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Senior Scientists

John Appel
Johns Hopkins Universityjappel3@jhu.edu
Research Interests: Associate Research Scientist — Development, integration and deployment of CLASS detector arrays

Charles Bennett
Johns Hopkins Universitycbennett@jhu.edu
Research Interests: Faculty — Co-Principal Investigator

Ricardo Bustos
Universidad Católica de la Santísima Concepciónrbustos@ucsc.cl
Research Interests: Faculty — CLASS project operations and engineering support

David Chuss
Villanova Universitydavid.chuss@villanova.edu
Research Interests: Faculty — Modulator and detector development; Constructing the large grids for the modulators; Developing free-space cryogenic calibrators for validating the detectors

Martin DeGeorge
Villanova Universitymartin.degeorge@villanova.edu
Research Interests: Faculty — Polarization modulator

Kevin Denis
Goddard Space Flight Centerkevin.l.denis@nasa.gov
Research Interests: Tenured Scientist — Detector fabrication lead

Rolando Dünner Planella
Pontificia Universidad Católica de Chilerdunner@astro.puc.cl
Research Interests: Faculty

Joseph Eimer
Johns Hopkins Universityjeimer1@jhu.edu
Research Interests: Associate Research Scientist — Instrumentation and analysis

Tom Essinger-Hileman
Goddard Space Flight Centerthomas.m.essinger-hileman@nasa.gov
Research Interests: Tenured Scientist — Detector and focal plane array development; Polarization calibrator design; Receiver design and construction; Filter development

Mark Halpern
University of British Columbiahalpern@physics.ubc.ca
Research Interests: Faculty — Multichannel electronics

Katie Harrington
Argonne National Laboratorykharrington@anl.gov
Research Interests: Assistant Physicist - Designed and built the first 2 VPMs; Developed machining procedures for the cryogenic plastic optics; Analysis work relating to the VPM and demodulation

Gene Hilton
National Institute of Standards and Technologygene.hilton@nist.gov
Research Interests: Tenured Scientist — SQUID multiplexing hardware fabrication

Gary Hinshaw
University of British Columbiahinshaw@phas.ubc.ca
Research Interests: Faculty — Analysis

Johannes (Hannes) Hubmayr
National Institute of Standards and Technologyhubmayr@nist.gov
Research Interests: Faculty — Providing SQUID multiplexing hardware

Tobias Marriage
Johns Hopkins Universitymarriage@jhu.edu
Research Interests: Faculty — Co-Principal Investigator

Jeffrey McMahon
University of Chicagojeffmcm@umich.edu
Research Interests: Faculty — Silicon lenses

Nathan Miller
Johns Hopkins Universitynathan.j.miller@nasa.gov
Research Interests: Research Scientist — Analysis


Lucas Parker
Los Alamos National Laboratorylparke28@jhu.edu
Research Interests: Cryogenics; Data analysis

Rodrigo Reeves
Universidad de Concepciónrreeves@astro-udec.cl
Research Interests: Faculty — Project operations and engineering support

Carl Reintsema
National Institute of Standards and Technologycarl.reintsema@nist.gov
Research Interests: Tenured Scientist — SQUID multiplexing hardware

Karwan Rostem
University of Maryland, Baltimore Countykarwan.rostem@nasa.gov
Research Interests: Research Scientist — Detector design and testing
Janet Weiland
Johns Hopkins Universityjweilan2@jhu.edu
Research Interests: Research Scientist — Analysis

Edward Wollack
Goddard Space Flight Centeredward.j.wollack@nasa.gov
Research Interests: Tenured Scientist — Detector design and testing lead

Lingzhen Zeng
Harvard-Smithsonian Center for Astrophysicslingzhen@cfa.harvard.edu
Research Interests: Research Scientist — Smooth-walled horn design
Engineers & Staff


Mandana Amiri
University of British Columbiamandana@physics.ubc.ca
Research Interests: Research Scientist — Multichannel electronics

Deniz Augusto Nunes Valle
Sociedad Radiosky Asesorias de Ingenieriadenizaugusto@yahoo.com.br
Research Interests: Field Engineer

Michael Brewer
Johns Hopkins Universitymkbrewer@jhu.edu
Research Interests: Engineer — Telescope software and pointing
Meng-ping Chang
Goddard Space Flight Centermeng-ping.chang@nasa.gov
Research Interests: Engineer — Detector fabrication

Pedro Fluxá
European Southern Observatorypafluxa@uc.cl
Research Interests: Cryogenics; Field work; Analysis
Ron Hu
Goddard Space Flight CenterResearch Interests: Engineer — Detector fabrication

John Karakla
Johns Hopkins Universityjpjk@jhu.edu
Research Interests: Engineer — Telescope mount design and fabrication; Site construction and logistics


James Rittner
Baltimore City Public SchoolsResearch Interests: Visiting Scholar

Kongpop U-Yen
Goddard Space Flight Centerkongpop.u-yen-1@nasa.gov
Research Interests: Research Scientist — Detector design
Postdoctoral Researchers

Sarah Marie Bruno
Postdoctoral Fellow
Johns Hopkins Universitysbruno3@jhu.edu
Research Interests: Experimental CMB cosmology

Sumit Dahal
Goddard Space Flight Centersumit.dahal@nasa.gov
Research Interests: Postdoctoral Researcher — Detector characterization and focal plane assembly; Manufacturing lenses and filters


Jullianna Denes Couto
Johns Hopkins Universityjdenesc1@jhu.edu
Research Interests: Postdoctoral Researcher — Field operations

Kyle Helson
Goddard Space Flight Centerkyle.helson@nasa.gov
Research Interests: Postdoctoral Fellow — Detector testing

Jeffrey Iuliano
University of Pennsylvaniaiulianoj@sas.upenn.edu
Research Interests: Instrumentation

Ivan Padilla
Johns Hopkins Universitypadilla@jhu.edu
Research Interests: Postdoctoral Researcher — Telescope structure and alignment; Data analysis

Matthew Petroff
Harvard Universitymatthew.petroff@cfa.harvard.edu
Research Interests: Postdoctoral Researcher

Duncan Watts
University of Osloduncan.watts@astro.uio.no
Research Interests: Postdoctoral Researcher — Data analysis

Zhilei Xu
Massachusetts Institute of Technologyzhileixu@mit.edu
Research Interests: Postdoctoral Scholar — Instrument development (cold optics and the mount system); Data analysis effort to calibrate the instrument
Graduate Students

Carol Chan
Johns Hopkins UniversityResearch Interests: Instrumentation

Joseph Cleary
Johns Hopkins Universityjcleary3@jhu.edu
Research Interests: Graduate — Assembling and characterizing the W2 and HF VPMs, as well as understanding their performance in the field; Manufacturing the AR-coated vacuum windows



Carolina Morales
Johns Hopkins Universitycmoral15@jhu.edu
Research Interests: Instrumentation and Analysis

Carolina Núñez
Johns Hopkins Universitycnunez4@jhu.edu
Research Interests: Graduate — Part of the CLASS detector team; Assembly and characterization of the 90 GHz and 150/220 GHz telescopes

Undergraduate Students


Stefan Arseneau
Johns Hopkins Universitysarsene1@jhu.edu
Research Interests: Instrumentation and Analysis






