Bibcode
Reglero, V.; Sánchez, F.; Rodrigo, J.; Velasco, T.; Gasent, J. L.; Chato, R.; Alamo, J.; Burgos, J. A.; Suso, J.; Blay, P.; Martínez, S.; Doñate, M.; Reina, M.; Sabau, D.; Ruiz-Urien, I.; Santos, I.; Zarauz, J.; Vázquez, J.
Bibliographical reference
In: Exploring the gamma-ray universe. Proceedings of the Fourth INTEGRAL Workshop, 4-8 September 2000, Alicante, Spain. Editor: B. Battrick, Scientific editors: A. Gimenez, V. Reglero & C. Winkler. ESA SP-459, Noordwijk: ESA Publications Division, ISBN 92-9092-677-5, 2001, p. 619 - 622
Advertised on:
9
2001
Citations
3
Refereed citations
3
Description
Coded Aperture System performances are defined by the geometry of the
code, detector pixel geometry relationship and focal length. Physical
Coded Aperture Systems deviate from the ideal ones on two basic aspects:
uncertainties on pixel location and size coming form the manufacturing
process and deviations from their theoretical transparency/opacity
values (1/0, 0/1), when support structures are required. Mask support
structure imposes penalties on transparency as a function of the energy
and angle of the incident photons. Pixel position and size values
include uncertainties coming from the code cut in tungsten plates and
assembly process. The scope of this paper is to summarize the results of
the code elements position and size, as well as transparency/opacity
values found for the IBIS Coded Aperture System. Both sets of data
define the optical performances of the IBIS Mask required to perform
accurate imaging of celestial gamma-ray sources.