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 Physics News


 Graduation 2014

Physics Graduates 2014

Zach Santonil, Jack Bredemann, Matt Melendez, Elizabeth Sizemore, Nick Hedlesky, Aaron Stolle, and Stan Tinsley graduated on May 18, 2014.  We wish our graduates well as they move forward in life.

2015 Seniors Will Spend the Summer Completing Research Projects 



 3-D Printer Presents Opportunities for Student Projects 

3D printer
 
 
Aaron Mebane uses the department's 3-D printer to build optics components, toys, and other interesting objects.
 
 
 
 

Stipes Elementary STEAM Day - May 16, 2014!

 

Stipes Elementary Career Day

Students at Stipes Elementary observe Ne spectral lines.

University of Dallas outreach to Stipes Elementary provided many 5th graders with an opportunity to investigate energy and energy production.  Students observed electromagnetic induction, electric generators, hydroelectric and nuclear power generation (the latter two through Youtube!).


 Sigma Pi Sigma Induction 2014

SPS Induction 2014

 

Ten physics majors and students concentrating in physics were  induced into the physics honor society Sigma Pi Sigma on May 9, 2014.  First row: Luke Pecha, Michael Hoff, Olivia LaFond, Jack Bredemann, and Laura Aumen.  Second row: Dr. Hicks, Thaddeus Howard, Anthony Kersting, Samuel Henderson, and Dr. Olenick. Not shown are Laura Downes and Adam Collard.


 
Texas APS Talks Spring 2014

 

Observations and Modeling of Two New W UMa Stars

by Nick Hedlesky  

nickhedlesky

W Ursae Majoris (W UMa) binary stars are important in the investigation of the evolution of close contacting binary stars. We present the discovery of two new W UMa binary stars in the boundary between the Lyra and Hercules regions: USNO-­‐B1.011159-­‐0266370 and 1154-­‐0266276. Using time sequenced differential photometry and PHOEBE we determined the characteristics and classifications of systems and created a preliminary models, which will be presented.  

Blazhko Effect in a Newly Discovered and a Known RR Lyrae Star

by Matthew Melendez

Studies of RR Lyrae stars provide insight into the pulsation processes of variable stars. Several RR Lyrae stars were observed in a wide angle search for extrasolar planets in the boundary between Hercules and Lyra. We present observations of a newly observed RR Lyrae star, USNO1138-0264690, as well as a new perspective on a known RR Lyrae Star, LW Her. Variations in the period and amplitude of RR Lyrae stars, known as the Blazhko effect, were observed found in these stars. The data, analysis, and preliminary dynamical systems modeling of the Blazhko effect in these stars will be presented.

Both projects were completed in collaboration with Dr R. P. Olenick, Mr. Arthur Sweeney, Thaddeus Howard, and Anthony Kersting. 


 UD physics major Zach Santonil and chemistry major Aaron French completed gamma-ray measurements at the University of Kentucky over winter break (Jan. 4-17, 2014).  Shown below are the two students with the UK accelerator engineer, Gene Baber, changing the rf ion source on the model CN 7 MV Van de Graaff accelerator.

      aaron and zach at UKaaron zach terminal

aaron and zach accelerator
Aaron and Zach (2014)

UD Affiliate Professor Jacob Moldenhauer Presented his Research at the 
 
27th Texas Symposium on Relativistic Astrophysics – Dallas, TX – Dec. 8-13, 2013
Interactive Cosmological Modeling Tools with Easy Java Simulations

Jacob Moldenhauer (University of Dallas), Larry Engelhardt (Francis Marion University)

We present essential interactive simulations that enable testing of a general spectrum of cosmological models. These Easy Java Simulation based programs utilize genuine data sets obtained from various observational surveys and quantitative comparison routines to produce results. The software collection provides a means of combining plotting features and parameter manipulation in a single package. Versions of the programs have been designed for educators and researchers alike. These programs can be found at Compadre Open Source Physics website, i.e. http://www.compadre.org/osp/items/detail.cfm?ID=12406.


 

fall2013apsmeeting

 

Texas APS Presentations Fall 2013

Three UD physics majors - Jack Bredemann, Elizabeth Sizemore, and Sam Henderson - presented their summer research results at the Fall meeting of the Texas Section of the American Physical Society.   The abstracts from their talks are given below

 


Methodologies for Analyzing Motion Data in Humans

 

Elizabeth Sizemore, Department of Physics, University of Dallas

Claire Sexton, Carey Davies, Anne Almeda, and Stephen Slaughter, Department of Biology, University of Dallas

Inertial measurement units (IMUs) are used to acquire acceleration, rotation, and magnetic field data in three dimensions. When attached to individual body segments these devices can wirelessly stream this data to computer workstations for analysis. The patterns seen can then be used to evaluate relative movements. In this study, rotation at the knee was analyzed by devices worn on the leg and thigh. Gait was studied over dissimilar surfaces, including flat, railroad ballast, and stairs. Image density, neural network, and fractal analysis techniques were employed to evaluate acquired data. Imaging software contributed to the quantification of rotation data in the X and Z axes. Error propagation neural networks create heuristic problem solvers that excel at analyzing non-linear relationships and capturing associations within a set. Fractal analysis gives us terms to express the degree of self similarity, which was applied to the different surface data. Determinations from these techniques will be presented. 


 Using RPC Data to Assist CSC Data when Dealing with Pt Assignment

 John BredemannDepartment of Physics, University of Dallas

Ivan Furic and Matthew Carver, Department of Physics, University of Florida

The Compact Muon Solenoid's (CMS) two main detectors used in the endcaps, the CSC and RPC, are positioned closely together [1]. This means that, while the RPC's main function is one of time synchronization and the CSC's is one of precise position measurement, the former may be able to be used as a supplement to the latter's data when assigning the momentum value (Pt) to a muon passing through the two detectors. Using the RPC's positions variable (Phi), a comparison was made between it and the CSC's Phi reading in order to determine whether there was sufficient correlation between them to use the RPC's data where the CSC has gaps. Preliminary results on this analysis will be presented.

 [1] Wotschack, Joerg (CERN), ATLAS Muon Chamber Construction Parameters for CSC, MDT, and RPC chambers, ATL-MUON-PUB-2008-006, (2009)


Studies of neutron scattering off 54Fe with monoenergetic neutrons at 3 and 4 MeV 

 Samuel Henderson, Leslie Sidwell, and Sally Hicks, Department of Physics, University of Dallas

 Jeffrey Vanhoy, Evaristo Garza, and Joshua Steves, Department of Physics, United States Naval Academy

Marcus McEllistrem, Ben Crider, and Tim Ross, Department of Physics and Astronomy, University of Kentucky

Erin Peters, Francisco Prados-Estevez and Steven W. Yates, Department of Chemistry, University of Kentucky

Accurate and precise neutron scattering data from 54Fe and other structural materials in the fast neutron energy region are essential for the optimization of current and future fission reactors. Neutron scattering and absorption by Fe affects the ideal operating parameters for the nuclear fission process and also affects the overall efficiency of the nuclear reactor. While neutron elastic cross sections for 54Fe at incident neutron energies between 3 and 4 MeV have been previously measured, the previous experiments tended towards larger error in the elastic, and there is a significant dearth of experimental data for the inelastic states. Neutron elastic and inelastic differential scattering crosssections of 54Fe have been measured at the University of Kentucky Accelerator Laboratory at the fast neutron energies of En=3 MeV and 4 MeV. Results from our measurements and comparisons to evaluated cross sections from the National Nuclear Data Center will be presented.



 Graduation 2013

Physics Grads 2013

Congratulations to our 2013 graduates - Jeff Schniederjan, Matt Heuser, Laura Downes, Jessie Girgis, Leslie Sidwell, James Meier, Adam Collard, and Brett Combs.  


 

Five UD senior physics majors presented talks on their research at the Spring Meeting of the Texas Section of the American Physical Society Meeting at Tarleton State University, April 4-6, 2013.  A sixth senior presented her research results at the South Central Undergraduate Women in Physics 2013 Conference held at UT, Austin January 18–20, 2013.  A seventh presented her research at the Southwest Theoretical Chemistry Conference at TX A&M on October 26-28, 2012, and the eight senior presented her research at the North Texas Life Science Research Symposium, November 3, 2012, University of North Texas Health Science Center, Ft. Worth, TX.  Nice job seniors!


Graphitic Carbon Nitride Fabrication 


Adam Collard

Adam Collard, University of Dallas, Yancen Li and Joel Therrien, University of Massachusetts, Lowell

Abstract: Single atom thickness carbon nitride sheets have been predicted as good high speed semiconductors. However, it is difficult to synthesize large continuous single layer sheets. Although large amorphous multilayer sheets can be produced easily, single layer sheets require a precise deposition method and solution. We synthesized the carbon nitride at the University of Massachusetts Lowell in the Center for High-rate Nanomanufacturing.  Synthesis starts by depositing solutions on silicon wafers using various deposition methods. Wafers are then baked in an ultrahigh purity argon environment where ammonia is removed thereby transforming the chemical deposit of Dicyandiamide into carbon nitride. After baking samples they are tested with Raman Spectroscopy and Atomic Force Microscopy. Single atom thickness samples are then patterned using negative photoresist lithography and coated with aluminum. Excess aluminum is removed and the samples are probed to test band gap and resistivity. Difficulties were encountered in finding a good solvent, proper concentration, and deposition method that worked. The synthesis techniques, solution types, baking specifications, characterization techniques, and results will be presented. 


jeffmattjames
STEXT TEAM

Evaluation of Two Transit Algorithms


Matt Heuser, Richard Olenick, Arthur Sweeney, James Meier, Jeff Scheiderjan, University of Dallas STEXTS Team

Abstract: Crucial in the data pipeline for transit searches are dependable algorithms which hunt for transits in accumulated light curves. We used C++ versions of EEBLS (Edge Enhanced Box Least Squares) and QATS (Quasi Automated Transit Search) algorithms to search for possible transits in the STExT group database of light curves of approximately 2500 stars. The outputs of these two programs were compared and a list of potential binary candidates was determined. We will compare the algorithms and discuss possible candidates for transits.


Calculations for Two New Binaries and V1097 Herculis
 

James John Meier, Richard Olenick, Arthur Sweeney, Jeffrey Schniederjan, Matthew Heuser, University of Dallas, STEXTS TEAM

Abstract:  We report the results of time-resolved CCD photometry of two new binaries and V1097 in the constellation Hercules. Our observations were carried out using a six-inch, wide angle lens astrograph with a set focal length of 200 mm, three-degree field of view and f/1.5 stopped down to an f/2.8 in Pitkin, Colorado in the R band for 35 nights during the early summer of 2012. We exposed each image for one minute and took 300 images per night, obtaining 10,500 images in total. Using Peranso software, Lomb-Scargle period analysis was carried out for the binaries. We will present the O-C calculations for the two new binaries, GSC 2087- 0364, GSC 2083-1870 as well as for V1097 Her. 


  Modeling of Three New Binaries in Hercules

Jeffrey Schniederjan, Richard Olenick, Arthur Sweeney, James Meier and Matthew Heuser, University of Dallas, STEXTS TEAM

Abstract: We report the results of modeling of three new binaries in Hercules discovered through time-resolved photometry by the Small Telescope Exoplanet Transit Search (STExTS) project. Observations were made with a 200 mm astrograph f/1.5 stopped down to an f/2.8 in the R band over a period of seven weeks in summer 2012 in Pitkin, CO. A total of 10,500 calibrated images and PHOEBE were used to model the light curves of the newly discovered binaries GSC 2087-1870, GSC 2083-1875, and GSC 2087-0364. The binaries' parameter and classifications will be presented. 


lesliebrett 
 
Elastic and Inelastic Neutron Scattering
Cross Sections on 23Na


L. Sidwell, B. Combs, S.F. Hicks, University of Dallas, J.R. Vanhoy, United States Naval Academy, E.E. Peters, B.C. Crider, A. Kumar, M.T. McEllistrem, F.M. Prados-Estevez, S.W. Yates, University of Kentucky

Abstact: Elastic and inelastic neutron scattering differential cross sections from 23Na, useful in certain fission reactor applications, were measured using the neutron scattering and detection facilities at the University of Kentucky (UK) in June of 2012. A pulsed proton beam was accelerated using the 7-MV Van de Graaf accelerator, and neutrons were produced using the 3H(p,n)3He source reaction, which occurred when the proton beam was incident on a tritium cell at the end of the beam line. The  neutrons were scattered off a 23Na sample and detected by a C6D6 liquid scintillation detector using pulse shape discrimination and time-of-flight methods. Angular distributions of scattered neutrons were measured for incident neutron energies of 3.20 and 3.40 MeV. These incident neutron energies were chosen because they are of interest for reactor applications and because few previous measurements exist in this region. As the result of data analysis performed at the University of Dallas, the elastic and inelastic neutron scattering differential cross sections on 23Na were determined for the 3.20 and 3.40 MeV incident neutron energy measurements. Results from this analysis and comparisons to evaluated nuclear data predictions for these cross sections will be presented. 
1This work was supported by the Department of Energy, through the NEUP Program, and by the Cowan Physics Fund at the University of Dallas.


UD senior physics major Brett Combs presented the results of her summer 2012 research at the South Central Undergraduate Women in Physics 2013 Conference held at UT, Austin January 18–20, 2013.  Brett studied neutron scattering from Na-23 as her senior thesis research.

BrettCombsPhysics


Two UD physics majors give talks over their summer research during the Fall 2012 semester.  Here are their abstracts:


Dispersion-Corrected Rung-3.5 Density Functionals

Jessie GirgisJessie Girgis

Abstract: Density functional theory (DFT) is a method used to approximate molecular electronic structure. Weak dispersion (van der Waals) interactions are important in many chemical processes, and not well approximated by standard DFT approximations. These chemical processes can be treated by adding an empirical dispersion correction to standard DFT methods. We tested an empirical dispersion correction for some standard DFT methods, and for new 'Rung 3.5' DFT approximations. We used benchmark calculations on noble gas dimers to fit an adjustable parameter in the dispersion correction, as well as parameters in the 'Rung 3.5' functionals. We then tested the parameterized methods for standard sets of accurately known gas-phase small molecule interaction energies (hydrogen bonds, charge-transfer, and so on). We conclude that dispersion corrected 'Rung 3.5' functionals are as accurate as standard dispersion-corrected DFT for weak interactions.

Presented at the Southwest Theoretical Chemistry Conference at TX A&M on October 26-28, 2012



Poison Pill: Using a Blocked Mutant to Study Microtubule Dynamics

Laura Downes

 

Abstract: Microtubules are dynamic cytoskeletal polymers that have critical roles in intracellular organization and chromosome segregation. Microtubules display 'dynamic instability', switching apparently randomly between phases of growing and shrinking. Despite years of study, the molecular details underlying catastrophe-the switch from growing to shrinking-remain largely unknown. One cause of this persistent lack of understanding is the inability to use site-directed αβ-tubulin as a way to modulate and understand dynamic instability. The Rice lab has developed an αβ-tubulin mutant which blocks at the growing microtubule end and will open up a field of observation inaccessible to wild-type tubulin concentration changes alone. By using DICT microscopy and flow chambers promoting microtubule growth, I observed that microtubules had shorter average lifetimes and unaffected growth velocities in the presence of blocked mutant compared to the wild-type controls. Through my experiments, we have identified a regime of microtubule dynamics that we could not access by simply changing the concentration of αβ-tubulin. Further investigation includes developing a computational model of this experiment.

 Presented at the North Texas Life Science Research Symposium, November 3, 2012, University of North Texas Health Science Center, Ft. Worth, TX.


University of Dallas physics graduate, Will Spearman, is a co-author on the Higgs Boson paper, "Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC", Phys. Lett. B, Volume 716, Issue 1, 17 September 2012, Pages 1–29The full list of co-authors is available at Higgs Paper.

Elastic and Inelastic Neutron Scattering Cross Sections for Fission Reactor Applications


S. F. Hicks1, L. J. Kersting1, P. J. McDonough1, C. J. Lueck1, A. J. Sigillito1, J. R. Vanhoy4, E. E. Peters3, B. C. Crider2, A. Kumar2, M. T. McEllistrem2, A. Chakraborty2, F. M. Prados-Estevz2, S. W. Yates2,3
(1)Department of Physics, University of Dallas, Irving TX 75062, United States
(2)Department of Physics and Astronomy, University of Kentucky, Lexington KY 40506, United States
(3)Department of Chemistry, University of Kentucky, Lexington KY 40506, United States
(4)Department of Physics, United States Naval Academy, Annapolis MD 21402, United States


Abstract: Nuclear data important for the design and development of the next generation of light-water reactors and future fast reactors include elastic and inelastic neutron scattering cross sections on important structural materials, such as Fe, and on coolant materials, such as Na. These reaction probabilities are needed since neutron reactions impact fuel performance during irradiations and the overall efficiency of reactors. While neutron scattering cross sections from these materials are available for certain incident neutron energies, the fast neutron region, particularly above 2 MeV, has large gaps for which no measurements exist, or the existing uncertainties are large. Measurements have been made at the University of Kentucky Accelerator Laboratory to measure neutron scattering cross sections on both natFe and 23Na in the region where these gaps occur and to reduce the uncertainties on scattering from the ground state and first excited state of these nuclei. Results from measurements on natFe at incident neutron energies between 2 and 4 MeV will be presented and comparisons will be made to model calculations available from data evaluators.

 

Presented at the 22nd International conference on the Use of Small Accelerators for Teaching and Research, August 5-10, 2012, Ft. Worth, TX.


 

Small Telescope Extrasolar Transit Search


Richard P. Olenick (University of Dallas, USA)

An observational campaign involving undergraduates was made of the open cluster Dolidze-Dzimseleshvili 9 with an f/1.5 152 mm astrograph for 37 nights in 2011. Lightcurves were obtained for approximately 1900 stars that were extracted and catalogued from the images. A software processing pipeline and SQL were created to provide methods for similar research at other universities. We report on the binaries, variable stars, and transit candidates found.

Presented at the European Week of Astronomy and Space Science, July 1-6, 2012, Pontificia Università Lateranense, Rome.


Graduation 2012

grads 2012

 Jared Rovny, Andrew Bechter, Blaise Dufrain, Eric Bechter, and Gerard Nichel received their B.S. degrees in physics on a beautiful day - May 13, 2012.  Jared also gave the valedictory address. 


$192k Department of Energy Grant Awarded to UD

May 8, 2012

The “Elastic/Inelastic Measurement Project” is supported under the Nuclear Energy University Programs (NEUP) of the Department of Energy (DOE).  The work is part of a total grant of over $880k for a collaborative research effort between the University of Kentucky (Profs. Marcus T. McEllistrem and Steven W. Yates,  the University of Dallas (Prof. Sally F. Hicks), the United States Naval Academy (Prof. Jeffrey R. Vanhoy), and Idaho National Laboratory (Dr. Tony S. Hill) .  The proposed neutron scattering cross sections are important for the advanced nuclear fuels program of the DOE, which sponsors research and development of innovative next-generation light water nuclear reactors and future fast reactors.  This award provides financial support for UD students to participate in the research, both for experiments at the University of KY and for data analysis at UD.



National Science Foundation Graduate Fellowship Winner 2012

monica

 Physics 2010 graduate Monica Lacy wins prestigious National Science Foundation Graduate Fellowship Award to study biophotonics at Vanderbilt University.  Congratulations Monica!  Monica was the 2010 Cardinal Spellman Award winner at the University of Dallas.  Monica joins 2008 physics graduate David Solis as recent recipients of NSF Graduate Fellowships and 2005 physics graduate Jamie Antonelli and 2008 physics graduate Will Spearman as recipients of the very prestigious Fulbright Fellowship.  Chemistry major Anna Marie DeLaRosa also won an NSF Graduate Fellowship in 2012!


Physics Students Discuss Their Research  at TX APS Meetings 2011-2012


Photometric Search for Variables in DD9 with STExTS


Eric Bechter, Richard Olenick, Arthur Sweeney, Blaise, DuFrain, and Andrew Bechter

The Small Telescope Extrasolar Transit Searches (STExTS) project is a small aperture, wide-angle search for planetary transits and variable stars. Observations of the open cluster Dolidze-Dzimseleshvili 9 were made with an f/2.8 152 mm astrograph for 37 nights in 2011. Lightcurves were obtained for approximately 1900 stars that were extracted and catalogued from the images. We report on preliminary results and characteristics of new binary stars discovered.

Presented at the Joint Spring 2012 Meeting of the Texas Sections of the APS and AAPT and Zone 13 of the SPS

Small Telescope Exoplanet Transit Search (STExTS) Transit Candidates in the Open Cluster

  Blaise DuFrain, Richard Olenick, Arthur Sweeney, Andrew Bechter, Eric Bechter   

The STExTs project searched for transit candidates in the open cluster Dolidze-Dzimselshvili 9 in Hercules for 37 nights using a f/2.8 152 mm astrograph. Approximately 11,000 images were obtained, processed, and analyzed for signatures of transits. We will present preliminary candidates and orbital periods.

Presented at the Joint Spring 2012 Meeting of the Texas Sections of the APS and AAPT and Zone 13 of the SPS

Increasing Astronomical Photographic Resolution by Convolution Matrices

  Gerard Nickel
    (University of Dallas)

In digital astronomical image processing, distortion limits the quality of photometric data. Often, this precludes accurate and precise analysis of stars or planetary features imaged close to one another. This is a problem in particular for period analysis of binary stars and searching for planetary transits, due to the merging of nearby stars into the area of interest. I proposed a method which utilizes a pair of filters and pixel math to increase resolution, thereby improving astronomical image features and enabling more precise analysis thereof. Comparison of processed and unprocessed data was done by comparing signal to noise ratio and brightness profiles of each. All calculations were performed and results analyzed using Astronomical Image Processing for Windows (AIP4WIN) by Richard Berry. In many cases, previously unusable star profiles were resolved sufficiently to take photometric data from them, while those with low signal to noise ratios improved by a factor of two to three. These results suggest that the proposed method could be used to enable photometric analysis of previously un-usable data.

Presented at the Joint Spring 2012 Meeting of the Texas Sections of the APS and AAPT and Zone 13 of the SPS

Small Telescope Extrasolar Transit Searches (STExTS) Data Analysis

 Andrew Bechter, Richard Olenick, Arthur Sweeney, Blaise Dufrain, Eric Bechter, University of Dallas

In 2011 the STExTs project surveyed the open cluster Dolidze-Dzimselshvili 9 in Hercules for 37 nights using a f/2.8 152 mm astrograph during which time approximately 11,000 images were obtained. We will discuss the star extraction algorithm, systematic error removal algorithm, and analyses used in processing the lightcurves for approximately 1900 stars. We will present our findings on new variable star candidates as well as new characteristics of existing variable stars.

 Presented at the Joint Spring 2012 Meeting of the Texas Sections of the APS and AAPT and Zone 13 of the SPS


Further Measurements of the New Dwarf Nova J2138+26

 

Jared Rovny, Kyle Mezier, Irina Voloshina, Richard Olenick, and Vladimir Metlov  (University of Dallas)

 J2138+26 is a new WZ Sge-type dwarf nova, discovered by Dae-Am Yi et al. on May 7, 2010 (CBET 2273). The object is suggested to be similar to GW Lib, another WZ Sge star outbursting in 2007, in terms of a low inclination angle and apparent brightness. J2138+26 is a binary star system with a variable light output caused by precession of the accretion disk around the white dwarf in the cataclysmic variable system. J2138 enters certain periods of outburst when it is significantly brighter, and its regular light variations (from precession), called superhumps, have a changing period. Additional photometric observation of this system provides information about the changing amplitude and period of its superhumps and outbursts, which in turn helps to determine the system's history and physical activity, as well as providing insight into cataclysmic variable systems and their behavior in general. The research in July 2010, done by the named authors and using a 0.6-m telescope from the Sternberg Astronomical Institute's branch of the Crimean Observatory in Crimea, was focused on such photometric observation. Data and analysis of the superhump periods will be presented. The analysis of data taken by Dr. Voloshina and ourselves will be presented with a focus on the changing amplitude and period of J2138, and the physical significance of these results discussed.


Dr. Hicks gives invited seminar at the University of Notre Dame

The Beauty of the (n,n'γ) Reaction for Investigating Collective Excitations Across the Te Isotopic Chain

Invited talk on nuclear structure delivered by Dr. Sally Hicks at the nuclear physics seminar at the University of Notre Dame on  2/20/2012.  UD students who worked on the study of the Te nuclei were acknowledged for their work.  These include: J. C. Boehringer, Matthew Burns, Meghan M. Walbran, Beth Sklaney, Gary Alexander, Corey Collard, Steve Etzkorn, William Faulkner,Patrick Roddy, Chris Davoren, Chris Aubin, Jeff Ellis, and Peter Burkett.


  Advanced Elastic/Inelastic Neutron Data Development Project

Research talk delivered at the AEINDDP NEUP meeting in Irving TX by Dr. Sally Hicks.  (10/7/2011)  UD physics majors who have made the research possible and acknowledged during the presentation:L. J. Kersting, C.J. Luke, P. J. McDonough, A. J. Sigillito, J. Schniederjan, L. Downes, J. Girgis


Measurement of the Absolute Elastic and Inelastic Differential Neutron Cross Sections for
23Na between 2 and 4 MeV

A Kumar , M.T. McEllistrem , B.P. Crider , E.E. Peters, F.M.Prados-Est´evez, A Chakraborty, J.R. Vanhoy, L.J. KerstingC. J. Lueck , P.J. McDonough , A Sigillito , S.F. Hicks , S.W. Yates, Talk delivered by Ajay Kumar at the Fourteenth International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics, University of Guelph, Canada August 28 - September 2, 2011. University of Dallas students who participated in the research are highlighted with bold letters.  Their name also appears in the conference proceedings, written by Dr. Sally Hicks and Dr. Jeff Vanhoy.  Dr. Hicks also served as a session chair at this conference.


Physics Graduates 2011

 

grads 2011

Nine physics majors graduate in 2011.  From left to right the graduates are Luke Kersting, Kyle Meziere, Anthony Sigillito, Christen Racciato, Andrew Miller, Paul Stauduhar, Natalie Weisse, Zofia Kaminski, and Mary Catalano.  Congratulations to all! 

 


Physics Majors in Rome Visit Castel Gandolfo

 Vatican Observatory Visit

 

vatican books

Sophomore physics major Jeff Schniederjan reports that , "We got to see one of the two telescopes on Castel Gandolfo. We also got to see the offices where anyone who works in the Vatican Observatory spends most of their time. Our tour was courtesy of Fr. Brown. Besides working in the Observatory he is also the librarian there. So he showed us some more familiar modern day textbooks and some really old ones too. The first book is Copernicus' De Revolutionibus Orbium Coelestium 2nd edition from about 1550. Then Galileo's book that got him in trouble with the church. Also equally as notable is Newtons Principia Mathematica printed in 1713. We all had a great time getting to tour the castle and visiting with Fr. Brown."


Outstanding Presentation Award

Senior physics major Anthony Sigillito was awarded the Outstanding Student Presentation Award at the Texas Section of the American Physical Society Fall-2010 meeting in San Antonio, TX.  His oral presentation "The Design and Fabrication of Bismuth Hall Effect Biosensors" stood out among the 100+ presentations of students who participated in the competition.  Anthony received a $200 prize for his accomplishment. (Award announced 1/3/2011.)



Meziere Family Gift to the Physics Department

The Meziere Family Observatory was built by senior physics major Kyle Meziere and his father.  The 10-foot diameter dome was donated to the UD Physics Department for student and faculty use.  Mr. Meziere and his family (shown in the above figure along with Mr. Arthur Sweeney on the right) hauled the observatory from San Diego to its temporary location at the home of adjunct physics professor Mr. Arthur Sweeney over the Thanksgiving holidays.  The department hopes to move the observatory to a dark site outside of the Dallas-Ft. Worth area as soon as an appropriate site is determined.  The physics faculty deeply appreciate this generous donation and will do their best to make sure many UD students are able to use the facility for observations and research.  See Meziere Observatory in Astronomy Corner for more details.


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