@article{ahmed_alarcon_aleksandrova_baeßler_barron-palos_bartoszek_beck_behzadipour_berkutov_bessuille_et al._2019, title={A new cryogenic apparatus to search for the neutron electric dipole moment}, volume={14}, ISSN={1748-0221}, url={http://dx.doi.org/10.1088/1748-0221/14/11/P11017}, DOI={10.1088/1748-0221/14/11/P11017}, abstractNote={A cryogenic apparatus is described that enables a new experiment, nEDM@SNS, with a major improvement in sensitivity compared to the existing limit in the search for a neutron Electric Dipole Moment (EDM). This apparatus uses superfluid 4He to produce a high density of Ultra-Cold Neutrons (UCN) which are contained in a suitably coated pair of measurement cells. The experiment, to be operated at the Spallation Neutron Source at Oak Ridge National Laboratory, uses polarized 3He from an Atomic Beam Source injected into the superfluid 4He and transported to the measurement cells where it serves as a co-magnetometer. The superfluid 4He is also used as an insulating medium allowing significantly higher electric fields, compared to previous experiments, to be maintained across the measurement cells. These features provide an ultimate statistical uncertainty for the EDM of 2−3× 10−28 e-cm, with anticipated systematic uncertainties below this level.}, number={11}, journal={Journal of Instrumentation}, publisher={IOP Publishing}, author={Ahmed, M.W. and Alarcon, R. and Aleksandrova, A. and Baeßler, S. and Barron-Palos, L. and Bartoszek, L.M. and Beck, D.H. and Behzadipour, M. and Berkutov, I. and Bessuille, J. and et al.}, year={2019}, month={Nov}, pages={P11017–P11017} }
 @inbook{gardner_karl_ferzli_shea_haase_day_2015, place={Cham, Switzerland}, series={ASTE Series in Science Education}, title={The Bennett's Millpond Environmental Learning Project: Place-based education with student-teacher research teams}, ISBN={["978-3-319-16410-6"]}, DOI={10.1007/978-3-319-16411-3_14}, abstractNote={This chapter describes a case study of place-based education in action called the Bennett’s Millpond Environmental Learning Project. The work sought to engage high school students and teachers in place-based, collaborative research experiences related to environmental sustainability. Results from a formal evaluation of the project are discussed. Several themes related to science teacher education and professional development that emerged from the data are presented, including teacher development as researchers, teacher development of collaborations with the community, and teacher use of technology to facilitate learning and outreach. An argument is provided for the importance of technology as a mediator that allows both teachers and students to easily move between local place-based environmental sustainability issues and global worldviews.}, booktitle={Educating Science Teachers for Sustainability}, publisher={Springer}, author={Gardner, G.E. and Karl, C. and Ferzli, M. and Shea, D. and Haase, D. and Day, J.B.}, editor={Stratton, S. and Hagevik, R. and Feldman, A. and Bloom, M.Editors}, year={2015}, pages={255–274}, collection={ASTE Series in Science Education} }
 @article{gould_haase_2014, title={Lewis Worth Seagondollar Obituary}, volume={67}, ISSN={["1945-0699"]}, DOI={10.1063/pt.3.2319}, abstractNote={Lewis Worth Seagondollar, longtime secretary of the Southeast Section of the American Physical Society, influential president of the physics student honor society Sigma Pi Sigma, and emeritus professor of physics at North Carolina State University, died at his home in Raleigh on 20 September 2013.Lewis Worth SeagondollarBRAND FORTNER, NCSU PHYSICS DEPARTMENTPPT|High resolutionBorn in Emporia, Kansas, on 30 September 1920, Worth graduated from what is now Emporia State University in 1941. He enrolled soon after in graduate school at the University of Wisconsin–Madison and began working with Raymond Herb on accelerator construction. In 1944 he went to Los Alamos to join the Manhattan Project, and he found himself in the spring of 1944 as part of a three-person team that measured the critical mass of plutonium-239.As the junior member of the team, Worth worked the overnight shift. In an episode that encapsulates his unfailing optimism that every problem has a solution, he succeeded in hammering out a small dent in one of the plutonium hemispheres after it was dropped on a table. Stationed nine miles away in Alamogordo, New Mexico, Worth witnessed the first nuclear test, and his experiences formed the basis of a memorable presentation he gave hundreds of times to civic and student groups over the following 50 years.Worth returned to Wisconsin in 1948 and, as the first student of Heinz Barschall, completed a dissertation in 1947 on fast-neutron cross sections on aluminum. He then participated in the installation of the research Van de Graaff accelerator at the University of Kansas. Worth worked as a professor of physics at Kansas before moving in 1965 to NC State, where he served as head of the physics department for 10 years. While at NC State, he cofounded the Triangle Universities Nuclear Laboratory and measured nuclear cross sections with secondary neutron beams and with cryogenic polarized targets. After retiring in 1991, he remained as professor emeritus; younger researchers gratefully remember his willingness to help and advise them.Worth offered years of dedicated service to ΣΠΣ and to the Society of Physics Students (SPS). It was during Worth’s tenure as ΣΠΣ president that the honor society merged with the American Institute of Physics (AIP) to form SPS. According to ΣΠΣ’s official history, as the presiding officer, Worth “allowed everyone to have his say and yet kept to the agenda (while he ‘chain-smoked 75 cigars!’).” Needing a two-thirds majority to pass, the articles of agreement between AIP and ΣΠΣ were approved with one vote to spare, 181 out of 270 (see Donald Cunningham and coauthors, Physics Today, September 1968, page 59). The honor society later instituted the Worth Seagondollar Service Award to recognize an exemplary level of commitment and service to SPS and ΣΠΣ. He was the first recipient.Worth’s 23 years as secretary of the Southeast Section of the American Physical Society was the longest tenure of anyone in that position. He steered the section through a period of rapid growth in the physics departments and research facilities in the Southeast and associated growth in participation at section meetings. He received two of the section’s highest awards, one for excellence in teaching physics in the Southeast and the other for service to the section.In retirement, and well into his eighties, Worth remained an active speaker and was invited to give many talks; he felt particularly honored to speak at the ΣΠΣ quadrennial meeting in Albuquerque in 2004. For many years he also set his scientific and managerial skills to planning and executing yard-sale shopping trips. He was known for his early use of GPS to optimize shopping routes. Worth was one of only a few people to ever buy a used, working Mercedes-Benz at a yard sale. He also found many pieces of semi-antique scientific equipment in similar unlikely venues.© 2014 American Institute of Physics.}, number={3}, journal={PHYSICS TODAY}, author={Gould, Chris and Haase, David}, year={2014}, month={Mar}, pages={64–66} }
 @article{kendellen_haase_2013, title={Measurement and modeling of thermal flow in an enclosed tube containing superfluid helium film}, volume={57}, ISSN={["1879-2235"]}, DOI={10.1016/j.cryogenics.2013.06.006}, abstractNote={Abstract We describe measurements of the thermal conductivity of a vertical tube partially filled with superfluid liquid helium at saturated vapor pressure. The tube was heated from the top while the bottom was maintained at 0.3 K. Thermal conduction through superfluid film creep and vapor reflux has been modeled in the literature and previously measured at T  ⩾ 0.9 K. From our measurements we assess the validity of the model at the lower temperatures, where significant temperature gradients develop, and consider the effect of ancillary thermal conductances. The work is motivated by the cryogenic requirements for a proposed cryogenic measurement of the electric dipole moment of the neutron.}, journal={CRYOGENICS}, author={Kendellen, D. P. and Haase, D. G.}, year={2013}, month={Oct}, pages={134–139} }
 @article{foster_gould_haase_kelley_markoff_tornow_2006, title={Measurement of the relative longitudinal spin-dependent total cross-section difference in (n)over-right-arrow-(d)over-right-arrow scattering}, volume={73}, ISSN={["1089-490X"]}, DOI={10.1103/physrevc.73.034002}, abstractNote={We report relative measurements of the n(vector sign)-d(vector sign) longitudinal spin-dependent total cross-section difference ({delta}{sigma}{sub L}){sub d}, at E{sub n}(lab) = 5.0, 6.88, and 9.0 MeV. The deuteron target was polarized via dynamic nuclear polarization at 250 mK in a 2.5-T external magnetic field. The target polarization was monitored by nuclear magnetic resonance and was calibrated by a ({delta}{sigma}{sub L}){sub d} measurement at E{sub n}(lab) = 1.18 MeV. The polarized neutron beams were produced through the {sup 3}H(p(vector sign),n(vector sign)){sup 3}He and {sup 2}H(d(vector sign),n(vector sign)){sup 3}He reactions. The neutron polarizations were determined either by direct measurement or from known or calculated polarization-transfer coefficients. The results for ({delta}{sigma}{sub L}){sub d} show agreement with theoretical calculations based on nucleon-nucleon potential models but are not of sufficient precision to distinguish the presence or absence of three-nucleon force contributions to the cross sections.}, number={3}, journal={PHYSICAL REVIEW C}, author={Foster, RD and Gould, CR and Haase, DG and Kelley, JM and Markoff, DM and Tornow, W}, year={2006}, month={Mar} }
 @article{walston_gould_haase_raichle_seely_tornow_wilburn_penttila_hoffmann_2001, title={Low-energy NN tensor force from (n)over-right-arrow-(p)over-right-arrow scattering: Results of an accurate experimental approach - art. no. 014004}, volume={6301}, number={1}, journal={Physical Review. C, Nuclear Physics}, author={Walston, J. R. and Gould, C. R. and Haase, D. G. and Raichle, B. W. and Seely, M. L. and Tornow, W. and Wilburn, W. S. and Penttila, S. I. and Hoffmann, G. W.}, year={2001}, pages={4004} }
 @article{raichle_gould_haase_seely_walston_tornow_wilburn_penttila_hoffmann_1999, title={Double polarized neutron-proton scattering and meson-exchange nucleon-nucleon potential models}, volume={83}, ISSN={["0031-9007"]}, DOI={10.1103/physrevlett.83.2711}, abstractNote={We report on polarized beam{endash}polarized target measurements of the spin-dependent neutron-proton total cross-section differences in longitudinal and transverse geometries ({Delta}{sigma}{sub L} and {Delta}{sigma}{sub T} , respectively) between E{sub n}=5 and 20thinspthinspMeV. Single-parameter phase-shift analyses were performed to extract the phase-shift mixing parameter {var_epsilon}{sub 1} , which characterizes the strength of the nucleon-nucleon tensor interaction at low energies. Consistent with the trend of previous determinations at E{sub n}=25 and 50thinspthinspMeV, our values for {var_epsilon}{sub 1} imply a stronger tensor force than predicted by meson-exchange nucleon-nucleon potential models and nucleon-nucleon phase-shift analyses. {copyright} {ital 1999} {ital The American Physical Society}}, number={14}, journal={PHYSICAL REVIEW LETTERS}, author={Raichle, BW and Gould, CR and Haase, DG and Seely, ML and Walston, JR and Tornow, W and Wilburn, WS and Penttila, SI and Hoffmann, GW}, year={1999}, month={Oct}, pages={2711–2714} }
 @article{saleh_schindler_sarma_haase_koch_kingon_1998, title={Isolation techniques and electrical characterization of single grain boundaries of Bi2Sr2CaCu2O2 high-temperature superconductor}, volume={295}, ISSN={["0921-4534"]}, DOI={10.1016/s0921-4534(97)01762-0}, abstractNote={We have isolated single grain boundaries of a bulk material of polycrystalline high-temperature superconductor Bi2Sr2CaCu2O2 (Bi-2212) tapes. The tapes were grown on a single crystal of MgO or Ag-foil by partial melting of the superconductor. The isolation techniques consisted of fabricating metal micro-contact pads, wire bonding, and laser patterning of the Bi-2212 superconductor. Results of electrical and magnetic measurements of single grain boundaries suggested a possible existence of Josephson-like junctions coexisting with flux flow junctions. In contrast to bulk samples, Tc of a single grain boundary did not change by applying magnetic field. Jc and Tc were found to be greatly dependent on heat treatment and growth conditions. The current–voltage characteristics of a single patterned bridge followed a relation of the form V∼(I−Ic)n for I>Ic with n∼1.2.}, number={3-4}, journal={PHYSICA C}, author={Saleh, AM and Schindler, G and Sarma, C and Haase, DG and Koch, CC and Kingon, AI}, year={1998}, month={Feb}, pages={225–234} }
 @article{seestrom_bowman_crawford_delheij_frankle_gould_haase_linuma_knudson_koehler_et al._1998, title={Parity nonconservation in neutron capture on Cd-113}, volume={58}, number={5}, journal={Physical Review. C, Nuclear Physics}, author={Seestrom, S. J. and Bowman, J. D. and Crawford, B. E. and Delheij, P. P. J. and Frankle, C. M. and Gould, C. R. and Haase, D. G. and Linuma, M. and Knudson, J. N. and Koehler, P. E. and et al.}, year={1998}, pages={2977–2985} }
 @article{walston_keith_gould_haase_raichle_seely_tornow_wilburn_hoffmann_penttila_1998, title={Polarization transfer in the H-3((p)over-right-arrow,(n)over-right-arrow)He-3 reaction and the 0(-) level in He-4}, volume={58}, ISSN={["1089-490X"]}, DOI={10.1103/physrevc.58.1314}, abstractNote={Longitudinal polarization-transfer coefficients for the ${}^{3}\mathrm{H}(\stackrel{\ensuremath{\rightarrow}}{p},\stackrel{\ensuremath{\rightarrow}}{n}{)}^{3}\mathrm{He}$ reaction have been measured at zero degrees for proton energies of 1.3\char21{}2.8 MeV. The results show a striking resonance behavior for energies corresponding to excitation of the ${0}^{\ensuremath{-}}$ level in ${}^{4}\mathrm{He}$ at 21.0 MeV. In agreement with $R$-matrix calculations, the value approaches unity at 1.52 MeV, the peak of the resonance. Near this same energy, at 1.62 MeV, the transverse polarization-transfer coefficient was measured to be consistent with zero.}, number={2}, journal={PHYSICAL REVIEW C}, author={Walston, JR and Keith, CD and Gould, CR and Haase, DG and Raichle, BW and Seely, ML and Tornow, W and Wilburn, WS and Hoffmann, GW and Penttila, SI}, year={1998}, month={Aug}, pages={1314–1317} }
 @article{huffman_gould_haase_1998, title={The deformation effect and time-reversal violation in neutron resonances}, volume={24}, ISSN={["0954-3899"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-0032385772&partnerID=MN8TOARS}, DOI={10.1088/0954-3899/24/4/008}, abstractNote={We describe how the deformation effect in nuclear spin aligned can be used to identify small d-wave admixtures in predominantly s-wave resonances. Using standard angular momentum penetrabilities, we estimate deformation effect cross sections for resonances below 500 eV. If d-wave admixtures are identified in a number of s-wave resonances, then a test for a parity-conserving, time-reversal violating term in the neutron-nucleus forward scattering amplitude is possible.}, number={4}, journal={JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS}, author={Huffman, PR and Gould, CR and Haase, DG}, year={1998}, month={Apr}, pages={763–770} }
 @article{haase_keith_gould_huffman_roberson_seely_tornow_wilburn_1998, title={The scattering of polarized neutrons from statically polarized solid He-3}, volume={402}, ISSN={["0168-9002"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-0031646245&partnerID=MN8TOARS}, DOI={10.1016/s0168-9002(97)00860-7}, abstractNote={Abstract We have constructed a 0.4 mole solid 3 He target, cryogenically polarized at 12 mK in a field of 7 T. The 0.04 atoms/b target reached a polarization of 38% in 35 h. Such a target may be applied to any experiment which is tolerant of the large ambient magnetic field and which produces target heating of less than a microwatt. High energy neutron and photon scattering experiments meet these requirements. The target's figure of merit for neutron transmission measurement exceeds that of polarized gas targets by greater than 35. At the Triangle Universities Nuclear Laboratory we have used the target to measure the total cross section differences Δσ T and Δσ L for incident polarized neutrons of energies 2–8 MeV. The cross section difference is sensitive to the excited state structure of the n- 3 He system. The results have been compared to a recent R-matrix analysis of R = 4 scattering and reaction data, and provide support for the 4 He level scheme derived from that analysis.}, number={2-3}, journal={NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT}, author={Haase, DG and Keith, CD and Gould, CR and Huffman, PR and Roberson, NR and Seely, ML and Tornow, W and Wilburn, WS}, year={1998}, month={Jan}, pages={341–346} }
 @article{alfimenkov_chernikov_lason_mareev_novitsky_pikelner_skoy_tsulaya_gould_haase_et al._1997, title={Energy and orientation dependence of neutron depolarization in a large single crystal of ferromagnetic holmium}, volume={81}, ISSN={["0021-8979"]}, DOI={10.1063/1.364179}, abstractNote={We report measurements of the depolarization of epithermal neutrons (1.7–59 eV) in magnetic domains of a 2.0-cm-diam cylindrical single crystal of ferromagnetic holmium. The neutrons were polarized by a dynamically polarized proton target and polarization analyzed using a statically polarized rare-earth spin filter. Based on the dependence of the depolarization on neutron energy and crystal orientation, we determined the domains to be laminar, or needlelike, with the long axis slightly deflected from the c crystalline axis and having an average width of 59 μm.}, number={3}, journal={JOURNAL OF APPLIED PHYSICS}, author={Alfimenkov, VP and Chernikov, AN and Lason, L and Mareev, YD and Novitsky, VV and Pikelner, LB and Skoy, VR and Tsulaya, MI and Gould, CR and Haase, DG and et al.}, year={1997}, month={Feb}, pages={1358–1361} }
 @article{huffman_roberson_wilburn_gould_haase_keith_raichle_seely_walston_1997, title={Test of parity-conserving time-reversal invariance using polarized neutrons and nuclear spin aligned holmium}, volume={55}, ISSN={["2469-9993"]}, DOI={10.1103/physrevc.55.2684}, abstractNote={A test of parity-conserving, time-reversal noninvariance (PC TRNI) has been performed in 5.9 MeV polarized neutron transmission through nuclear spin aligned holmium. The experiment searches for the T-violating fivefold correlation via a double modulation technique{emdash}flipping the neutron spin while rotating the alignment axis of the holmium. Relative cross sections for spin-up and spin-down neutrons are found to be equal to within 1.2{times}10{sup {minus}5} (80{percent} confidence). This is a two orders of magnitude improvement compared to traditional detailed balance studies of time reversal, and represents the most precise test of PC TRNI in a dynamical process, to our knowledge. {copyright} {ital 1997} {ital The American Physical Society}}, number={5}, journal={PHYSICAL REVIEW C}, author={Huffman, PR and Roberson, NR and Wilburn, WS and Gould, CR and Haase, DG and Keith, CD and Raichle, BW and Seely, ML and Walston, JR}, year={1997}, month={May}, pages={2684–2696} }