Systems Engineering 2: Blocks and Interfaces Jeff McMahon
Goal: Develop S4 as a Community •
Requires project management tools: flowdown, interface tracking, and other concepts descried in Steve’s presentation.
•
Conceptual Optimization has been presented by Akito (this top down approach could be called Proposal Engineering according to the wikipedia article on systems engineering)
•
It is time to start the development of the full S4 plan
This is a ENORMOUS undertaking. It will require all of us to work closely together.
This is a ENORMOUS undertaking. It will require all of us to work closely together. •
Primary science requirements developed as a community (in the science book and subsequent work) and will soon be codified by the CDT
•
Simulation and forecast groups transform science requirements into measurement requirements
•
Experimentalists transform measurement requirements into instrument requirements and a detailed plan
•
Iterate between these efforts to refine the design
This is a ENORMOUS undertaking. It will require all of us to work closely together. •
Primary science requirements developed as a community (in the science book and subsequent work) and will soon be codified by the CDT
•
Simulation and forecast groups transform science requirements into measurement requirements
•
Experimentalists transform measurement requirements into instrument requirements and a detailed plan
•
Iterate between these efforts to refine the design
Technology Blocks
Optical Design
Detectors
Cold Optics
Readout
•
The CMB-S4 Technology Book has already started this process
•
enumerated key technologies in the most readily developing areas
•
rated their TSL/PSL
•
started an open community discussion
•
much left to consider
Technology Blocks
Optical Design
Detectors
Cold Optics
Readout
•
what other boxes do we need?
Technology Blocks
Optical Design
Detectors
Cold Optics
Readout
Pointed Platform and Large Mirror Fab.
Cryogenics and Cryostat
Technology Blocks
Optical Design
Detectors
Cold Optics
Readout
Pointed Platform and Large Mirror Fab.
Cryogenics and Cryostat
Electronics and Data Acquisition
Technology Blocks
Optical Design
Detectors
Site
Cold Optics
Readout
Electronics and Data Acquisition
Pointed Platform and Large Mirror Fab.
Cryogenics and Cryostat
Technology Blocks
Optical Design
Detectors
Site
Sensitivity, Systematics, and Calibration
Cold Optics
Readout
Electronics and Data Acquisition
System and Optimization
Cryostat CC
Support/Module DET CC
Window Baffling CO
Sub-K Fridge
Focal Plane DET Cold Readout RO
CryoCooler
PP
DAQ
RO
Fridge Controller
OPT, PP Reflector Mount/Drive
CC
Telescope mount
Cryogenics and Cryostat
CC
Omitted DET: Detector Power Distr. RO: Readout Mech. Interface DAQ: Electronics & DAQ OPT: Optical Design PP: Pointed Platform CO: Cold Optics CC: Cryogenics & Cryostat CAL: Calibration & Systematics SITE: Site CC
Compressor
SPdA Computers DAQ
Calibrator
HK readout
PP
Cryogenics
Receiver
SQUID ctrl, Digitizer
Support
Lenses Filters Modulator
CC
Support
Pointed Platform and Large Mirror Fab.
Optics Tube CO, OPT
Telescope Foundation
OPT, PP Ground Screen
CAL Site Computers
Optical
DAQ
Thermal
Site Containers Generators
SITE
Site
Electrical Data Link
Technology Blocks
Optical Design
Detectors
Site
Sensitivity, Systematics, and Calibration
Cold Optics
Readout
Electronics and Data Acquisition
System and Optimization
Cryostat CC
Support/Module DET CC
Window Baffling CO
Sub-K Fridge
Focal Plane DET Cold Readout RO
CryoCooler
PP
DAQ
RO
Fridge Controller
OPT, PP Reflector Mount/Drive
CC
Omitted DET: Detector Power Distr. RO: Readout Mech. Interface DAQ: Electronics & DAQ OPT: Optical Design PP: Pointed Platform CO: Cold Optics CC: Cryogenics & Cryostat CAL: Calibration & Systematics SITE: Site CC
Compressor
SPdA Computers DAQ
Calibrator
HK readout
PP
Cryogenics
Receiver
SQUID ctrl, Digitizer
Support
Lenses Filters Modulator
CC
Support
Pointed Platform and Large Mirror Fab.
Optics Tube CO, OPT
CC
Telescope mount
Telescope Foundation
OPT, PP Ground Screen
CAL Site Computers
Optical
DAQ
Thermal
Site Containers Generators
SITE
Site
Cryogenics and Cryostat
goals: (1) Identify key technologies (variables) (2) Understand a interfaces and flow down requirements
Electrical Data Link
A preliminary look at Interfaces Cryostat CC
Lenses Filters Modulator
CC
DET CC
Window Baffling CO
Sub-K Fridge
Focal Plane DET Cold Readout RO
CryoCooler
PP
DAQ
RO
Fridge Controller
Reflector
SQUID ctrl, Digitizer
OPT, PP
Mount/Drive
CC
CC
Compressor
SPdA Computers DAQ
Calibrator
HK readout
Support
PP
Cryogenics
Receiver
Support/Module
Support
Optics Tube CO, OPT
Omitted DET: Detector Power Distr. RO: Readout Mech. Interface DAQ: Electronics & DAQ OPT: Optical Design PP: Pointed Platform CO: Cold Optics CC: Cryogenics & Cryostat CAL: Calibration & Systematics SITE: Site
CC
Telescope mount
Telescope Foundation
OPT, PP Ground Screen
CAL Site Computers
Optical
DAQ
Thermal
Site Containers Generators
SITE
Site
Electrical Data Link
courtesy Akito Kusaka
Obvious Systems Questions
Initial Requirements from the Science Committee •
What diameter telescope do we need?
•
What is the optical design?
•
What elevation range do we need to cover?
•
What is the cold-optical configuration? (Does more than one choice work?)
•
What is the receiver design?
•
What readout wiring is needed?
Fun for All: the entire Community is needed for systems engineering Technology blocks
Science blocks
optics design site TOD cold optics platform SZ electronics measuring r detectors sources cryogenics readout lensing system / opt. high ell systematics / sensitivity / cal sensitivity, systematic, and cost estimates
evaluation of instrument performance/ definition of requirements
CMB-S4
Backup Slides
Evaluation of Technologies based on three metrics (1) Technology Status Level (TSL) Threshold Definitions: TSL 1: Lab test of technology to show principle. TSL 2: Lab test of technology but with full feature set. TSL 3: Experiment capable version built and tested in the lab. TSL 4: Deployed in a CMB experiment and data taken. TSL 5: Data fully analyzed so systematic errors understood. (2) Production Status Level (PSL) Threshold Definitions: PSL 1: Fabrication of a TS1/TS2 prototype demonstrated. PSL 2: Fabrication of a one or more experimental capable units. PSL 3: Conceptual plan of methods for production at scale. PSL 4: Demonstrated the critical steps for production at scale. PSL 5: Capability for production at scale exists and is demonstrated. (3) Cost and Schedule: Production costs Development costs Schedule estimates
•
Metrics track risk, costs, and schedule
•
The threshold for technology selection is higher than what we have required for previous projects.
•
Initiation of development of new technologies requires a quantified need or advantage over existing options (e.g., performance, risk reduction, new capability, improved manufacture or assembly, etc.) that can be readied for S4
Evaluation of Technologies based on three metrics (1) Technology Status Level (TSL) Threshold Definitions: TSL 1: Lab test of technology to show principle. TSL 2: Lab test of technology but with full feature set. TSL 3: Experiment capable version built and tested in the lab. TSL 4: Deployed in a CMB experiment and data taken. TSL 5: Data fully analyzed so systematic errors understood. (2) Production Status Level (PSL) Threshold Definitions: PSL 1: Fabrication of a TS1/TS2 prototype demonstrated. PSL 2: Fabrication of a one or more experimental capable units. PSL 3: Conceptual plan of methods for production at scale. PSL 4: Demonstrated the critical steps for production at scale. PSL 5: Capability for production at scale exists and is demonstrated. (3) Cost and Schedule: Production costs Development costs Schedule estimates
•
Metrics track risk, costs, and schedule
•
The threshold for technology selection is higher than what we have required for previous projects.
•
Initiation of development of new technologies requires a quantified need or advantage over existing options (e.g., performance, risk reduction, new capability, improved manufacture or assembly, etc.) that can be readied for S4
Evaluation of Technologies based on three metrics (1) Technology Status Level (TSL) Threshold Definitions: TSL 1: Lab test of technology to show principle. TSL 2: Lab test of technology but with full feature set. TSL 3: Experiment capable version built and tested in the lab. TSL 4: Deployed in a CMB experiment and data taken. TSL 5: Data fully analyzed so systematic errors understood. (2) Production Status Level (PSL) Threshold Definitions: PSL 1: Fabrication of a TS1/TS2 prototype demonstrated. PSL 2: Fabrication of a one or more experimental capable units. PSL 3: Conceptual plan of methods for production at scale. PSL 4: Demonstrated the critical steps for production at scale. PSL 5: Capability for production at scale exists and is demonstrated. (3) Cost and Schedule: Production costs Development costs Schedule estimates
•
Metrics track risk, costs, and schedule
•
The threshold for technology selection is higher than what we have required for previous projects.
•
Initiation of development of new technologies requires a quantified need or advantage over existing options (e.g., performance, risk reduction, new capability, improved manufacture or assembly, etc.) that can be readied for S4
