Douglas Edward Fields

Accomplishments of Dr. Douglas Edward Fields

I. Research Associate Proffesor, University of New Mexico

Since October 1995, Dr. Fields has been working with the PHENIX experiment to be located at the RHIC collider. The University of New Mexico group has taken on the responsibility for the design and construction of the Station I muon-tracking detectors, and is involved in the spin physics aspects of the experiment. Dr. Fields's involvement has consisted of:

1. Organized and led International Conference On High Energy Spin Physics. As Dr. Fields’s first endeavor at the University of New Mexico, he organized an International Conference on High Energy Spin Physics held in Espanola, New Mexico. Attended by about 25 physicists from the US, Japan and Europe, the conference was considered a great success.

2. Prototype efforts. Dr. Fields led the prototyping efforts for the PHENIX station one muon-tracking detector both at Los Alamos and at UNM. These prototypes were used to refine the design in order to improve the detector’s response and cut manufacturing costs and time. Many of the methods developed for station one were adopted by Los Alamos and Brookhaven National Labs for use in the Stations Two and Three designs.

3. Project management. Dr. Fields was the co-primary investigator for the funding contract through Brookhaven National Laboratory for the construction of the Station One Muon Tracking detector. The total funds allocated through this contract to date have been over nine hundred fourty thousand dollars.

4. Engineering design. Dr. Fields was the lead physicist working with Hytec, Inc., an engineering firm hired to do the final design and drawings for the PHENIX muon tracking station one. Dr. Fields overviewed the designs, and was responsible for giving final approval for drawings. To better achieve this goal, Dr. Fields learned AutoCAD and reviewed each drawing as a part of a composite model.

5. Procurement and cost reduction. Dr. Fields was responsible for working with vendors and the university business offices to procure all the parts necessary to build Station One. By aggressively seeking vendors for the high-technology manufacturing needed for these parts, he was able to significantly reduce the cost of building the detectors.

6. Co-organized workshop on Physics of Polarimetry at RHIC. As a part of his continued efforts to lead the physics efforts of the Spin Physics Program at RHIC, Dr. Fields became interested in the problem of polarimetry at the RHIC Collider. Together with a collaborator from Japan, he organized a workshop on Physics of Polarimetry at RHIC. This workshop led to efforts to design a new type of polarimeter for RHIC.

7. Software rewrite. In collaboration with a UNM post-doc, Dr. Fields re-wrote several of the PHENIX muon-tracking software modules originally written in FORTRAN. Dr. Fields converted the code to C++, the standard for PHENIX software.

8. Construction and testing. Dr. Fields, together with another UNM faculty, a UNM postdoc and several students began the construction phase of the PHENIX muon tracking station one. This involved instituting quality assurance programs, working in clean environments and extensive testing of components and assemblies.

9. IUCF experiment CE75. Dr. Fields was the co-spokesman for a test experiment for the new RHIC polarimeter, which he proposed. This experiment, conducted at the Indiana University Cooler Facility, involved detectors constructed by Dr. Fields at UNM. The test demonstrated the viability of the method proposed for the polarimeter.

10. BNL experiment E950. As a part of the continuing development of the RHIC polarimeter, another test experiment was conducted at the Brookhaven National Laboratory AGS facility. Dr. Fields was the co-spokesman for this experiment. This experiment demonstrated that the new RHIC polarimeter design could make a 4% polarization measurement in an accelerator environment. This design is now being employed for the RHIC polarimeter.

11. Student mentorship. Throughout his employ at UNM, Dr. Fields has played a very active role in student mentorship. Several of the undergraduate students who worked under his supervision have gone on to graduate school in physics, and several of the graduate students and postdoctoral staff have gone on to promising careers.

12. Graduate student recruitment. Towards a goal of recruiting high caliber graduate students into the High-Energy Physics program at UNM, Dr. Fields took the initiative and developed a recruiting poster for the group. This poster was printed and sent out to the 600+ undergraduate programs in the US and Canada.

13. Teaching. Periodically, as needed, Dr. Fields has taught classes at UNM including two full semesters of undergraduate physics (both Physics 161) and a full semester of conceptual physics (Physics 102). His ratings from students and peer teachers have been exemplary with a combined ICES score (Rate the teacher) of 4.8 on a scale from 1 to 6.

II. POSTDOCTORAL RESEARCHER, LOS ALAMOS NATIONAL LABORATORY

From August, 1992, through October, 1995, Dr. Fields was actively involved with the execution, analysis and upgrade of CERN experiment NA44. NA44 is a small acceptance spectrometer designed to measure single and twoparticle momenta and particle identification from high‑energy heavy‑ion reactions and involves more than 50 people from nearly 20 institutions. Dr. Fields's involvement has consisted of:

1. Data analysis. As a data analysis project, Dr. Fields was solely responsible for the analysis of the PR93 p + PB kaon pairs data. This data was calibrated and analyzed for inclusion in a recently published NA44 paper [18]. Most recently, he has been placed in charge of the pion pairs data from the Pb + Pb data runs in November 1994, and has begun the initial phases of a paper on this subject.

2. Active member of the data‑taking team. He has spent over seven months in the past three years at CERN participating in data taking and experimental setup and testing.

3. NA44 software maintenance and development. He was solely responsible for porting the NA44 software package to the HP UNIX working environment. He worked in collaboration with Dr. Hubert van Hecke in moving the software maintenance from PATCHY to CMZ code management systems.

4. Organization of Two‑Particle Correlation Workshop. Dr. Fields organized and directed the second in a series of workshops designed to focus efforts in a particular area of analysis. This workshop, attended by approximately 20 people, focussed on the analysis and physics problems associated with extracting space‑time information from two‑particle momenta distributions.

5. Relativistic Quantum Molecular Dynamics event generator simulations study. Dr. Fields has been heavily involved in the analysis of two‑particle correlation simulations as a working basis for the understanding of the experimental results [19]. He recently completed an extensive paper covering the results of these studies [20].

6. Simulation and testing of aerogel for use in Cherenkov detectors. Dr. Fields in collaboration with Dr. Hubert van Hecke studied and tested various samples of aerogel in an attempt to parameterize optical properties which determine their usefulness as a Cherenkov radiator [21].

7. Design, simulation, construction and testing of new aerogel Cherenkov detector [22]. Dr. Fields in collaboration with Dr. Hubert van Hecke was responsible for all aspects of the new aerogel Cherenkov detector built for the upcoming lead beam runs in late 1994. This entailed writing code for and analyzing results from detailed Monte Carlo, conceptual design of the detector components, working with industry and vendors for procurement of specialized components, working with LANL engineers on the construction drawings, assembly of the finished components, testing of the completed detector at the CERN PS facility, and on‑time installation and testing of the detector in the NA44 experimental facility.

8. Involvement in paper committees. NA44 uses committees consisting of several actively involved collaborators to review and approve papers concerning NA44 data analysis for submission to refereed journals. Dr. Fields has been an active and useful participant on three of these paper committees resulting in published or soon to be published papers [18, 23, 24].

9. NA44 Christmas workshop. Dr. Fields lead the effort to analize the pion pairs from the November Pb beam run.

10. Aerogel upgrade. Dr. fields worked with Dr. van Hecke in investigating the results of the performance of the aerogel detector and offering options for the upgrade of the detector [25].

11. NA44 collaboration meeting. Dr. Fields was asked to lead the effort to produce correlation functions from preliminary data for the April NA44 collaboration meeting. He produced correlation functions at both angle settings and for many different cut scenarios.

12. Phenix charm production. Dr. Fields has investigated the question of charm production at RHIC. This has led him to get the HIJING event generator operational for use with the PISA simulator.

13. General group activities. In addition to his NA44 involvement, Dr. Fields has actively participated in the promotion of P‑2 in general. He identified and procured three available no‑cost X‑terminals for group use, and has on many occasions provided assistance for other P‑2 projects and personnel.

III. GRADUATE STUDENT, INDIANA UNIVERSITY

Mr. Fields began his graduate school career in January 1986 at Indiana University working with Dr. Vic Viola and Dr. Kris Kwiatkowski. During his six and one‑half years at IUCF he participated in eight different experiments at four facilities including lUCF, MSU/NSCL, Laboratoire National Saturne and Argonne National Laboratory. His accomplishments include:

1. Preparation, set‑up and data taking of MSU K500 experiment. During his first semester as a graduate student at Indiana University, Mr. Fields was placed in charge of the experimental setup to measure intermediate mass fragment cross‑sections in 20 ‑ 50 MeV 14N induced reactions at the K500 cyclotron at the MSU/NSCL facility. This involved extensive NIM electronics setup, detector construction and setup and analysis code building. This work was then analyzed solely by Mr. Fields and was published [3].

2. Preparation, set‑up and data taking of MSU K1200 experiment. Mr. Fields was co‑responsible for the experimental setup to measure intermediate mass fragment cross‑sections in 50 ‑ 100 MeV 14N induced reactions at the K1200 cyclotron at the MSU/NSCL facility. He provided the code for the subsequent data analysis and was heavily involved in the writing of the two journal articles on this and the previous experiment [4, 5].

3. Preparation, set‑up and data taking of Laboratoire National Saturne experiment. Mr. Fields was heavily involved in an experiment at the SATURNE II accelerator in Saclay, France, to measure intermediate mass fragment cross‑sections for 3He induced reactions from 0.48 to 3.6 GeV. This experiment involved the transportation and setup of experimental equipment from IUCF to the accelerator facility in France and resulted in several journal articles [6‑8].

4. Collaborator, MSU experiment. Mr. Fields acted as a full collaborator in an MSU experiment designed to measure the source temperature in nuclear collisions by measuring the ratio of emitted excited states. His duties included aiding in the setup and data taking for this experiment [9].

5. Collaborator, MSU experiment. Mr. Fields acted as a full collaborator in an MSU experiment designed to measure the spacetime evolution in intermediate energy nuclear reactions by twoproton intensity interferometry. His duties included aiding in the setup and data taking for this experiment [10‑12].

6. Collaborator, IUCF experiment. Mr. Fields acted as a local collaborator in an experiment designed to measure the hard gamma ray cross‑section for proton induced reactions. His duties included aiding in the setup and data taking for this experiment [13‑15].

7. Detector Design. Mr. Fields was an active participant in the design and implementation of logarithmic, large‑solid‑angle detector [16]. Part of this duty was to participate in a detector development run at Argonne National Laboratory.

8. Collaborator, IUCF/Cooler experiment. Mr. Fields aided in the data taking for an IUCF/Cooler experiment designed to measure the nearthreshold production cross‑section for pions.

9. Thesis work. Mr. Fields proposed, designed, built and, in collaboration with his group carried out his thesis experiment on 3He induced intermediate mass fragment production in coincidence with fission fragments. Mr. Fields defended his proposal before the IUCF PAC receiving high recommendations with no reservations. The design work included the layout and design of a new silicon strip detector and electronics. During the analysis of the data, Mr. Fields observed a previously ignored phenomena and subsequently wrote a Physics Review Letter on the subject of neck emission of intermediate mass fragments in the fission of hot heavy nuclei [17].

IV. UNDERGRADUATE STUDENT, TENNESSEE TECHNOLOGICAL UNIVERSITY

Mr. Fields began his career in physics in 1980 as an Undergraduate Research Assistant his first semester at Tennessee Technological University. He remained actively involved in both research and teaching throughout his undergraduate education. His accomplishments include:

1. Assisting in data analysis. His first quarter at school was spent assisting in the data analysis of a BNL experiment to measure the lifetimes of excited states of neutron‑rich nuclei under the supervision of Dr. Raymond Kozub.

2. Teaching assistant. Beginning after his first quarter of course work, Mr. Fields was employed by the physics department as a teaching assistant. His duties included setting up freshman level physics labs and teaching and grading lab courses.

3. Undergraduate research assistant. Mr. Fields participated in summer research at the Florida State University Tandem Laboratory under the supervision of Dr. John Mateja. His duties included the setup and design of the experiments, operation of the Tandem Van de Graff accelerator, data aquisition, and data analysis of experiments dealing with the fusion cross‑sections for entrance channels leading to the 23Na compound nucleus [1].

4. Co‑author of university used laboratory manual. Mr. Fields coauthored a laboratory manual for use by the physics department freshman level physics labs. He developed several new experimental set‑ups, sample problems and tests. This manual is still in use [2].

Publications and Talks for Douglas Edward Fields

I. Journals

1. Fusion Cross Sections for Four Heavy-ion Entrance Channels Leading to the ²³Na Compound Nucleus. J.F. Mateja et al., Phys. Rev. C30, p.134 (1984).

2. Non-equilibrium Versus Equilibrium Emission of Complex Fragments Emitted in ¹⁴N-Induced Reactions on Ag and Au at E/A = 20-50 MeV. D.E. Fields et al., Phys. Lett. B220, p.356 (1989).

3. High Energy Gamma Ray Emission from Proton Induced Reactions. W. Benenson et al., Vern. Dtsch. Phys. Ges. 25, p.1534 (1990).

4. Two Proton Correlation Functions for Equilibrium and Non-equilibrium Emission. W.G. Gong et al., Phys Lett. B246, p.26 (1990).

5. Complex Fragment Emission from the ³He + ^natAg System Between 0.48 and 3.6 GeV. S.J. Yennello et al., Phys. Lett. B246, p.26 (1990).

6. Intensity-Interferometric Test of Nuclear Collision Geometries Obtained from the Boltzman-Uehling-Uhlenbeck Equation. W.G. Gong et al., Phys. Rev. Lett. 65, p.2114 (1990).

7. A Logarithmic, Large Solid-Angle Detector Telescope for Nuclear Fragmentation Studies. K. Kwiatkowski et al., Nucl. Inst. And Meth. A299, p.166 (1990).

8. Search for the Onset of Multifragmentation in the Reaction ³He + ^natAg. E.C. Pollacco et al., Nucl. Phys. A519, p.197c (1990).

9. Space-time Evolution of the Reactions ¹⁴N + ²⁷Al, ¹⁹⁷Au at E/A = 75 MeV and ¹²⁹Xe + ²⁷Al, ¹²²Sn at E/A = 31 MeV Probed by Two Proton Intensity Interferometry. W.G. Gong et al., Phys. Rev. C43, p1804 (1991).

10. Complex Fragment Emission in the E/A = 60-100 MeV ¹⁴N + ^natAg, ¹⁹⁷Au Reactions. J.L. Wile et al., Phys. Lett. B264, p.26 (1991).

11. Proton-Deuterium Bremsstrahlung at 145 and 195 MeV. J. Clayton et al., Phys. Rev. C45, p.1810 (1992).

12. High Energy Gamma Ray Production in Proton Induced Reactions at 104, 145 and 195 MeV. J. Clayton et al., Phys. Rev. C45, p.1815 (1992).

13. Excitation Functions for Complex Fragment Emission in the E/A = 20 100 MeV ¹⁴N + ^natAg, ¹⁹⁷Au Reactions. J.L. Wile et al., Phys. Rev. C45, p.2300 (1992).

14. Neck Emission of Intermediate Mass Fragments in the Fission of Hot Heavy Nuclei. D.E. Fields et al., Phys. Rev. Lett. 69 N26, p.3713 (1993).

15. Emission Temperatures from Widely Separated States in ¹⁴N- and ¹²⁹Xe-induced Reactions. C. Schwarz et al., Phys. Rev. C48, p.676 (1993).

16. Studies of Intermediate Mass Fragment Emission in the ³He + ^natAg, ¹⁹⁷Au Reactions Between 0.48 and 3.6 GeV. S.J. Yennello et al., Phys. Rev. C48, p.1092 (1993).

17. Calculations of Bose-Einstein Correlations from Relativistic Quantum Molecular Dynamics. J.P. Sullivan et al., Nucl. Phys. A566, p531c (1994).

18. Single Particle Spectra from NA44. M. Murray et al., Nucl. Phys. A566, p.515c (1994).

19. A Spot Imaging Cherenkov Counter. H. van Hecke et al., Nucl. Inst. and Meth. A346, p.127 (1994).

20. Kaon Interferometry in Heavy-Ion Collisions at the CERN SPS. H. Becker et al., Z. Phys. C64 p.209 (1994).

21. Use of Aerogel for Imaging Cherenkov Counters. D.E. Fields et al., Nucl. Inst. and Meth. A349, p431 (1994).

22. m_t Dependence of Boson Interferometry in Heavy-Ion Collisions at the CERN SPS. H. Becker et al.,Phys. Rev. Lett. 74, p.3340 (1995).

23. Directional Dependence of the Pion Source in High Energy Heavy-Ion Collisions. H. Bøggild et al., Phys. Lett. B349 p.386 (1995).

24. The Relationship Between Correlation Function Fit Parameters and Source Distributions. D.E. Fields et al., Phys. Rev. C52, p.986 (1995).

25. Recent Results From NA44 And A Review Of HBT. B.V. Jacak et al., Nucl. Phys. A590 p215c (1995).

26. Deuteron And Anti-Deuteron Production In CERN Experiment NA44. J. Simon-Gillo et al., Nucl. Phys. A590 p483c (1995).

27. Charged Hadron Distributions In P A And A-A Collisions At The CERN/SPS. I.G. Bearden et al., Nucl. Phys. A590 p523c (1995).

28. Low P_t Phenomena in A + A and p + A Collisions at Mid-Rapidity. H. Bøggild et al., Z. Phys. C69, p.621 (1996).

29. Coulomb Effects in Single Particle Distributions. Phys. Lett. B372 p.339 (1996).

30. Mid-Rapidity Protons in 158 A GeV Pb + Pb Collisions. I.G. Bearden et al., Phys. Lett. B388, p.431 (1996).

31. Kaon Spectra From P + Be To Pb + Pb Collisions. H. Beker et al., Heavy Ion Phys. 4, p213, (1996).

32. Measuring The Space-Time Extent Of Nuclear Collisions Using Interferometry. A. Franz et al., Nucl. Phys. A610 p240c (1996).

33. Collective Expansion in High Energy Heavy-Ion Collisions. I.G. Bearden et al., Phys. Rev. Lett. 78 N11, p.2080 (1997).

34. Multiplicity Dependence Of The Pion Source In S + A Collisions At The CERN/SPS. K. Kaimi et al., Z. Phys. C75 p619 (1997).

35. Multiplicity Dependence Of Pion Source Size In Heavy Ion Collisions. I.G. Bearden et al., Prog. Theor. Phys. Suppl.129 p161 (1997).

36. Particle Ratios From Central Pb + Pb Collisions At The CERN/SPS. M. Kaneta et al., J. Phys. G23 p1865 (1997).

37. One-, Two- And Three-Particle Hadron Spectra: Recent Results From CERN/SPS Experiment NA44. I.G. Bearden et al., Nucl. Phys. A638 p103 (1998).

38. Proton And Anti-Proton Distributions At Midrapidity In Proton Nucleus And Sulphur - Nucleus Collisions. I.G. Bearden et al, Phys. Rev. C57 p837 (1998).

39. Kaon And Proton Ratios From Central Pb + Pb Collisions At The CERN/SPS. I.G. Bearden et al., Nucl. Phys. A638 p419 (1998).

40. The Phenix Experiment At RHIC. D.P. Morrison et al., Nucl. Phys. A638 p565 (1998).

41. Spin Physics With The PHENIX Detector System. N. Saito et al., Nucl. Phys. A638 p575 (1998).

42. High Energy Pb + Pb Collisions Viewed By Pion Interferometry. I.G. Bearden et al., Phys. Rev. C58 p1656 (1998).

43. Two Proton Correlations Near Midrapidity In P + Pb And S + Pb Collisions At The CERN SPS. H. Bøggild et al., Phys. Lett. B458 p181 (1999).

44. Charged Kaon and Pion Production at Mid-Rapidity in Proton-Nucleus and Sulphur-Nucleus Collisions. H. Bøggild et al., Phys. Rev. C59, p.328 (1999).

II. Talks and Seminars.

1. Excitation Functions for Complex Fragments Emitted in ¹⁴N-Induced Reactions from E/A = 20-100 MeV. D.E. Fields et al., Proceedings of the Sixth Winter Workshop on Nuclear Dynamics, Jackson Hole, Wyoming January 1990.

2. Source Properties of Intermediate Mass Fragments Produced in Intermediate Energy Nuclear Reactions. D.E. Fields, Tennessee Technological University Nuclear Physics Seminar, Cookeville, Tennessee, September, 1991.

3. Emission of IMF’s Normal to the Fission Axis in Hot Heavy Nuclei. D.E. Fields et al., Proceedings of the Eighth Winter Workshop on Nuclear Dynamics, Jackson Hole, Wyoming, January, 1992.

4. Intermediate Mass Fragment Production from Intermediate Energy Nuclear Reactions. D.E. Fields, P-2 Nuclear Physics Seminar, Los Alamos National Laboratory, Los Alamos, New Mexico, June 1992.

5. Results from Two-Particle Correlation Studies from CERN Experiment NA44. D.E. Fields, NPP Talk, Los Alamos National Laboratory, Los Alamos, New Mexico, October, 1993.

6. Results from Two-Particle Correlation Studies from CERN Experiment NA44. D.E. Fields, T2 Seminar, Los Alamos National Laboratory, Los Alamos, New Mexico, March, 1994.

7. Intensity Interferometry: A Global RQMD Study. D.E. Fields, Corinne II Workshop on Multiparticle Correlations and Nuclear Reactions, Chateau de Clermont, Nante, September 6-10, 1994.

8. Status Report on Charm Studies. D.E. Fields, PHENIX Muon Arm Collaboration Meeting, UNM, Albuquerque, New Mexico, August 14, 1995.

9. Muon Tracking Station One Status and Plans. D.E. Fields, PHENIX Muon Arms Collaboration Meeting, Kyoto, Japan, November 17, 1995.

10. RHIC Spin. D.E. Fields, High Energy Physics Seminar, The University of New Mexico, Albuquerque, New Mexico, April 23, 1996.

11. Muon Tracking Station One Status and Plans. D.E. Fields, PHENIX Muon Arms Collaboration Meeting, Costa Mesa, California, February 28, 1997.

12. Electron-Muon Coincidence Studies. D.E. Fields, PHENIX Collaboration Meeting, Santa Fe, New Mexico, July 23, 1997.

13. Status of the Muon Subsystem. D.E. Fields, PHENIX Collaboration Meeting, Santa Fe, New Mexico, July 26, 1997.

14. Proposal to the IUCF Program Advisory Comm