Topic/Presenter: Focal Plane Array / Jon Morse

Question/Comment: 

Need to order a Rockwell Hawaii 1RG now, even if it will cost and extra
$100K instead of $75K. Get engineering chip, too, for free. Also get
new controller electronics.  Get specifications for performance and
defects for science grade chip.

Submitted by: Bruce Gillespie


NIC-FPS Response:

A Rockwell Hawaii-1RG focal plane array with drive electronics has been
ordered. The QE spec is >65% over 1-2.45 mu (goal of >80%); the read
noise spec is <20 e- rms CDS for "slow" read mode (goal of <10 e- rms
CDS); the dark rate spec is 0.1 e-/s/pix (goal of 0.01 e-/s/pix); and
the spec for defects is >95% operability (goal of >98%). An array
flatness spec is not included but will be characterized upon cool-down
by Rockwell, and should be handled within our camera depth of focus.

An engineering grade chip is not included in the Rockwell procurement,
because they say they simply do not have engineering grade devices
floating around to give us. Nevertheless, we have contacted the NGST
project about "borrowing" one of their test H1RG's and it appears
feasible in the early-2003 time-frame when the drive electronics and
bare multiplexer are delivered.


Status: Closed