽  
Imaging Spectrometer ◽  
Space Telescope ◽  
Resolution Imaging ◽  
Array Camera

<p>We present visible and mid-infrared imagery and photometry of temporary Jovian co-orbital comet P/2019 LD2 taken with Hubble Space Telescope/Wide Field Camera 3 (HST/WFC3), Spitzer Space Telescope/Infrared Array Camera (Spitzer/IRAC), and the GROWTH telescope network, visible spectroscopy from Keck/Low-Resolution Imaging Spectrometer (LRIS), and archival Zwicky Transient Facility observations taken between 2019 April and 2020 August. Our observations indicate that the nucleus of LD2 has a radius between 0.2 and 1.8 km assuming a 0.08 albedo and a coma dominated by ∼100 μm-scale dust ejected at ∼1m s−1 speeds with a ∼1'' jet pointing in the southwest direction. LD2 experienced a total dust mass loss of ∼108 kg at a loss rate of ∼6 kg s<sup>−1</sup> with Afρ/ cross-section varying between ∼85 cm/125 km<sup>2</sup> and ∼200 cm/310 km<sup>2</sup> from 2019 April 9 to 2019 November 8. If the increase in Afρ/cross section remained constant, it implies LD2ʼs activity began ∼2018 November when within 4.8 au of the Sun, implying the onset of H2O sublimation. We measure CO/CO<sub>2</sub> gas production of <10<sup>27</sup> mol s<sup>−1</sup>/<10<sup>26</sup> mol s<sup>−1</sup> from our 4.5 μm Spitzer observations; g–r = 0.59 ± 0.03, r–i = 0.18 ± 0.05, and i– z = 0.01 ± 0.07 from GROWTH observations; and H2O gas production of <80 kg s<sup>−1</sup> scaling from our estimated C<sub>2</sub> production of Q<sub>C2</sub> < 7.5 x 10<sup>24</sup> mol s<sup>−1</sup> from Keck/LRIS spectroscopy. We determine that the long-term orbit of LD2 is similar to Jupiter-family comets having close encounters with Jupiter within ∼0.5 Hill radius in the last ∼3 y and within 0.8 Hill radius in ∼9 y. Additionally, 78.8% of our orbital clones are ejected from the solar system within 10<sup>6</sup> yr, having a dynamical half-life of 3.4 × 10<sup>5</sup> yr.</p>

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