منابع مشابه
WFC 3 UVIS PSF Evaluation in Thermal - Vacuum Test # 3
We have assessed the image quality of the WFC3 UVIS channel in a flight-like thermalvacuum environment, and with its flight detector installed. Point source measurements at 16 field positions and four wavelengths indicate excellent imaging performance for the UVIS channel. Encircled energies readily meet expectations over the field, with CASTLE stimulus illumination. Models including the mid-fr...
متن کاملWFC3 Flight Detector Alignment Characterization in Thermal-Vacuum Test #1
We have performed an initial assessment of the alignment status of the UVIS-1and IR-2 flight detectors as mounted in WFC3 during the first instrument-level thermal-vac test. Both detectors are found to be aligned out of tolerance, indicating errors in the transfer of surrogate alignment information to the flight articles. Measurements made at various times through the thermal vac test, with the...
متن کاملThermal rectification through vacuum.
We propose a mechanism for photon mediated thermal rectification through vacuum relying only on the temperature dependence of electromagnetic resonances. We also propose an example implementation consisting of two polytypes of silicon carbide, which exploits the interaction of temperature dependent surface phonon polaritons to achieve significant rectification.
متن کاملWFC 3 2008 - 32 WFC 3 Optical Alignment Characterization in Thermal - Vacuum Test # 3
We have performed an assessment of the optical alignment of the WFC3 instrument in its final flight configuration, including the UVIS-1’ and IR-4 detectors, during the 3 thermal-vac test in March 2008. Both detectors are found to be aligned to well within tolerance in all degrees of freedom. The corrector settings, after adjustment to optimize image quality, are within the budgeted range for gr...
متن کاملNegative differential thermal conductance through vacuum
We propose a scheme for achieving negative differential thermal conductance in near-field electromagnetic thermal transfer. As an example, we show that the scheme can be implemented with two slabs of silicon carbide brought in close proximity to each other. We also describe how a bistable thermal switch can be constructed in this manner. VC 2012 American Institute of Physics. [doi:10.1063/1.367...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Korean Society for Aeronautical & Space Sciences
سال: 2003
ISSN: 1225-1348
DOI: 10.5139/jksas.2003.31.1.120