MONSOON Image Acquisition System

Peter Moore(1) and Gustavo Rahmer(2)

(1) National Optical Astronomy Observatory (2) Cerro Tololo Inter-American Observatory

“Rain drops keep falling on our heads”

The MONSOON development program continues and we report on the current status of, and the future plans for this project.

The Forecast : Warm deluges of success with some cold showers of reality

Taking a photon shower

Not enough time to catch all the photons we need !

Big instruments – Big focal planes

More photons !! UV – VIS – NIR – MIR.

MONSOON designed to accommodate these requirements

So; where is MONSOON ?

350

1050

2500

1000

1100

400

DES - DECAM

62 Det. 124 Ch.

550 Mpixels

17 Sec. Readout

On sky 2009

NOAO - NEWFIRM

4 Det. 256 Ch.

16 Mpixels

0.5 Sec. Readout

On sky 2006

WIYN – QUOTA/ODI

4/64 Det. 32/512 Ch.

64/1024 Mpixels

2 Sec. Readout

On sky 2007/2009

Where we’re at:

Performance

DETECTORTYPE

SYSTEMGAIN

SYSTEM NOISE

PIXEL RATE

LIN. DYNAMIC RANGE

TOTAL NOISE

VIS STA 05106

3μv/ADU2.7 ADU

rms.350

KPix/Sec< 0.1%

INL18 Bit

1:2621445 e- rms.10 ADU

NIR ORION2.5415μv/ADU

1.3 ADUrms.

132Kpix/Sec

< 0.1%INL

16 Bit 1:65536

12e- rms.4 ADU

VIDEO CHANNEL PERFORMANCE – To Date

SYSTEM NAME

VIDEO COUNT

BIAS COUNT

CLOCK COUNT

PIXEL RATE

POWER DELIVERY

VIS CCDLab 8 44 324

MPix/Sec37 Watts Dec 2004

NIR NEWFIRM 256 88 6433

MPix/Sec192

WattsMay 2005

VIS DeCam 124 176 12831

MPix/Sec274

WattsApr 2007

SYSTEM PERFORMANCE

Common tech. large,/small/VIS/IR

DHE HARDWARE

FIRMWARE

COMMUNICATIONS

DETECTORS

SINGLE DETECTOR

S

ARRAYS OF DETECTOR

S

VISIBLE DETECTOR

S

IR DETECTOR

S

APPLICATIONS

SOFTWARE

PHOTONS IN

(MUCH) DATA OUT

ICD 1.x

ICD 8.xICD 7.xICD 6.x

ICD 4.x

ICD 6.x

Soft/hard Status

MEC

MONSOON ENGINEERING

CONSOLE

GPX

GENERIC PIXEL SERVER

SUPER

MONSOON SUPERVISOR

LAYER

DHI

DATA HANDER INTERFACE

PPX

PAN CAPTURE

PAN PROCESS

PAN SAVER

TOOLSET

CONFIGURE TOOL

IN PROGRESS

BETA TESTING

RELEASED

RELEASED

RELEASEDIN

PROGRESS

ICD 4.0

CCDACQ

8 CHAN CCD ACQ. BOARD

AUGUST 05

IRACQ

36 CHAN IR ACQ. BOARD

RELEASE C

CLK-BIAS

CLOCK & BIAS BOARD

RELEASE C

MCB

MASTER CONTROL BOARD

RELEASE B

ICD 1.0

ICD 7.0

CCD ACQ. TRANSITION

BOARD

RELEASED

IR ACQ. TRANSITION

BOARDS

RELEASED

CLOCK & BIAS TRANSITION

BOARDS

RELEASED

ICD 6.x

- HARDWARE -- SOFTWARE -

DATA

ICS

ICD 8.xDETECTO

R

Cold shower .. Cut and paste

Cold shower #1: - CCD Front End - cut and paste:

CDS

BIAS

CPLD

FPGA

Requirements set August

2003

First Prototype produced

July 2004

Testing and ECO completed

June 2005

First production Boards August

2005

Functionality good, but performance takes time.

8 Video Channels/Board

18 Bit Dynamic Range

800 KPix/Chan/Sec

p & n Channel Devices

32 HV Biases (+/- 35 V)

32 Bit DOP

This is an Open License Agreement that allows you access to the complete technical information available for MONSOON. You must, for legal peace of mind, agree to the terms of this license.

Essentially, by clicking the "Accept" button at the foot of this page, you agree to make any contributions you may make to the MONSOON technology available to others without hindrance and surrender all rights to patent claims to any of the covered technology - including the original source.

In addition, the license explicitly absolves NOAO from any warranty or liability for the use of, or fitness of purpose for, MONSOON technology.

The good news is that the license doesn't stop you from using (or abusing) the technology, or building systems from the information, or even making a dollar from supplying this technology to others.

In fact you are encouraged to do all of these things !

Open Source Release – November 2004

Open Source Release

Accept

What you get !!

http://www.noao.edu/ets/monsoon/

Source Documents User Documents

Architecture DocumentsHardware Software Firmware

Circuit Schematics

PPX Source Tarball under CSV

Complete Source Zipballs

HW User Manuals

Functional & Performance Requirement

Circuit Descriptions

Compile / Install Guide Docs

Project Containers

Software Description

System Architecture

PCB Layouts Engineering Console

Test Benches HW Test procedures

Interface Control Docs

PCB Assembly

Configuration Toolbox

Load Modules HW Board Test results

Bill of Materials

Sequencer Tools

Front Panel Templates

Technical Documentation

Cold shower Collaborations !!

DES : DeCam• 12 Channel CCD Video Board• Firmware Development

MONSOON

- Collaboration History -

QUOTA /ODI• Hardware Test and Dev.• Firmware Dev.• Guide + Science Software Dev.

Cold shower #2: - Each ‘collaboration’ effort requires explicit support which in turn, requires resources.However, collaborations that ‘stick’ are very productive !

WHIRC• Sequencer Code Dev.• Detector (Virgo) Interface

NOAO

UIUC / FERMILA

B

MONSTEROID

WIYN

STSci

LSST

New Toys – The future

HIGHER DENSITY

LESS POWER

TORRENTRequirements

established February 2005

Motivation:

1). Replace unreliable, high maintenance, or obsolete CCD controllers.

2). Unify detector controller architectures to reduce maintenance burden.

3). Apply to new instrumentation without risk of ‘single source’ components.

REPACKAGED

LOWER COST

MONSOON

‘GREEN’Requirements established March 2004

OPEN SOURCE

& IN SERVICE

MONSOON

‘ORANGE’Requirements established May 2002

DECam NEWFIR

M

ODI

…

+ 11 OTHERS

Photons keep falling on our heads,

And we don’t have a cheap detector to catch them all,

Crying just won’t help,

The challengeis Rockwell

or Raytheonto show us

how do it in … SDW2008 !

to

Aren’t we just so happy about MONSOON?

So happy we could sing about it !!All together now

…

for

Getting Wet !!

The last word: An opportunity to take a MONSOON together !

http://www.noao.edu/ets/monsoon/home/contact/

Courtesy: National Park Service, US Dept. Interior