Cosmology Instrumentation Group
Brookhaven National Laboratory

office phone: 
631.344.2114

email:
jhaupt "at" bnl.gov
justine.haupt "at" gmail.com

research






Justine Haupt


Running Debian, because if it's good enough for the International Space Station it's good enough for me.




SPIE Profile


~Professional~



LSST Test and Comissioning Cryostat
Cryostat/camera for operating 9-CCD modules of the Large Synoptic Survey Telescope's 189-CCD focal plane array. Several copies of this chamber are being produced,one of which will be installed on the telescope as the Commissionoing Camera. Uses closed loop cryogenic regrigeration systems servicing two thermal zones, one for cooling the CCD array and one for the readout electronics. CCD baseplate attaches to low thermal expansion kinematic support structure. more


LSST Accurate Star Simulator Optic (LASSO)
An f/1.2 lens that emulates the LSST for the case of a single star. The optical design is catadiaptric: A Schwarzschild Objective modified with a meniscus lens at the output, which compensates the spherical aberration introduced by a flat window as on a vacuum chamber. In appears it's similar to a Maksutov Cassegrain but is really quite different (the small mirror silvered onto the meniscus lens is the primary mirror). paper, more


Atmospheric Turbulence Simulator
Optical system that simulates the perturbing effects of the atmosphere to create an image of a star with a realistic time-varying PSF. A common apparatus for adaptive optics developers, we use this to simulate putting a sensor "on the sky". Rotating phase screens with a surface structure consistent with the Kolmogorov turbulence frequency spectrum are our atmosphere. A Thorlabs wavefront sensor measures the real-time wavefront shape. The LASSO optic (above) provides the final imaging stage. more 


In-vacuum Actuated Radioisotope Carrier (X-ray Exposure Device)
A direct drive motor that carries an Iron-55 sample on the armature. Instead of conventional windings a PCB serves as both the stator and the mechanical baseplate making it intrinsically vacuum compatible. The PCB layout software I had access to at the time wasn't well suited to making curved traces on polar coordinates, so a mechanical CAD program (Autdesk Inventor) was used to design the stator PCB, which was as labor intensive as it sounds. more 


LSST Single-CCD Test Cryostat
CCD testing cryostat in the LSST production cleanroom. Stainless steel chamber with closed loop cooling, x-ray exposure capability, and a window cover on an articulated hinge. Docks to an optical testing station. more 


Optical tunnels for flat-field illumination

When supressing stray light there is such a thing as too many baffles. Baffle edges “glint” however thin they may be and without rigorous analysis one wonders if baffles are doing more harm than good.

In the case of an optical tunnel optimized for flat field illumination there should be as few exposed baffles as possible and I make the case that a single well placed primary baffle is optimally effective. more



Universal Lab Camera
An imaging system with interchangeable lensboard, front and back focus, and an optical target holder with lateral positioning. For imaging anything onto anything, ~90% 3D printed. more 


Focal Reducer
A focal reducer concept design proposal for a 3.5m telescope. more 


Coaxial piezo-actuated tip-tilt CCDs

A concept for actuating individual CCDs in tip/tilt/piston for integration into an active optics control loop. Dummy CCD is shown. more 



Metrological Test Stand for CCD Flatness Characterization
Differntial measurement system for in-cryostat 9-CCD flatness measurement. Uses two Keyence absolute-distance laser triangulation sensors to compare the surface height of the surface under test (CCD array imaging surface) to an optical reference flat. Concept: Peter Takacs. more 

~Other~



Unnatural Creatures in a Natural Setting


Radio Astronomy at Custer Observatory

Radio Astronomy at Custer Observatory

Radio astronomy is being revived at Custer obervatory in Southold NY. The mission is twofold:
  • General access for people wanting to learn radio astronomy and for personal projects.
  • Organized research in scientific niches. Low-budget open-source efforts have the freedom to explore many interesting scientific prospects that don't get funded in the professional space.
Github project wiki:
https://github.com/CusterRadioObservatory/Main/wiki

Website (coming eventually):
custerobservatory.org/radioastronomy


Large Format 3D Printer

  • Fully enclosed and bigger than a refrigerator.
  • 24x24x30" build volume with single extruder toolhead.
  • 4X parallized printing with quad-toolhead
  • Duet control boards.
  • AC powered 5 zone heated build plate.
  • Smoke detection safety-shutdown system.
 more



Thingiverse Designs


Drive System for Celestron CG-4 Telescope Mount

Originally used a PICAXE-based controller with the factory motor kit (more) to steer a heliostat for a spectroheliograph at the solar (not sidereal) rate.

Subsequently built a faster drive system with NEMA stepper motors and an Aruino-based controller for an tracking antenna base station for long range drone and balloon flights. Most recently used as a mount for a small radio telescope. more 



Printed Expandable Developement Drone

Homebrew multicopter drones seem to become ratsnests of tape, velcro, and cable ties as components are added and removed. This is a 3D printed airframe with an accessory cage / tower structure built onto the hub. The tower, comprised of four 3mm diameter carbon fiber tubes, carry 3D printed stages to which various electronics can be attached. The modular and extensible nature of the accessory tower allow complete freedom of reconfirgurability for tinkering and development. The original PED drone was lost somewhere in Southold, NY in 2013. A new and improved version is nearly complete which I'll put it on the Thingiverse some day. original diydrones.com blog post 



3D Printed Wood That Will Make People Think You're an Idiot

After sanding, Hatchbox Wood PLA is so wood-like that if you tell people it's 3D printed they wont believe you. more



Corrected Gregorian Telescope

A Gregorian with a sub-aperture corrector for diffraction limited imaging across a .5 degree field of view and 25mm fully illuminated field. Original optical design. This has become a long term back burner project. The OTA mechanical assembly is built but I still need to have the optics made. more 



Turn your unwanted 35mm camera into an accent/spot light for $10

Cut open a Jansjo LED light from IKEA and glue it to the film pressure plate on your old SLR instead of throwing it in the garbage. more

Note: I find the death of film tragic, both for still photography and at the theater.

Message in a bottle: If anyone has a retired 35mm movie projector (w/ platter system or not) they want taken off their hands please contact me.



Single-Dish Imaging Radio Telescope

CSoftware and hardware development to do radio imaging with a single dish. This is a work in progress that will become the basis for a larger (hopefully open source) effort at the Custer Institute's radio observatory (above). This incarnation uses a HackRFOne oftware defined radio, a 3D printed patch antenna feed, a ~1m spun aluminum dish (courtesy Tom Feireabend), and modified Celestron CG4 telescope mount (above): more





~Miscellaneous~



Eastern Long Island Old Time Jam at Hallockville Farm

Come play Old Time music at Hallockville Farm, the 2nd and 4th Thursdays of every month at 7pm.

http://poc2163.wix.com/eliotmj



Optical Harvest


Bremerton Astronomy Slam: Human Interactions at a Public Observatory 


Automation and the Non-Workforce: The Future of Labor in the Robotics Age read 

IMPORTANT:
I've since come to the conclusion that the average human will sink into pervasive dissatisfaction if told they don't need to work, regardless of how ideal their living circumstances.

For a complete treatment, read the original six Dune books. 



I don't text and often don't respond to email within the first day of receipt. Take back your life and join the revolution.




~Affiliations~


Custer Institute 
Director of Radio Astronomy

Brookhaven National Laboratory 
Science Associate




Darmok and Jalad at Tanagra

W2GFO