Observations of Pt-Ne hollow cathode lamps similar to those used on the Cosmic Origins Spectrograph: spectroscopy and air testing

Gillian Nave; Craig J. Sansonetti; Florian Kerber; Steven V. Penton; Michael R. Rosa

doi:10.1117/12.789147

15 July 2008 Observations of Pt-Ne hollow cathode lamps similar to those used on the Cosmic Origins Spectrograph: spectroscopy and air testing

Gillian Nave, Craig J. Sansonetti, Florian Kerber, Steven V. Penton, Michael R. Rosa

Author Affiliations +

Proceedings Volume 7011, Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray; 70113L (2008) https://doi.org/10.1117/12.789147
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

We report accelerated aging tests on three Pt/Ne lamps from the same manufacturing run as lamps installed on the Cosmic Origins Spectrograph (COS). Initial radiometrically calibrated spectra were taken for each lamp at the National Institute of Standards and Technology (NIST). One lamp was aged in air at NIST at a current of 10 mA and 50% duty cycle (30 s on, 30 s off) until failure. Calibrated spectra were taken after 206 h, 500 h, 778 h, 783 h and 897 h of operation. Two other lamps were aged by the COS instrument development team in a thermal vacuum chamber, with calibrated spectra taken at NIST after 500 h of operation. In all three lamps, total output dropped by less than 15 % over 500 h. We conclude that the lamps will satisfy the requirements of COS in both lifetime and spectral stability.

Citation Download Citation

Gillian Nave, Craig J. Sansonetti, Florian Kerber, Steven V. Penton, and Michael R. Rosa "Observations of Pt-Ne hollow cathode lamps similar to those used on the Cosmic Origins Spectrograph: spectroscopy and air testing", Proc. SPIE 7011, Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray, 70113L (15 July 2008); https://doi.org/10.1117/12.789147

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