ATTENZIONE! IL REPOSITORY E’ APERTO ESCLUSIVAMENTE ALL’IMMISSIONE DEI RAPPORTI TECNICI (COLLEZIONE 4.01). NON E’ POSSIBILE INSERIRE PRODOTTI IN TUTTE LE ALTRE COLLEZIONI, A CAUSA DI PROBLEMI TECNICI. THE REPOSITORY IS OPEN EXCLUSIVELY FOR THE SUBMISSION OF TECHNICAL REPORTS (COLLECTION 4.01). SUBMISSIONS TO ALL OTHER COLLECTIONS ARE TEMPORARILY UNAVAILABLE, DUE TO TECHNICAL ISSUES.
 

Multi-technique investigation of silicon nitride/aluminum membranes as optical blocking filters for high-energy space missions

Journal
Date Issued
2024
Author(s)
•
•
•
•
•
•
Cicero, Ugo Lo
•
Törmä, Pekka T.
•
Magnano, Elena
•
Nappini, Silvia
•
Píš, Igor
•
Perinati, Emanuele
•
Diebold, Sebastian
•
Guzman, Alejandro
•
Tenzer, Chris
•
Buscarino, Gianpiero
•
Gollwitzer, Christian
•
Handick, Evelyn
•
Krumrey, Michael
•
Laubis, Christian
•
•
DOI
Description
We acknowledge Elettra Sincrotrone Trieste for providing access to its synchrotron radiation facilities and for financial support, we received the Italian full support for both the proposals (Grant Nos. 20180369 and 20190214). E.M., S.N., and I.P. acknowledge funding from EUROFEL project (RoadMap ESFRI). The research leading to these results received funding from the European Space Agency for the project “Large Area high-performance Optical Filters for X-ray instrumentation – LAOF” (Grant No. 4000120250/17/NL/BJ), and from the European Union’s Horizon 2020 Program for the project AHEAD2020 (Grant No. 871158).
Abstract
X-ray detectors for space astrophysics missions are susceptible to noise caused by photons with energies outside the operating energy range; for this reason, efficient external optical blocking filters are required to shield the detector from the out-of-band radiation. These filters play a crucial role in meeting the scientific requirements of the X-ray detectors, and their proper operation over the life of the mission is essential for the success of the experimental activity. We studied thin sandwich membranes made of silicon nitride and aluminum as optical blocking filters for high-energy detectors in space missions. Here, we report the results of a multi-technique characterization of SiN membranes with thicknesses in the range from 40 nm to 145 nm coated with few tens of nanometers of aluminum on both sides. In particular, we have measured the X-ray transmission at synchrotron radiation beamlines, the rejection of ultraviolet, visible, and near-infrared radiation, the amount of native oxide on the aluminum surfaces by X-ray photoelectron spectroscopy, the morphology of the sample surfaces by atomic force microscopy, and the aging effects under proton irradiation.
Funding(s)
Volume
10
Issue
01
Uri
Url
Issn Identifier
2329-4124
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

JATIS_Sciortino_SiN_2024.pdf

Description
PDF editoriale
Size

5.4 MB

Format

Adobe PDF

Checksum (MD5)

3317b4e4c9c2cbbd429c5d8f9f80275d