Pre-flight calibration of LYRA, the solar VUV radiometer on board PROBA2

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Volume 508 / No 2 (December III 2009)

A&A, 508 2 (2009) 1085-1094

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Table 3:

Example of the expected LYRA total output signals (nA) and purities (%) between brackets. Since not the entire IR spectrum is taken into account, these values rather represent a lower limit.
ch.#	Filter label	Bandwidth, nm	detector	Min. Signal (pur.)	Max. Signal (pur.)	Max. Signal /Min. Signal
Unit 1
1-1	Lyman- $\alpha$ [XN]	120-123	MSM12	0.283 (26%)	0.340 (33%)	1.20
1-2	Herzberg	200-220	PIN10	10.918 (83.7%)	11.710 (83.8%)	1.07
1-3	Aluminium	17-80	MSM11	0.054 (86.7%)	2.079 (7.0%)	38.50
1-4	Zirconium	6-20	AXUV-20D	0.085 (91.4%)	5.373 (14.1%)	63.21
Unit 2
2-1	Lyman- $\alpha$ [XN]	120-123	MSM21	0.100 (25.7%)	0.119 (32.8%)	1.19
2-2	Herzberg	200-220	PIN11	11.690 (83.8%)	12.512 (83.9%)	1.07
2-3	Aluminium	17-80	MSM15	0.049 (88.8%)	1.745 (7.8%)	35.61
2-4	Zirconium	6-20	MSM19	0.012 (86.1%)	0.787 (12.5%)	65.58
Unit 3
3-1	Lyman- $\alpha$ [N+XN]	120-123	AXUV-20A	0.269 (32.5%)	0.317 (42.1%)	1.18
3-2	Herzberg	200-220	PIN12	9.389 (83.5%)	10.055 (83.6%)	1.07
3-3	Aluminium	17-80	AXUV-20B	0.907 (91.8%)	16.701 (16.1%)	18.41
3-4	Zirconium	6-20	AXUV-20C	0.087 (89.4%)	5.375 (14.1%)	61.78

Source LaTeX | All tables | In the text

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