A Method to Measure the Flatness of the LSST Focal Plane Assembly in Situ
| dc.creator | Langeveld, Willy | |
| dc.date | 2005-11-02 | |
| dc.date.accessioned | 2026-07-07T06:44:49Z | |
| dc.date.available | 2026-07-07T06:44:49Z | |
| dc.description | In this note I describe an inexpensive and simple laser-based method to measure the flatness of the LSST focal plane assembly (FPA) in situ, i.e. while the FPA is inside its cryostat, at -100 C and under vacuum. The method may also allow measurement of the distance of the FPA to lens L3, and may be sensitive enough to measure gravity- and pressure-induced deformations of L3 as well. The accuracy of the method shows promise to be better than 1 micron. | |
| dc.description | 11 pages, 8 figures | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0511058 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0511058 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/102876 | |
| dc.subject | Astrophysics | |
| dc.title | A Method to Measure the Flatness of the LSST Focal Plane Assembly in Situ | |
| dc.type | text |