Grazing incidence relay opticsThe necessity to work in the focal plane of the primary mirrors has been one of the factors limiting the utility of grazing incidence telescopes in X-ray astronomy. In connection with the reported investigation, computer ray tracing programs have been used to study the performance of several grazing incidence relay optics (GIRO) systems used together with a large nested solar X-ray telescope. It was found that GIRO magnifiers are useful to map appropriate sized regions of the sun onto available CCD detectors. GIRO collimators can be used together with an X-ray spectrometer to study the X-ray spectrum from very small regions on the sun. Attention is given to the stationary mode, the tracking mode, and the size of GIRO elements. It is found that for a given GIRO size and magnification a use of the diverging system has the advantage of reducing the overall length of the main telescope-GIRO combination. However, the resolution provided by the diverging GIRO may not be as good as that obtained with the corresponding converging GIRO.
Document ID
19830031505
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Chase, R. C. (American Science and Engineering, Inc. Cambridge, MA, United States)
Davis, J. M. (American Science and Engineering, Inc. Cambridge, MA, United States)
Krieger, A. S. (American Science and Engineering, Inc. Cambridge, MA, United States)
Underwood, J. H. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)