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Comparing and contrasting detectors: jwst nir vs hst wfc3
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Rauscher, Bernard J. |
| Copyright Year | 2015 |
| Description | In many ways, WFC3s IR channel is a good indicator for what to expect with JWST. There are some differences, most of which should be beneficial in JWST- JWSTs lower operating temperature will freeze out charge traps that would affect WFC3. Benefits should include lower dark current, lower persistence, and better reciprocity- JWSTs more recent HgCdTe process has lower defect density. The benefits are as described above- JWST uses better indium barriers. The benefits should include fewer RC type pixels. One area where more study might be beneficial is stability. The detector electronics play a significant role in determining how stable a detector system is(v.s. bias drifts and photometry). JWSTs SIDECARs are completely WFC3s Ball electronics- Studies comparing the bias and photometric stability of WFC3 and JWST might be useful to informing data acquisition and calibration strategies for JWST. |
| File Size | 5063063 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150023398 |
| Archival Resource Key | ark:/13960/t8rc22c1m |
| Language | English |
| Publisher Date | 2015-11-16 |
| Access Restriction | Open |
| Subject Keyword | Nir Hst Jwst Mercury Cadmium Tellurides James Webb Space Telescope Extrasolar Planets Data Acquisition Calibrating Bias Dark Current Indium Photometry Pixels Defects Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
