TY - GEN
T1 - Balloon-borne FIREBall-2 UV spectrograph stray light control based on non-sequential reverse modeling of on-sky data
AU - Brendel, Trenton
AU - Khan, Aafaque
AU - Agarwal, Simran
AU - Choi, Heejoo
AU - Kim, Daewook
AU - Hamden, Erika
N1 - Publisher Copyright:
© 2022 SPIE.
PY - 2022
Y1 - 2022
N2 - We present a comprehensive stray light analysis and mitigation strategy for the FIREBall-2 UV telescope. Using non-sequential optical modeling, we identified the most problematic stray light paths which impacted telescope performance during the 2018 flight campaign. After confirming the correspondence between the simulation results and post-flight calibration measurements of stray light contributions, a system of baffles was designed to minimize stray light contamination. The baffles were fabricated and coated to maximize stray light collection ability. Once completed, the baffles will be integrated into FIREBall-2 and tested for performance preceding the upcoming flight campaign. Given our analysis results, we anticipate a substantial reduction in the effects of stray light.
AB - We present a comprehensive stray light analysis and mitigation strategy for the FIREBall-2 UV telescope. Using non-sequential optical modeling, we identified the most problematic stray light paths which impacted telescope performance during the 2018 flight campaign. After confirming the correspondence between the simulation results and post-flight calibration measurements of stray light contributions, a system of baffles was designed to minimize stray light contamination. The baffles were fabricated and coated to maximize stray light collection ability. Once completed, the baffles will be integrated into FIREBall-2 and tested for performance preceding the upcoming flight campaign. Given our analysis results, we anticipate a substantial reduction in the effects of stray light.
KW - Stray light analysis
KW - non-sequential ray tracing
KW - opto-mechanical design
UR - http://www.scopus.com/inward/record.url?scp=85140054175&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85140054175&partnerID=8YFLogxK
U2 - 10.1117/12.2631704
DO - 10.1117/12.2631704
M3 - Conference contribution
AN - SCOPUS:85140054175
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Ground-Based and Airborne Telescopes IX
A2 - Marshall, Heather K.
A2 - Spyromilio, Jason
A2 - Usuda, Tomonori
PB - SPIE
T2 - Ground-Based and Airborne Telescopes IX 2022
Y2 - 17 July 2022 through 22 July 2022
ER -