Results 81 to 90 of about 68,806 (303)

Emissivity measurements of reflective surfaces at near-millimeter wavelengths [PDF]

, 1995
We have developed an instrument for directly measuring the emissivity of reflective surfaces at near-millimeter wavelengths. The thermal emission of a test sample is compared with that of a reference surface, allowing the emissivity of the sample to be ...
Bock, J. J., Fischer, M. L., Lange, A. E., Parikh, M. K.   +3 more
core   +1 more source

A Colloidal Quantum Dot Thermistor and Bolometer

Advanced Materials, EarlyView.
This work introduces colloidal quantum dot thermistors employing a potential barrier structure to tune the activation energy of transport and hence the temperature coefficient of resistance (TCR). Upon integration with plasmonic absorbers, the CQD‐based bolometer device enables room‐temperature wavelength‐selective photodetection across the mid‐ to ...
Gaurav Kumar, Mariona Dalmases, Nima Taghipour, Rajesh Bera, Guy L. Whitworth, Goretti Torres Perez, Miguel Dosil, Gerasimos Konstantatos   +7 more
wiley   +1 more source

Research on Beam Pulsing Technology of Low Energy Beam Transport Line for Proton Linear Accelerator

Yuanzineng kexue jishu
Beam pulsing technology serves as a critical methodology in modern accelerator systems, offering substantial improvements in beam quality enhancement, time-resolved measurement capabilities, space charge effect mitigation, and operational flexibility ...
QIN Cheng, YANG Yu, YANG Jinghe, WANG Changqiang, LI Liang, LYU Yuepeng, ZHU Zhibin, WANG Guobao
doaj   +1 more source

Broad-band chopper for a CW proton linac at Fermilab

, 2011
Requirements and technical limitations to the bunch-by-bunch chopper for the Fermilab Project X are discussed.Comment: 3 pp. Particle Accelerator, 24th Conference (PAC'11) 2011. 28 Mar - 1 Apr 2011.
Gianfelice-Wendt, E., Lebedev, V. A., Nagaitsev, S., Solyak, N., Sun, D.   +4 more
core  

Design of a horizontal neutron reflectometer for the European Spallation Source

, 2013
A design study of a horizontal neutron reflectometer adapted to the general baseline of the long pulse European Spallation Source (ESS) is presented. The instrument layout comprises solutions for the neutron guide, high-resolution pulse shaping and beam ...
Lieutenant, K., Moulin, J. -F., Nekrassov, D., Steitz, R., Strobl, M., Trapp, M.   +5 more
core   +1 more source

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

Advanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz, Lukas E. Lehner, Stepan Demchyshyn, Bekele Hailegnaw, Phillip Jahelka, Magdalena Breitwieser, Sercan Özen, Andrea Denker, Jürgen Bundesmann, Alina Hanna Dittwald, Dilara Karabulut, Philipp Tockhorn, Steve Albrecht, Felix Lang, Markus C. Scharber, Michael D. Kelzenberg, Harry A. Atwater, Martin Kaltenbrunner   +17 more
wiley   +1 more source

Engineering tests of the C-141 telescope [PDF]

Data on image quality, chopper performance, and the closed-loop operation of the 91 cm telescope of the Kuiper Airborne Observatory which were obtained in September 1977 are ...
Erickson, E. F., Strecker, D. W.
core   +1 more source

Short‐Wavelength Infrared Imaging with Organic Photodetectors Based on Non‐Fullerene Acceptors with Detection above 1200 nm

Advanced Materials, EarlyView.
Solution‐processed organic photodetectors (OPDs) based on two novel low band gap non‐fullerene acceptors BZIC‐2F and BZIC‐2Cl, when blended with common polymer donor P3HT, extend detection range beyond 1200 nm with superior performance, rivaling costly inorganic sensors and past literature.
Zhuoran Qiao, Sandeep Sharma, Yakun He, Marie Houot, Kun‐Han Lin, Davide Nodari, Filip Aniés, Matilde Brunetta, Patipan Sukpoonprom, Eunyoung Hong, Edoardo Angela, Zian Wang, Pichaya Pattanasattayavong, Martyn A. McLachlan, Artem Bakulin, Denis Andrienko, Frédéric Laquai, Martin Heeney, Nicola Gasparini   +18 more
wiley   +1 more source

ACBAR: The Arcminute Cosmology Bolometer Array Receiver

, 2003
We describe the Arcminute Cosmology Bolometer Array Receiver (ACBAR); a multifrequency millimeter-wave receiver designed for observations of the Cosmic Microwave Background (CMB) and the Sunyaev-Zel'dovich effect in clusters of galaxies.
A. D. Turner, A. E. Lange, Beasley A. J., Benoit A., C. L. Kuo, C. Reichardt, C. Tucker, C. V. Haynes, D. Woolsey, E. Torbet, G. Sirbi, Hanbury Brown R., Hanbury Brown R., Hanbury Brown R., J. B. Peterson, J. H. Goldstein, J. J. Bock, J. Leong, J. Ruhl, Kildal P. S., Lamarre J., M. C. Runyan, M. D. Daub, M. Lueker, M. Newcomb, Mather J. C., P. A. R. Ade, R. S. Bhatia, Sunyaev R. A., Tegmark M., Tornikoski M., W. L. Holzapfel, Wylde R. J., Yamada Y.   +33 more
core   +1 more source

Direct Mode‐Resolved Measurement of Interfacial Phonon Transport by Acoustic Phonon Reflectometry

Advanced Materials Interfaces, EarlyView.
We introduce a novel analysis, acoustic phonon reflectometry, that measures the mode‐resolved phonon reflection coefficient at semiconductor interfaces. In aluminum nitride, we observe excellent agreement with the acoustic mismatch model across three distinct interfaces.
Christopher Hennighausen, Gustavo A. Alvarez, Jeffrey Z. Kaaret, Patrick Soucy, Amir F. Amhaz, Jeffrey Moses, Kenneth R. Beyerlein, Nicole A. Benedek, Zhiting Tian, Ankit S. Disa   +9 more
wiley   +1 more source