Determination of SPI coded mask transmission matrix

Details Determination of SPI coded mask transmission matrix Determination of SPI coded mask transmission matrix

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.459..661s&link_type=abstract

In: Exploring the gamma-ray universe. Proceedings of the Fourth INTEGRAL Workshop, 4-8 September 2000, Alicante, Spain. Editor:

Astronomy and Astrophysics

Astrophysics

3

High Energy Astrophysics, Imaging, Signal Multiplexing

Scientific paper

The goal of this paper is to present the Transmission Matrix of the SPI Mask STM/QM Model. The experimental set-up used to determine INTEGRAL Spectrometer (SPI) Mask Transmission Matrix is hereafter described: collimation system, radioactive sources, energy ranges covered and pitch angles covering the expected SPI Field of View. The QM results fulfil transparency/opacity requirements. Same materials and manufacturing procedures have been used in both STM/QM and FM Masks, consequently we do not expect significant changes on the FM Transmission Matrix. Preliminary results of the Flight Model support this statement.

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