TABLE OF CONTENTS

Preface

Users' Executive Committee

PAC Members

SECTION 1

Nuclear Structure Experimental

DISSOCIATION OF THE ⁸He NUCLEUS; Y. Iwata, K.Ieki, A. Galonsky, J.J. Kruse, J. Wang, E. Tryggestad, R.H. White-Stevens, P.D. Zecher, F.De·k, ¡. Horv·th, ¡. Kiss, Z. Seres, J.J. Kolata, J. von Schwarzenberg, R.E. Warner and H. Schelin

MIRROR SYMMETRY IN A=18 NUCLEI FROM ¹⁸Ne(p,p') IN INVERSE KINEMATICS; L.A. Riley, J.K. Jewell, P.D. Cottle, T. Glasmacher, K.W. Kemper, N. Alamanos, Y. Blumenfeld, J.A. Carr, M.J. Chromik, R.W. Ibbotson, F. MarÈchal, W.E. Ormand, F. Petrovich, H. Scheit, T. Suomij”rvi

INELASTIC SCATTERING OF ¹⁸Ne AND ISOSPIN PURITY IN A=18 NUCLEI; L.A. Riley, P.D. Cottle, M. Fauerbach, T. Glasmacher, K.W. Kemper, B. V. Pritychenko, H. Scheit

²⁰O(p,p') IN INVERSE KINEMATICS AND CORE POLARIZATION; NEAR THE DRIP LINE; J.K. Jewell,L.A. Riley, P.D. Cottle, K.W. Kemper, T. Glasmacher, R.W. Ibbotson, H. Scheit, M. Chromik, Y. Blumenfeld, S.E. Hirzebruch, F. MarÈchal, T. Suomij”rvi

BETA DELAYED NEUTRON EMISSION FROM ^19,20N; D. Anthony, P.A. Lofy, and D.J. Morrissey

DIPOLE STRENGTH FUNCTION IN ²⁰O; E. Tryggestad, T. Aumann, D. Bazin, J. R. Beene, Y. Blumenfeld, M. Chartier, M. L. Halbert, P. Heckman, J. F. Liang, D. C. Radford, D. Shapira, B. M. Sherrill, M. Thoennessen, and R. L. Varner

SPECTROSCOPY OF THE 2₁⁺ STATE IN ²²O AND SHELL STRUCTURE NEAR THE NEUTRON DRIP LINE; P.G. Thirolf, B. V. Pritychenko, B.A. Brown, P.D. Cottle, M.J. Chromik, T. Glasmacher, G. Hackman, R.W. Ibbotson, K.W. Kemper, T. Otsuka, L.A. Riley, H. Scheit

COULOMB EXCITATION OF THE 2₁⁺ STATE IN ²⁶Si; J.A. Church, P.D. Cottle, M. Fauerbach, T. Glasmacher, R.W. Ibbotson, K.W. Kemper, B. Pritychenko, H.Scheit

INTERMEDIATE-ENERGY COULOMB EXCITATION OF ^28,29,30Na; B.V. Pritychenko, T. Glasmacher, P.D. Cottle, R.W. Ibbotson, K.W. Kemper, L.A. Riley, A. Sakharuk, H. Scheit, and V.G. Zelevinsky

FIRST OBSERVATION OF AN EXCITED STATE IN THE N = 20 NUCLEUS ³¹Na; B.V. Pritychenko, T. Glasmacher, B.A. Brown, P.D. Cottle, R.W. Ibbotson, K.W. Kemper, L.A. Riley, and H. Scheit

EXPERIMENTAL STUDY OF SINGLE-PARTICLE STRUCTURE IN ³³Si AND ³⁴P; B.V. Pritychenko, T. Glasmacher, B.A. Brown, P.D. Cottle, R.W. Ibbotson, K.W. Kemper, H. Scheit

PROTON SCATTERING ON ^32,34Si IN INVERSE KINEMATICS; Z. Hu, T. Glasmacher, M. Chromik, P.D. Cottle, R.W. Ibbotson, K.W. Kemper, H. Scheit

TESTS OF ISOSPIN PURITY IN A=38 NUCLEI VIA COULOMB EXCITATION OF ³⁸Ca; P.D. Cottle, M. Fauerbach, T. Glasmacher, R.W. Ibbotson, K.W. Kemper, B. Pritychenko, H. Scheit, and M. Steiner

STUDY OF NUCLEAR STRUCTURE IN THE _(f_7/2) SHELL USING INTERMEDIATE-ENERGY COULOMB EXCITATION; P.A. Lofy, T. Glasmacher, D.J. Morrissey, D.W. Anthony, T. Aumann, D. Bazin, Y. Blumenfeld, R.W. Ibbotson, V. Maddalena, K.L. Miller, T. Nakamura, A. Navin, B. Pritychenko, H. Scheit, E.J. Spears and A. Wagner

BRANCHING RATIOS FOLLOWING THE BETA DECAY OF ⁶⁹Ni^m; J.I. Prisciandaro, P.F. Mantica, A.M. Oros-Peusquens, D.W. Anthony, M. Huhta, P.A. Lofy and R.M. Ronningen

EMPIRICAL STUDY OF THE SUBSHELL CLOSURE AT N=40; A.M. Oros-Peusquens and P.F. Mantica

TEMPERATURE DEPENDENCE OF THE GDR WIDTH IN ¹²⁰Sn; P. Heckman, D. Bazin, J. R. Beene, Y. Blumenfeld, M. J. Chromik, M. L. Halbert, J. F. Liang, E. Mohrmann, T. Nakamura, A. Navin, B. M. Sherrill, K. A. Snover, M. Thoennessen, E. Tryggestad, and R. L. Varner

Nuclear Structure -- Theory

NUCLEAR PAIRING PROBLEM WITH EXACT PARTICLE NUMBER CONSERVATION; Alexander Volya, Vladimir Zelevinsky and Alex Brown

MICROSCOPIC DESCRIPTION OF ANHARMONICITIES IN SOFT COLLECTIVE NUCLEAR MODES; Alexander Volya and Vladimir Zelevinsky

GEOMETRIC CHAOTICITY LEADS TO ORDERED SPECTRA FOR RANDOMLY INTERACTING FERMIONS; D. Mulhall, A. Volya and V. Zelevinsky

PARTICLE-CORE COUPLING AROUND ⁶⁸Ni; A.M. Oros-Peusquens and P.F. Mantica

Nuclear Reactions -- Experimental

ISOSPIN FRACTIONATION IN NUCLEAR MULTIFRAGMENTATION; H.S. Xu, M.B. Tsang, T.X. Liu, X.D. Liu, W.G. Lynch, W.P. Tan, G. Verde, A. Vander Molen, A. Wagner, H.F. Xi, C.K. Gelbke, L. Beaulieu, B. Davin, Y. Larochelle, T. Lefort, R.T. de Souza, R. Yanez, V. Viola, R.J. Charity, and L.G. Sobotka

NUCLEAR ISOTOPE THERMOMETRY; S.R. Souza, W.P. Tan, R. Donangelo, C.K. Gelbke, W.G. Lynch and M.B. Tsang

Experiment -- Other

BONNER SPHERE MEASUREMENTS OF NEUTRONS FROM A THICK TARGET OF HEVIMET BOMBARDED BY ⁴⁰Ar AT 150 MeV/u AND PREDICTIONS FOR THE COUPLED CYCLOTRON FACILITY; R.M. Ronningen, P. Grivins, P. Rossi and L.H. Heilbronn

SKYSHINE MEASUREMENTS AT THE NSCL USING BUBBLE DOSIMETERS; B. Mukherjee, R.M. Ronningen, P. Grivins and P. Rossi

MEASUREMENTS OF RADIOACTIVITY FROM ALUMINUM AFTER IRRADIATION BY ⁴⁰Ar at 150 MeV/u; R.M. Ronningen, P. Grivins, and P. Rossi

Accelerator Physics

A NEW CODE FOR SIMULATION OF SPACE CHARGE EFFECTS IN ISOCHRONOUS CYCLOTRONS; Eduard Pozdeyev

DESIGN STUDY OF A HIGH INTENSITY TEST CYCLOTRON; E.R. Forringer, H. Blosser, and F. Marti

Instrumentation

THIRTY-TWO-FOLD SEGMENTED GERMANIUM DETECTORS TO IDENTIFY g RAYS FROM INTERMEDIATE-ENERGY EXOTIC BEAMS; W.F. Mueller, T. Glasmacher, D. Gutknecht, G. Hackman, P.G. Hansen, Z. Hu, K.L. Miller, and P. Quirin

DATA ACQUISITION AND ANALYSIS FOR THE SEGMENTED GERMANIUM DETECTOR TEST STAND; K.L. Miller, C. Campbell, T. Glasmacher, W.F. Mueller, E. Strahler

PHOTOPEAK EFFICIENCY OF GE DETECTORS STUDIED WITH THE CODE MCNP; J. Stanley, A.M. Oros-Peusquens, J. Prisciandaro and P.F. Mantica

STOPPING ENERGETIC BEAMS IN GAS; T. Baumann, M.J. Chromik, R.R.C. Clement, C. Freigang, P. Heckman, J.P. Seitz, B.M. Sherrill, M. Thoennessen, and E.J. Tryggestad

STUDYING SHORT-LIVED RADIOACTIVITIES BY CORRELATING BETA DECAYS WITH FRAGMENT IMPLANTS IN A SILICON MICROSTRIP DETECTOR; J.I. Prisciandaro, P.F. Mantica, C.F. Powell and D. Seweryniak

PULSED MAGNETIC FIELD METHOD FOR MEASURING POLARIZATION OF RADIOACTIVE BEAMS; D.W. Anthony, P.F. Mantica, D.J. Morrissey, and Georgi Georgiev

FRAGMENT DETECTION SYSTEM FOR STUDIES OF EXOTIC, NEUTRON-RICH NUCLEI; J.J. Kruse, A. Galonsky, C. Snow, E. Tryggestad, J. Wang, K. Ieki, Y. Iwata and P.D. Zecher

POSITION DEPENDENCE OF THE ENERGY RESOLUTION OF CsI(Tl) SCINTILLATORS; G. Verde, A. Wagner, W.P. Tan, K. Chalut, M.D. Lennek, T.X. Liu, X.D. Liu, W.G. Lynch, A.M. Ramos, R. Shomin, M.B. Tsang, H.S. Xu, B. Davin, Y. Larochelle, R.T. de Souza, R.J. Charity, L.G. Sobotka

DEVELOPMENT STATUS AND DEPLOYMENT OF THE NEXT GENERATION NSCL DATA ACQUISITION SYSTEM; R. Fox, E. Kasten

STATUS OF THE SpecTcl DATA ANALYSIS PACKAGE; Ron Fox, Chase Bolen, Jeremy Rickard

Operations

USER FACILITY STATUS IN 1999; N. Anantaraman

K1200 OPERATING STATISTICS; D. Poe, P. Miller and M. Garbek

THE DEFLECTOR TEST STAND; D. Poe, F. Marti P. Miller, G. Stork

STATUS OF THE NSCL ACCELERATOR AND BEAM TRANSPORT ELECTRONIC SYSTEMS; John Vincent, Laura Barrett, John Brandon, Kelly Davidson, Brian Drewyor, Michael Fiasky, Lynn Foth, Adam Fredell, Kurt Kranz, Bill Nurnberger, Dan Pedtke, John Priller, Paula Schreiner, Dan Scott, Dale Smith

THE DISASSEMBLY OF THE PHASE II BEAMLINES AT THE NSCL; D. P. Sanderson

PROGRESS ON THE UPGRADE OF THE CYCLOTRON RADIATION SAFETY SYSTEM; R.M. Ronningen, P. Grivins, P. Rossi, and J.J. Vincent

THE EPICS UPGRADE AT NSCL; J. Priller, L. Foth

ARTEMIS, THE NEW ROOM TEMPERATURE ECR ION SOURCE AT MSU; H. Koivisto, D. Cole, A. Fredell, C. Lyneis, P. Miller, J. Moskalik, B. Nurnberger, J. Ottarson, A. Zeller, J. DeKamp, R. Vondrasek, P. Zavodszky and D. Xie

Education

ALN TECHNOLOGY ON CAMPUS: SUCCESSES AND PROBLEMS; E. Kashy, G. Albertelli, M. Thoennessen, Yihjia Tsai, and D.A. Kashy

THE NEW "ARMS RACE" IN EDUCATIONAL TECHNOLOGY: COMPUTERIZED PERSONALIZED ASSIGNMENTS VS. HIGH-TECH CHEATING; D. Kashy, G. Albertelli, W. Bauer, E. Kashy, M. Thoennessen

SECTION 2

Publications, Thesis Titles, and Visitors

PUBLICATIONS

THESIS TITLES

VISITORS IN1999