Design and simulations of a short optical baffle for the Lightweight Asymmetry and Magnetism Probe (LAMP)

Yujie Xing; Zhanshan Wang; Wenbi Li; Jun Yu; Hua Feng

doi:10.1117/12.2272077

29 August 2017 Design and simulations of a short optical baffle for the Lightweight Asymmetry and Magnetism Probe (LAMP)

Yujie Xing, Zhanshan Wang, Wenbi Li, Jun Yu, Hua Feng

Author Affiliations +

Proceedings Volume 10399, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII; 103990K (2017) https://doi.org/10.1117/12.2272077
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

The Lightweight Asymmetry and Magnetism Probe (LAMP) is a micro-satellite based mission concept for soft X-ray polarimetry at 250 eV with a large aperture but a short focal length. Due to the very low energy response of the gas pixel detector (GPD) used in LAMP, the stray light must be extremely attenuated. However, a long baffle is not favored for the micro-satellite with a limited geometry. In this paper, we propose a novel design having a short optical baffle but with high efficiency suppressing stray lights. For the optical aperture with a diameter of 700 mm used in LAMP, a short baffle of just 150 mm long can reduce the solar stray light by a factor better than 10^-4 at the incidence angle larger than 60°, which is verified by simulations with TracePro ray-tracing software. This design meets the requirement for LAMP and the design concept should be helpful for other optical/UV/X-ray telescopes.

Conference Presentation

Citation Download Citation

Yujie Xing, Zhanshan Wang, Wenbi Li, Jun Yu, and Hua Feng "Design and simulations of a short optical baffle for the Lightweight Asymmetry and Magnetism Probe (LAMP)", Proc. SPIE 10399, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII, 103990K (29 August 2017); https://doi.org/10.1117/12.2272077

ACCESS THE FULL ARTICLE

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