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Click Here to View Item 19870710-CDL-IvyRd.jpg

Charlottesville Staff Working on VLBA, 10 July 1987

Start Date:1987-07-10 Location:Charlottesville, VA People:Garland, James Crawford, Marshall Morris, Greg Escoffier, Ray Kellermann, Kenneth I. Thompson, Richard Dowd, Andrew Taylor, Garnett Pospieszalski, Marian Luckado, Lucky Wireman, Bill Johnson, Francoise Horner, Neil, Jr. Thach, Karen Dillon, Matt Weinreb, Sander Liu, Z.-Y. Harris, Ron Bailey, Nancyjane Shepherd, Amy Spaulding, Gene	Creator:Records of the NRAO Series:Photographs Series Unit:Employees Unit Type:Still Image Subject:Employees Instruments--Very Long Baseline Array (VLBA)	Description:Initial construction funding for the VLBA was received in May 1985. Charlottesville staff working on VLBA gather on the front steps of the Central Development Lab's Ivy Rd. building on 10 July 1987. Left to right - far back: James Garland, Marshall Crawford, Greg Morris; second back: Ray Escoffier, Ken Kellermann, Dick Thompson, unidentified UVA student, Andrew Dowd, Garnett Taylor; middle: Marian Pospieszalski, Lucky Luckado, Bill Wireman, Francoise Johnson, Neil Horner, Karen Thach, Matt Dillon; front: unidentified UVA student, Sandy Weinreb, Z.-Y. Liu, Ron Harris, Nancyjane Bailey, Amy Shepherd, Gene Spaulding. [show more]

Click Here to View Item MAP-team-1996-enh.jpg

NRAO Electronics, 1996

Start Date:1996 Location:Charlottesville, VA People:Webber, John Wollack, Ed Bailey, Nancyjane Lakatosh, Bill Thacker, Skip Pospieszalski, Marian	Creator:Records of the NRAO Series:Photographs Series Unit:Electronics, Computers and Equipment Unit Type:Still Image Subject:Electronics Tags:women	Description:NRAO's MAP team in 1996: l. to r. John Webber, Ed Wollack, Nancyjane Bailey, Bill Lakatosh, Skip Thacker, and Marian Pospieszalski. In June 1996 NASA contracted with NRAO to design and build amplifiers for the Microwave Anisotropy Probe (MAP), later renamed the Wilkinson Microwave Anisotropy Probe (WMAP) after Dr. David Wilkinson, a member of the science team and pioneer in the study of cosmic background radiation. The WMAP satellite mapped the temperature of the background sky in five spectral bands with an angular resolution of 0.3 degrees and sensitivity of 20 microKelvins/pixel after a 9-year mission (Sept. 2001 – August 2010). These measurements have helped to secure rigorous constraints on the origin, content, age, and geometry of the Universe. The MAP team produced total of 120 space qualified amplifiers covering five frequency bands: 20-25, 28-37, 35-46, 53-69, 82-104 GHz. The team worked full tilt on production for several years, and the entire CDL celebrated on 23 October 1999 when the last of 120 amplifiers were shipped. Other MAP team participants not included in the photo: Tod Boyd, Ron Harris, Greg Morris, Gerry Petencin and Bill Wireman; machine shop support came from Tony Marshall, Garnett Taylor, and Matt Dillon, and plating support from Vince Summers. [show more]

Click Here to View Item NancyjaneBailey-aug1993.jpg

Working with a Dewar in the Central Development Laboratory in Charlottesville, VA, August 1993

Start Date:1993-08 Location:Charlottesville, VA People:Bailey, Nancyjane	Creator:Records of the NRAO Series:Photographs Series Unit:Electronics, Computers and Equipment Unit Type:Still Image Subject:Instruments--12 Meter Telescope Facilities--Charlottesville, Virginia Employees Electronics Tags:women	Description: In the Central Development Laboratory in Charlottesville in 1993, NRAO engineer Nancyjane Bailey, works with the dewar used to test the superconducting SIS receivers (the so-called "rockets") for NRAO's 12 meter telescope at Kitt Peak, AZ. Nancyjane oversaw the construction of all the rockets for the 1.3, 2, and 3-mm bands on the 12 meter telescope -- 17 rockets in all including spares, a major accomplishment. One receiver used 8 of the 230 GHz (1.3-mm) rockets, and another receiver held 2 rockets for each of the three bands. At one point, there was an implosion of one of the dewar vacuum windows, which caused substantial damage to the internal copper heat shield and one of the rockets. The vacuum window was subsequently redesigned. All the SIS mixers for the 12-m telescope (and later for ALMA Bands 3 and 6) were designed in the CDL by Tony Kerr and Shing-Kuo Pan and fabricated in Arthur Lichtenberger's lab at University of Virginia. [show more]