W6C1

Output waveform (A-amp)

Measured Characteristics

Readout noise	1.95 [e] T_int = 8µs (hist)
Parallel CTE	0.999999 at -65ºC 0.999998 at -98ºC
Serial CTE	0.999997 at -65ºC 0.999997 at -98ºC 0.99993 at -131ºC
Dark current	10.7 e/pixel/hour at -98ºC
Dead column	None !
Full well(3%)	ND
Quantum Efficiency	ND

	Setting up bias mf_bias.dac
	Clock pattern definition Basic mode: (for Amplifier A) spv.ascii cpg.ascii

	Images(gzipped FITS file) Fe55 Image (T_int=0.8µs C.F.= 1.35 e/ADU R.N.= 3.52e  T=-65ºC Histogram) Fe55 Image  (T_int=0.8µs C.F.= 1.36 e/ADU R.N.= 3.15e  T=-98ºC Histogram) Fe55 Image (T_int=0.8µs C.F.=1.44 e/ADU R.N.=3.48 e  T=-134ºC Histogram) The temperature is too low that the serial CTE became worse. Fe55 Image (T_int=8µs C.F.=0.14 e/ADU R.N.=1.95 e  T=-134ºC Histogram) Input to ADC reaches half of the dynamic range as shown here. Need to change the circuit paramters such as offsets bias level. This image shows poor serial CTE because of low temperature. 4 hour dark image (T = -134ºC   C.F.=0.14 e/ADU) GIF Image 3 hour dark image (T = -129ºC   C.F.=0.14 e/ADU )GIF Image Unused B-amplifier (right side) glows. VRD for B was set at +10 instead of regular +12.5 during the exposure. This may causes the glow. 350 nm 960 nm
	Graphs Integration time of CDS vs. read noise (excel file) Drain bias vs. read noise (excel file) Fullwell (excel file) Quantum Efficiency (excel file)
	Notes Lick observatory tested the device. (See the report) Pulse shape which causes white spots Dark current looks  high. It might be due to the spurious charge. Need to check different dark time. Serial CTE gets worse at T=-131C but fairly good at T=-98C.