Near Infrared Camera
from MASSachusetts.
The image above shows the complete NICMASS system.
The liquid nitrogen cooled
dewar
at right contains a NICMOS3 (256x256 HgCdTe)
infrared array.
The box on the side of the dewar houses a microcomputer and
electronics
which control the array readouts. The dewar contains a 12-position
filter wheel which contains
three broadband and eight narrowband interference filters.
The 80486-based computer at left contains
a custom data receiver expansion board which collects serial data
produced by four 14-bit analog-to-digital converters
controlled by the microcomputer. The 80486 computer initiates
frame starts in the camera microcomputer via an RS232 connection
and then waits for data to stream back into the custom
data receiver board. The resulting
images are displayed on the
PC screen. The system is used locally at the 0.4m Whately Observatory as well as at a
number
of Western sites including the
Michigan-Dartmouth-MIT Observatories and 0.9m Coude Feed
Telescope
at Kitt Peak.
NICMASS image gallery.
NICMASS User's Manual.
Last Update: 7/28/1996