Basic Parameters
• 36 2048x4608 13.5micron pixels
(e2v ccd42-90)• 0.08”/pixel, currently binned by 2 to 0.16”• 200kps through 72 amplifiers• 2 additional ccd42-90s for guiding/focus• SAO-built controller by John Geary
Megacam Performance
• Gain: 3-4 e-/ADU
• Read noise: 4-5e- at 200kHz
• CCD Temps: -115C to -130C depending on focal plane location
• Some large scale flat fielding errors
Quantum Efficiency
0
10
20
30
40
50
60
70
80
90
100
350 450 550 650 750 850 950
Wavelength (nm)
Percent
Specification
00014-02-03
00014-05-05
8434-18-05
00014-06-03
8434-12-03
8434-12-05
9283-10-04
8352-09-04
8351-02-04
00091-20-03
00091-09-03
00101-01-05
00014-10-05
00014-20-04
00184-05-03
00014-10-03
00184-17-05
00014-10-04
00184-05-04
00184-16-04
00184-08-03
00183-01-03
00183-01-04
00184-14-05
00184-16-03
00184-16-05
00091-05-04
00091-16-05
00183-03-04
00091-05-03
00091-02-04
00237-02-04