Mr. Ricardo Martins Profile

Ricardo Martins

at European Space Research and Technology Ctr

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 21 August 2024 Poster + Paper

Assessing substrate quality and contamination of thin film coatings for x-ray optics

D. Paredes-Sanz, S. Massahi, S. Svendsen, D. D. Ferreira, R. Martins, N. Gellert, A. Jegers, B. Landgraf, A. Thete, I. Ferreira, M. Bavdaz, D. Girou, M. Collon, F. Christensen

Proceedings Volume 13093, 130935C (2024) https://doi.org/10.1117/12.3020934

KEYWORDS: Coating, Contamination, Mirrors, Reflectivity, Particles, Plasma, X-ray optics, Carbon, Vacuum, Thin film coatings

Read Abstract +

This work investigates the importance of substrate quality and contamination of thin film coatings, essential for high-energy reflective mirrors used in astronomical missions and other applications, focusing on the manufacturing process from substrate selection to final assembly of the optics. Characterization of thin film coatings is crucial for evaluating the performance of X-ray mirrors. Multifaceted and synergized methodologies utilizing Xray reflectometry (XRR), X-ray photoelectron spectroscopy (XPS) and optical microscopy (OM) are presented. Herein, we discuss coating performance, encompassing substrate preparation, coating deposition, and storage conditions.

XRR scans provide detailed insights into thin film properties, however, the dependence on accurate a priori knowledge necessitates a robust model for solving the inverse problem. Addressing this limitation, XPS proves invaluable in revealing the chemical composition of thin films, improving the accuracy of the XRR model. Combined characterization through OM and XRR is very useful to find visual insights into surface contamination-induced changes when mirrors are stored for long periods in a clean room environment, as might be the case for some astronomical missions. The synergy among these techniques is pivotal for evaluating coating quality for high-energy astronomical telescopes, with a specific focus on NewAthena and upcoming missions. This research not only advances methodologies in this field but also highlights the collaborative power of XRR, XPS, and OM in providing a comprehensive understanding of thin film coatings, emphasizing the importance of pre-coating mirror quality and mitigating contamination effects throughout the optics production process to ensure optimal performance.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years