RSIC Newsletter

Oak Ridge National Laboratory

Post Office Box 2008 Oak Ridge, Tennessee 37831-6362

managed by Lockheed Martin Energy Systems

for the U.S. Department of Energy

Phone No. 615-574-6176

FAX 615-574-6182

BitNet: PDC@ORNLSTC Internet: PDC@ORNL.GOV

WWW: http://epicws.epm.ornl.gov

No. 369                                                    August 1995

In modern times, it is only by the power of association that men of any calling exercise their due influence in the community.--Elihu Root

CHANGES TO THE COMPUTER CODE COLLECTION

Five changes were made to the computer code collection during the month. Four new code systems were packaged and added to the collection and one existing package was updated. One change resulted from a foreign contribution.

CCC-542/CAP88-PC

OP SYS: Windows

Language: C++, Visual Basic, Fortran 77

Computers: PC

Format: DOS

The Department of Energy, Washington, updated the PC version of this code system for assessing dose and risk from radionuclide emissions to air in compliance with National Emission Standards for Hazardous Air Pollutants (NESHAPs). The addition of a full screen editor simplifies creation of population data files to be input to CAP88-PC. The Population File Editor is programmed in Visual Basic and must be installed in a Windows (Version 3.1 or later) environment. The package is transmitted on three DS/HD 3.5-in. (1.44 Mb) diskettes in self-extracting compressed DOS files. Reference: EPA 402-B-92-001 (March 1992). Fortran 77, C++, Visual Basic; IBM PC (C00542/IBMPC/01).

CCC-547/DANTSYS 3.0

OP SYS: Unix

Language: C, Fortran 77

Computers: Cray, WS

Format: tar

Los Alamos National Laboratory contributed this one-, two-, and three-dimensional, multigroup, discrete-ordinates transport code system. DANTSYS replaces the earlier TWODANT-SYS package and includes five major codes. ONEDANT solves the one-dimensional multigroup transport equation in plane, cylindrical, spherical and two-angle plane geometries. TWODANT solves the two-dimensional multigroup transport equation in x-y, r-z, and r-theta geometries. TWOHEX solves the two-dimensional multigroup transport equation on equilateral triangular meshes in the x,y plane. THREEDANT solves the three-dimensional multigroup transport equation in x-y-z and r-z-theta geometries. TWODANT-GQ solves the two-dimensional transport equation in x-y and r-z geometries on general quadrilaterals. DANTSYS accepts the basic multigroup cross sections for isotopes in either of the standard interface files (ISOTXS or GRUPXS) or in card-image libraries whose formats are referred to as Los Alamos, ANISN, or FIDO. PSR-317/TRANSX2.15 will translate MATXS libraries into these formats.

DANTSYS runs on the following platforms: CRAY-YMP, Sun SparcStation IPX, IBM RS/6000, HP, and Silicon Graphics under Unix-based operating systems. A Fortran 77 compiler, a C-language preprocessor (cpp), a C-compiler, and GMAKE (GnuMake from Free Software Foundation) are required to install the package which is distributed on 1 DC 6150 (150 Mb) cartridge, 4-mm or 8-mm tape in compressed tar format. Reference: LA-12969-M (June 1995). Fortran 77 and C; Cray and workstations (C00547/MFMWS/00).

CCC-634/DUST-BNL

OP SYS: DOS

Language: Fortran 77

Computers: PC

Format: DOS

Brookhaven National Laboratory, Upton, New York, contributed this code system for calculating the disposal unit source term. DUST-BNL solves for release and transport of contaminants from containerized wastes. Each container may have unique properties (i.e., time to failure or localized failure) and each waste form may have unique release properties. Release from the waste form is limited by one of four physical or chemical restraints: solubility, diffusion, dissolution, and surface wash-off with partitioning. The release from the waste form acts as a source for transport in the advection/dispersion equation. Transport is modeled in one-dimension through the groundwater pathway from subsurface disposal. The advection/dispersion transport equation with spatially varying sources (waste forms) is solved using the finite-difference method.

DUST-BNL runs on IBM PC or compatibles with a 386 processor (minimum) with 500 kb of conventional RAM available for execution. Approximately 4 Mb of disk space is required for the entire code package. The Lahey F77L/EM32 V5.0 compiler was used to create the included executables. The package is transmitted on one DS/HD 3.5-in. (1.44 Mb) diskette in self-extracting compressed DOS files. Reference: NUREG/CR-6041, BNL-NUREG-52375 (1993). Fortran 77; PC 386 (C00634/PC386/00).

CCC-640/DCHAIN 1.3

OP SYS: DOS, OS/2, VMS, Unix

Language: C

Computers: many

Format: DOS

Idaho National Engineering Laboratory through the ESTSC contributed this code system for radioactive decay and reaction chain calculations. DCHAIN calculates time-dependent daughter populations in radioactive decay and nuclear reaction chains. Chain members can have non-zero initial populations and be produced from the preceding chain member as a result of radioactive decay, a nuclear reaction, or both. Chains can contain up to 15 members. Parent-daughter equilibrium times and relative activities at equilibrium can also be calculated. The calculational method uses a generalized form of the Bateman equations. DCHAIN is written in ANSI C and runs on MS-DOS, OS/2, VMS and Unix operating systems. It has been tested on the PC using Microsoft C V6.0 and QuickC V2.5. An executable is included for personal computers running DOS V2.1 or higher. The package is transmitted on one DS/HD 3.5-in.(1.44 Mb) diskette written in DOS format. Reference: EGG-NRP-11289 (May 1994). C; PC, Vax, DEC, DG, IBM RS/6000 (C00640/MNYCP/00).

PSR-353/ROLAIDS-CPM

OP SYS: Unix

Language: Fortran 77

Computers: WS

Format: tar

The Energy Research Foundation, Petten, The Netherlands, contributed this program to calculate group-averaged cross sections for specific zones in a one-dimensional geometry. ROLAIDS-CPM is an extension of ROLAIDS from the PSR-315/AMPX-77 package. The main extension is the capability to use the collision probability method for a slab- or cylinder-geometry rather than the interface-currents method. Collision probabilities in a cylindrical geometry are calculated according to the Carlvik method using a Gauss integration. On Sun or DEC workstations, users may substitute ROLAIDS-CPM for the original version distributed with AMPX. The package is available on 1 DC 6150 (150 Mb), 4-mm or 8-mm tape cartridge in tar format. References: ECN-R-93-013 (Aug. 1993) and ECN-R-93-016 (Dec. 1993). Fortran 77; Sun or DEC workstation (P00353/SUN04/00).

Two new links to home pages for ANS divisions have been added to the RSIC WWW server under "Professional Societies," They are Radiation Protection & Shielding (RP&S) and Nuclear Engineering Education for the Disadvantaged (NEED).

PERSONAL ITEMS

In serving a specialized area of scientific endeavor, it seems important that we note significant events or changes in the activities of people concerned with radiation protection, transport, and shielding in the nuclear industry. We, therefore, continue to carry personal items as they are brought to our attention.

Octave Du Temple was awarded the 1995 ANS Latin American Section (LAS) Award for Personality of the Year for his contribution to creating the LAS 20 years ago and his continuing support of the development of the Latin American nuclear community. Du Temple is ANS executive director emeritus.

John H. Hubbell was awarded the 1995 Outstanding Alumnus Award by the University of Michigan Department of Nuclear Engineering. While at the National Institute of Standards and Technology he developed the primary data base for photon interaction cross sections covering energies from soft X rays to energetic gamma rays.

Jean-Claude Leny, Chairman and CEO of Framatome of France, was awarded the Henry DeWolf Smyth Nuclear Statesman Award by the American Nuclear Society and the Nuclear Energy Institute during the 1995 Nuclear Energy Assembly. The award honors individuals whose statesmanlike contributions have advanced nuclear energy.

George V. McGowan received the 1995 United States Energy Award given by the United States Energy Association, the U.S. member committee of the World Energy Council, in recognition of lifetime achievements and contributions to an international understanding of energy issues. McGowan is retired chairman and CEO of Baltimore Gas & Electric Co.

A. David Rossin, appointed Center Affiliated Scholar for 1995-96 at the Center for International Security and Arms Control at Stanford University, will research the people and events that led to the U.S. policy decision in 1977 to abandon reprocessing of spent nuclear reactor fuel, its impacts and implications for the future. Rossin was Assistant Secretary for Nuclear Energy at the U.S. Department of Energy in 1986-87 and president of the American Nuclear Society in 1992-93. He now has his own consulting company in Los Altos, California.

Gerald P. Lahti has left Sargent & Lundy after 22 years and is now with ComEd (formerly known as Commonwealth Edison) as a radiological safety specialist. Before his work with Sargent & Lundy, Jerry was with NASA-Lewis working in the space nuclear propulsion and power group. He served as chair of the ANS Radiation Protection and Shielding Division. Jerry is a long-time RSIC friend and contributor and we wish him luck in his new post.

Obituaries

Carl A. Erdman died at the age of 51 on June 12. He was a nationally recognized specialist in reactor safety and an innovative leader in the development of engineering curricula. As executive associate dean of engineering at Texas A&M, he guided the development of the College of Engineering as a focal point for creating local, state, and national models at all levels of engineering education.

Ernest T. S. Walton died June 25 in Belfast, Northern Ireland. Walton shared the 1951 Nobel Prize in Physics with John Douglas Cockcroft for creating the first man-made atom smasher and using it in experiments from 1927 to 1932 at Cambridge University.

Five New Fellows Honored at 1995 ANS Annual Meeting

Five American Nuclear Society (ANS) members elected as ANS fellows were honored during the 1995 ANS Annual Meeting. The citation of fellow is given for notable original research or invention in the nuclear field; scientific or technical leadership in a nuclear enterprise of substantial scope; outstanding leadership as a teacher in the nuclear field; outstanding leadership in design, engineering, and operating efforts in the nuclear field; or outstanding efforts in the areas of nuclear health, safety, and regulation. The citations follow:

Pierre Bacher, Senior Executive Vice President Engineering & Construction Division, Electricité de France, for "playing an important role in the development of gas-cooled reactors in France, for achieving a major accomplishment with the implementation of the standardization policy which has been at the basis of the success of the French PWR program, and for being fully involved in international discussions and actions to develop a new generation of advanced LWR."

Mujid S. Kazimi, Head of the Nuclear Engineering Department, Massachusetts Institute of Technology, for "outstanding accomplishment in development of analysis techniques and figures of merit for assessing safety, waste management and environmental impacts of fusion power systems and creating a sustained, leading university program which has educated outstanding fusion safety professionals."

Bruce W. Spencer, Sr. Nuclear Engineer, Argonne National Laboratory, for "fundamental contributions to the understanding of safety issues in virtually every reactor type, through innovative analytical and experimental programs carried out both in-reactor and out-of-pile, and for his contributions to international programs furthering reactor safety worldwide."

Thomas T. Claudson, recently retired from Battelle Pacific Northwest Laboratory, for "energetic and effective contributions to the advancement of nuclear technology in understanding neutron radiation damage in materials through outstanding individual accomplishments and through his technical leadership in international programs and standardization efforts. His achievements have had immediate and long-term value in meeting needs of reactor developers and designers."

Ronald A. Knief, consultant for Ogden Environmental and Energy Services, Albuquerque, New Mexico, for "contributions as a teacher, author, manager, and consultant in blending education and training for the benefit of university students, practicing engineers and scientists, educators, instructors and members of the public in the subject areas of nuclear engineering, nuclear criticality safety, risk management and nuclear safety evaluation."

The Proceedings of the Third International Workshop on Implementaion of ALARA at Nuclear Power Plants, NUREG/CP-0143, held on May 8-11, 1994, on Long Island, New York, are now available. The workshop was jointly sponsored by the U.S. Nuclear Regulatory Commission and the Brookhaven National Laboratory ALARA Center. Copies can be purchased by writing to the following address: The National Technical Information Service, Springfield, VA 22161-0002 USA.

CONFERENCES, COURSES, SYMPOSIA

RSIC attempts to keep its users/contributors advised of conferences, courses, and symposia in the field of radiation protection, transport, and shielding through this section of the newsletter. Should you be involved in the planning/organization of such events, feel free to send your announcements and calls for papers to RSIC.

ITS Session Added to ANS Winter Meeting

A special session on ITS (Integrated Tiger Series) has been added for the ANS Winter Meeting in San Francisco, October 29-November 3, 1995. The session is sponsored by the Radiation Shielding Information Center.

Calendar

Your attention is directed to the following events of interest.

September 1995

International Conference on Evaluation of Emerging Nuclear Fuel Cycle Systems (GLOBAL'95), Sept. 11-14, 1995, Palais des Congres, Versailles, France. Contact: Massimo Salvatores, CE/CADARACHE, DRN, Bat. 707, F-13108 ST. Paul-lez Durance Cedex, France (phone +33 42 25 33 65; fax: +33 42 25 41 42; internet : salvatores@macadam.cea.fr)

Environmental Monitoring, Sept. 11-15, 1995, in Oak Ridge, Tennessee, a short course sponsored by Oak Ridge Associated Universities. Contact: Registrar Professional Training Programs, Oak Ridge Associated Universities, P.O. Box 117, Oak Ridge, TN 37831-0117 (phone 615-576-3576 or 615-241-4888; fax 615-576-9383).

Fifth International Conference on Nuclear Criticality Safety (ICNC'95), Sept. 17-22, 1995, Albuquerque, New Mexico. Contact: R. Douglas O'Dell, ESH-6, MS F691, P.O. Box 1663, Los Alamos National Laboratory, Los Alamos, NM 87545 (phone 505-667-4614; fax 505-665-4970; email rdo@lanl.gov).

3rd European Symposium on Radiations and Their Effects on Components and Systems, Sept. 18-22, 1995, Arcachon, France. Contact Europa Organisation, 40 Blvd. de Recollets, F-31405, Toulouse Cedex, France (fax 33-61 32 6600).

Decommissioning of Nuclear Installations, Sept. 18-22, 1995, Greifswald, Mecklenburg-Vorpommern, Germany, a course offered by EURO Courses. Contact Secretariat EURO Courses, Energiewerke Nord GmbH, Postfach 1125, D-17509 Lubmin, Germany (phone 49-38354-48030; fax 49-38354-22458).

Applied Health Physics, Sept. 18-Oct. 20, 1995, in Oak Ridge, Tennessee, a five-week course sponsored by Oak Ridge Associated Universities. Contact: Registrar Professional Training Programs, Oak Ridge Associated Universities, P.O. Box 117, Oak Ridge TN 37831-0117 (phone 615-576-3576 or 615-241-4888; fax 615-576-9383).

International Topical Meeting on VVER Safety, Sept. 21-23, 1995, Prague, Czech Republic. Contact: Nuclear Research Institute Rez plc, Programme Committee for International Topical Meeting on VVER Safety, 25068 Rez, Czech Republic (phone 42-2-66412619, fax 42-2-2857840).

SAMO95, Theory and Applications of Sensitivity Analysis of Model Output in Computer Simulation, Sept. 25-27, 1995, Belgirate, Italy. Contact: JRC-Ispra Site, T.P. 020, I-21020 Ispra (VA) Italy (phone 39-332-789370, fax 39-332-782435/785409).

7th International Conference on Fusion Reactor Materials, Sept. 25-29, 1995, Obninsk, Russian Federation. Contact: Inst. of Physics and Power Engineering, Prof. V. M. Chernov, 249020, Obninsk, Kaluga Region, Russian Federation (fax 007-095-230-2326).

16th Symposium on Fusion Engineering, Sept. 30-Oct. 4, 1995, Urbana, Illinois. Contact: Cella Elliott, Conference Secretary, Fusion Studies Lab., University of Illinois, Urbana, IL 61801 (phone 217-333-2772; fax 217-333-2906; email miley@uiucvmd.bitnet).

October 1995

3rd International Workshop on Dosimetry for Radiation Processing, Oct. 1-6, 1995, Québec, Canada. Contact: John D. Rickey, Far West Technology, Inc., 330 D S. Kellogg, Goleta, CA 93117 USA (phone 805-964-3615; fax 805-964-3162).

Fundamentals of Health Physics, Oct. 2-6, 1995, Knoxville, Tennessee, a course offered by Consultec Scientific, Inc. Contact: Consultec Scientific, Inc., Suite 110, 725 Pellissippi Parkway, Knoxville, TN 37932-3300 (phone 800-269-4333, fax 423-675-4334; email info@consultec.com).

Statistics for Health Physicists Oct. 2-6, 1995, Knoxville, Tennessee, a course offered by Consultec Scientific, Inc. Contact: Consultec Scientific, Inc., Suite 110, 725 Pellissippi Parkway, Knoxville, TN 37932-3300 (phone 800-269-4333, fax 423-675-4334; email info@consultec.com).

International Conference on Radiation Dose Management, Oct. 3-5, 1995, Windermere, United Kingdom. Contact: European Nuclear Society, Belpstrasse 23, CH-3007, Bern, Switzerland.

Radiation Risk, Risk Perception, and Social Constructions Seminar, Oct. 19-20, 1995, Oslo, Norway, sponsored by the Norwegian Radiation Protection Authority and the Swedish Radiation Protection Institute. Contact: Per Strand, Norwegian Radiation Protection Authority, P.O. Box 55, N-1345 Osteras, Norway.

International Symposium on Nuclear Energy, Oct. 20-21, 1995, Bucharest, Romania. Contact: C. Briatianu, Univ. Politechnicadin Bucuresti, Facultateade Inginerie Mecanica, Splaiul Independentei Nr. 313, Sector 6, 77206, Bucharest, Romania (phone 40-1-6314010/224).

Annual Meeting of the Society for Industrial and Applied Mathematics, Oct. 23-26, 1995, Charlotte, North Carolina. Contact: Soc. for Indus. and App. Math., 3600 University City Sciences Center, Philadelphia, PA 19104-2688 (fax 215-386-7999, email meetings@siam.org).

NRRPT Examination Review, Oct. 23-27, 1995, Knoxville, Tennessee, a course offered by Consultec Scientific, Inc. Contact: Consultec Scientific, Inc., Suite 110, 725 Pellissippi Parkway, Knoxville, TN 37932-3300 (phone 800-269-4333, fax 423-675-4334; email info@consultec.com).

ANS Winter Meeting, Oct. 30-Nov. 2, 1995, San Francisco. Contact: ANS, 555 N. Kensington Ave., La Grange Park, IL 60545

November 1995

Pathway Analysis and Risk Assessment for Environmental Compliance and Dose Reconstruction, Nov. 6-10, Kiawah Island, South Carolina, a course offered by Radiological Assessments Corp. Contact: RAC Course Coordination Office, ATTN: Phoebe Boelter, Suite 34, 1715 North Wells St., Chicago, IL 60614. (Phone 312-988-7667, fax 312-649-9383).

International High-Level Radioactive Waste Management, Nov. 11, 1995, Las Vegas, Nevada. Contact: Allen G. Croff, ANS, 555 N. Kensington Ave., La Grange Park, IL 60525.

Radiation Safety, Nov. 13-17, 1995, Evanston, Illinois, a course offered by Northwestern University. Contact: Northwestern University, McCormick Continuing Professional Development, 2145 Sheridan Road, Room 2823, Evanston, IL 60208 (phone 708-491-3365, fax 708-467-3033).

8th Symposium on Neutron Dosimetry: Advances in Nuclear Particle Dosimetry for Radiation Protection and Medicine, Nov. 13-17, 1995, Paris, France. Contact: CEC, DG XII/F/6, Dr. H. G. Menzel, 200 rue de la Loi, Building Arts 3/61, B-1049, Brussels, Belgium (fax 32-2-296-6256).

Environment Safety and Health Conference, Nov. 13-17, 1995, Denver, Colorado. Contact: Eleanor Crampton, U.S. Department of Energy, EH-51, 270CC Washington, DC 20875-0963 (301-903-3732).

Joint Meeting of the American Association of Physicists in Medicine with the Radiological Society of North America, Nov. 26-Dec. 1, Chicago, Illinois. Contact: AAPM, phone 212-661-9404.

Scientific Basis for Nuclear Waste Management XIX: Symposium V of the 1995 Materials Research Society Fall Meeting, Nov. 27-Dec. 1, Boston, Massachusetts. Contact: William M. Murphy, phone 210-522-5263, or Dieter Knecht, phone 208-526-3627.

ANS International Topical Meeting on Managing Plant Life, Nov. 28-30, 1995, Nice, France. Contact: Dr. S. Charbonneau, Tour Fiat, Cedex 16, F-92024, Paris, France.

4th Annual Meeting of the Council on Ionizing Radiation Measurements and Standards (CIRMS), Nov. 28-30, 1995, Gaithersburg, Maryland. Contact: Katy Nardi, phone 301-840-1812.

December 1995

11th International Conference on Packaging and Transportation of Radioactive Materials, Dec. 3-8, 1995, Las Vegas, Nevada. Contact: Laura Dechter, Social & Scientific Systems, Inc., 7101 Wisconsin Ave., Bethesda, MD 20814-4805 (phone 301-986-4870; fax 301-913-0351).

January 1996

29th Midyear Topical Meeting of the Health Physics Society: Naturally Occurring and Accelerator Produced Radioactive Material--Regulation and Risk Assessment, Jan. 7-10, 1996, Scottsdale, Arizona. Contact: HPS Secretariat, Suite 402, 1313 Dolley Madison Blvd., McLean, VA 22101.

96th Annual Meeting of the American College of Nuclear Physicians, Jan. 14-18, 1996, San Juan, Puerto Rico. Contact: American College of Nuclear Physicians, Mr. H. Johnson, Suite 700, 1101 Connecticut Ave. NW, Washington, DC 20036.

February 1996

Waste Management Meeting: HLW, LLW, Mixed Wastes and Environmental Restoration -- Working Towards a Cleaner Environment, Feb. 25-29, 1996, Tucson, Arizona. Contact: WM Symposia, Inc., 245 South Plumer, Suite 19, Tucson, AZ 85719 (fax 520-792-3993).

March 1996

3rd ASME/JSME International Conference on Nuclear Engineering, Mar. 10-13, 1996, New Orleans, Louisiana. Contact: ASME Meetings Dept., P.O. Box 2900, 22 Law Drive, Fairfield, NJ 07007-2900 USA (fax: 201-882-1717 or 201-882-5155; email infocentral@asmi.org).

1996 HEART Conference, Mar. 1821, 1996, Orlando, Florida. Contact: William A. Seidler, JAYCOR, Suite 110, 4970 Corporate Drive, Huntsville, AL 35805 (phone 205-837-9100).

Occupational & Environmental Radiation Protection, March 25-29, 1996, a course offered by the Harvard School of Public Health. Contact: Harvard School of Public Health, Office of Continuing Education, 677 Huntington Ave., LL-23, Dept. B, Boston, MA 02115-6023 (phone 617-432-1171; fax 617-432-1969; email contedu@sph.harvard.edu).

April 1996

Annual Meeting of the National Council on Radiation Protection and Measurements, Apr. 3-4, 1996, Arlington, Virginia. Contact: Natl. Council on Radiation, Protection and Measurements, Suite 800, 7910 Woodmont Ave., Bethesda, MD 20814 (fax 301-907-8768).

U.S. Nuclear Regulatory Commission Regulatory Information Conference, Apr. 9-11, 1996, Washington, D.C. Contact: Anna May Haycraft, U. S. Nuclear Regulatory Commission , Office of NRR, 12H5, Washington, DC 20555 (phone 301-504-3075).

Annual Meeting of the Radiation Research Society, Apr. 13-18, 1996, Chicago, Illinois. Contact: Radiation Research Society, M. G. Watson, Suite 600, 2021 Spring Rd., Oak Brook, IL 60521.

IRPA9, 1996 International Congress on Radiation Protection, Apr. 14-19, 1996, Vienna, Austria. Contact: Congress Secretariat, IRPA9 Congress Organizing Committee, Austropa-Interconvention, P.O. Box 30, A-1043 Vienna, Austria.

Radiation Protection and Shielding Division Topical Meeting on Advancements and Applications in Radiation Protection and Shielding, Apr. 21-25, 1996, Falmouth, Massachusetts. Contact: Keith Spinney, Yankee Atomic Electric Company, 580 Main St., Bolton, MA 01740-1398 (phone 508-568-2039; fax 508-568-3700; email spinney@yankee.com).

International High-Level Radioactive Waste Management Conference, Apr. 29-May 3, 1996, Las Vegas, Nevada, sponsored by the American Nuclear Society. Contact: ANS, Meetings Dept. 555 North Kensington Ave., La Grange Park, IL 60525 (fax 708-352-6464).

June 1996

Management & Disposal of Radioactive Waste, June 10-14, 1996, a course offered by the Harvard School of Public Health. Contact: Harvard School of Public Health, Office of Continuing Education, 677 Huntington Ave., LL-23, Dept. B, Boston, MA 02115-6023 (phone 617-432-1171; fax 617-432-1969; email contedu@sph.harvard.edu).

Planning for Nuclear Emergencies, June 17-21, 1996, a course offered by the Harvard School of Public Health. Contact: Harvard School of Public Health, Office of Continuing Education, 677 Huntington Ave., LL-23, Dept. B, Boston, MA 02115-6023 (phone 617-432-1171; fax 617-432-1969; email contedu@sph.harvard.edu).

Atmospheric Science & Radioactivity Releases, June 24-26, 1996, a course offered by the Harvard School of Public Health. Contact: Harvard School of Public Health, Office of Continuing Education, 677 Huntington Ave., LL-23, Dept. B, Boston, MA 02115-6023 (phone 617-432-1171; fax 617-432-1969; email contedu@sph.harvard.edu).

July 1996

38th Annual Meeting of the American Association of Physicists in Medicine, July 21-25, 1996, Philadelphia, Pennsylvania. Contact: Ms. A. R. Keyser, One Physics Ellipse, College Park, MD 20740-3846 (fax 301-209-0862).

November 1996

International Meeting of the American Nuclear Society and the European Nuclear Society, Nov. 10-15, 1996, Washington, DC. Contact: Meetings, ANS, 555 N. Kensington Ave., La Grange Park, IL 60525 (phone: 708-352-6611; fax: 708-352-6464).