LAWRENCE W. TOWNSEND


TECHNICAL REPORTS

NASA, Peer-Reviewed

1. Townsend, L.W.: Optical Model Abrasion Cross Sections for High-Energy Heavy Ions. NASA TP 1893. July 1981.

2. Townsend, L.W.: Harmonic Well Matter Densities and Pauli Correlation Effects in Heavy-Ion Collisions. NASA TP 2003, April 1982.

3. Townsend, L.W.; Wilson, J.W.; and Bidasaria, H.B.: Heavy-Ion Total and Absorption Cross Sections Above 25 MeV/Nucleon. NASA TP 2138, April 1983.

4. Townsend, L.W.; Wilson, J.W.; and Bidasaria, H.B.: Nucleon and Deutron Scattering Cross Sections from 25 MeV/Nucleon to 22.5 GeV/Nucleon. NASA TM 84636, May 1983.

5. Townsend, L.W.: Ablation Effects in Oxygen-Lead Fragmentation at 2.1 GeV/Nucleon. NASA TM-85704, February 1984.

6. Townsend, L.W.; Wilson, J.W.; and Bidasaria, H.B.: Neon Transport in Selected Organic Composites. NASA TM-85693, February, 1984.

7. Townsend, L.W.; Wilson, J.W.; Norbury, J.W.; and Bidasaria, H.B.: An Abrasion-Ablation Model Description of Galactic Heavy Ion Fragmentation. NASA TP 2305, April 1984.

8. Townsend, L.W.: Galactic Heavy Ion Shielding Using Electrostatic Fields. NASA TM 86265, September 1984.

9. Norbury, J.W.; Townsend, L.W.; and Deutchman, P.A.: A T-Matrix Theory of Galactic Heavy Ion Fragmentation. NASA TP 2363, January 1985.

10. Townsend, L.W.; and Norbury, J.W.: Charge-to-Mass Dispersion Methods for Abrasion-Ablation Fragmentation Models. NASA TM 86340, March 1985.

11. Townsend, L.W.; and Wilson, J.W.: Tables of Nuclear Cross Sections for Galactic Cosmic Rays: Absorption Cross Sections. NASA RP 1134, May 1985.

12. Norbury, J.W.; Townsend, L.W.; and Deutchman, P.A.: Second Quantization Techniques in the Scattering of Non-Identical Composite Bodies. NASA TP-2522, January 1986.

13. Norbury, J.W. and Townsend, L.W.: Electromagnetic Dissociation Effects in Galactic Heavy Ion Fragmentation. NASA TP-2527, February 1986.

14. Norbury, J.W.; Townsend, L.W.; and Deutchman, P.A.: Symmetry Considerations in the Scattering of Identical Composite Bodies. NASA TP 2548, March 1986.

15. Townsend, L.W.; Wilson, J.W.; Cucinotta, F.A.; and Norbury, J.W.: Optical Model Calculations of Heavy Ion Target Fragmentation. NASA TM 87692, July 1986.

16. Norbury, J.W.; Cucinotta, F.A.; Deutchman, P.A.; and Townsend, L.W.: Cross Section Calculations for Subthreshold Pion Production in Peripheral Heavy Ion Collisions. NASA TP 2600, August 1986.

17. Cucinotta, F.A.: Norbury, J.W.; Khandelwal, G.S.; and Townsend, L.W.: Doubly Differential Cross Sections for Galactic Heavy Ion Fragmentation. NASA TP 2659, February 1987.

18. Buck, W.W.; Wilson, J.W.; Townsend, L.W.; and Norbury, J.W.: Possible Complementary Cosmic Ray Systems: Nuclei and Antinuclei. NASA TP 2741, July 1987.

19. Norbury, J.W.; Townsend, L.W.; and Badavi, F.F.: Computer Program for Parameterization of Nucleus-Nucleus Electromagnetic Dissociation Cross Sections. NASA TM 4038, June 1988.

20 Wilson, J.W.; Townsend, L.W.; Chun, S.Y.; Buck, W.W.; Khan, F.; and Cucinotta, F.A.: BRYNTRN: A Baryon Transport Computer Code; Computation Procedures and Data Base. NASA TM 4037, June 1988.

21. Badavi, F.F.; Norbury, J.W.; Wilson, J.W.; and Townsend, L.W.: Accuracy of Analytic Energy Level Formulas Applied to Hadronic Spectroscopy of Heavy Mesons. NASA TM 4042, July 1988.

22. Wilson, J.W.; Townsend, L.W.; Buck, W.W.; Chun, S.Y.; Hong, B.S.; and Lamkin, L.S.: Nucleon-Nucleus Interaction Data Base: Total Nuclear and Absorption Cross Sections. NASA TM 4053, August 1988.

23. Cucinotta, F.A.; Khandelwal, G.S.; Maung, K.M.; Townsend, L.W.; and Wilson, J.W.: Eikonal Solutions to Optical Model Coupled Channel Equations. NASA TP 2830, November 1988.

24. Norbury, J.W.; Deutchman, P.A.; Townsend, L.W.; and Cucinotta, F.A.: A General Formalism for Phase Space Calculations. NASA TP 2843, November 1988.

25. Cucinotta, F.A.; Norbury, J.W.; and Townsend, L.W.: Multiple Knockout by Coulomb Dissociation in Relativistic Heavy Ion Collisions. NASA TM 4070, November 1988.

26. Nealy, J.W.; Wilson, J.W.; and Townsend, L.W.: Solar Flare Shielding with Regolith at a Lunar Base Site. NASA TP 2869, December 1988.

27. Ganapol, B.D.; Townsend, L.W.; and Wilson, J.W.: Benchmark Solutions for the Galactic Heavy Ion Transport Equation: Energy-and Spatially Independent Problems. NASA TP 2878, February 1989.

28. Wilson, J.W.; Townsend, L.W.; Chun, S.Y.; Lamkin, S.L.; Ganapol, B.D.; Hong, B.A.; Buck, W.W.; Khan, F.; Cucinotta, F.; Nealy, J.E.: BRYNTRN: A Baryon Transport Model. NASA TP 2887, March 1989.

29. Wilson, J.W.; Lamkin, S.L.; Farhat, H.; Ganapol, B.D.; and Townsend, L.W.: A Hierarchy of Transport Approximations for High Energy Heavy (HZE) Ions. NASA TM 4118, July 1989.

30. Norbury, J.W.; and Townsend, L.W.: Calculation of Two-Neutron Multiplicity in Photonuclear Reactions. NASA TP 2968, January 1990.

31. Townsend, L.W.; Nealy, J.E.; Wilson, J.W.; and Simonsen, L.C.: Estimates of Galactic Cosmic Ray Shielding Requirements During Solar Minimum. NASA TM 4167, February 1990.

32. Simonsen, L.C.; Nealy, J.E.; Townsend, L.W.; and Wilson, J.W.: Radiation Exposure for Manned Mars Surface Missions. NASA TP 2979, March 1990.

33. Wilson, J.W.; Khandelwal, G.S.; Shinn, J.L.; Nealy, J.E.; Townsend, L.W.; and Cucinotta, F.A.: A Simplified Model for Solar Cosmic Ray Exposure in Manned Earth Orbital Flights. NASA TM 4182, May 1990.

34. Wilson, J.W.; Nealy, J.E.; Atwell, W.; Cucinotta, F.A.; Shinn, J.L.; and Townsend, L.W.: Improved Model for Solar Cosmic Ray Exposure in Manned Earth Orbital Flights. NASA TP 2987, June 1990.

35. Cucinotta, F.A.; Townsend, L.W.; Wilson, J.W.; and Khandelwal, G.S.: Inclusive Inelastic Scattering of Heavy Ions and Nuclear Correlations, NASA TP 3026, November 1990.

36. Nealy, J.E.; Simonsen, L.C.; Sauer H.H.; Wilson, J.W.; and Townsend, L.W.: Space Radiation Dose Analysis for Solar Flare of August 1989. NASA TM 4229, December 1990.

37. Cucinotta, F.A.; Katz, R.W.; Wilson, J.W.; Townsend, L.W.; Nealy, J.E.; and Shinn, J.: Cellular Track Model of Biological Damage to Mammalian Cell Cultures From Galactic Cosmic Rays. NASA TP 3055, February 1991.

38. Wilson, J.W.; Townsend, L.W.; Nealy, J.E.; Hardy, A.C.; Atwell, W.; and Schimerling, W.: Preliminary Analysis of a Radiobiological Experiment for LIFESAT. NASA TM 4236, February 1991.

39. Cucinotta, F.A.; Townsend, L.W.; Wilson, J.W.; and Norbury, J.W.: Corrections to the Participant-Spectator Model of High Energy Alpha Particle Fragmentation. NASA TM 4262, May 1991.

40. Cucinotta, F.A.; Atwell, W.; Weyland, M.; Hardy, A.C.; Wilson, J.W.; Townsend, L.W.; Shinn, J.; and Katz, R: Radiation Risk Predictions for Space Station Freedom Orbits. NASA TP 3098, June 1991.

41. Ganapol, B.D.; Townsend, L.W.; Lamkin, S.L.; and Wilson, J.W.: Benchmark Solutions for the Galactic Heavy Ion Transport Equations with Energy and Spatial Coupling. NASA TP 3112, October 1991.

42. Wilson, J.W.; Townsend, L.W.; Schimmerling, W.; Nealy, J.E.; Khandelwal, G.S.; Cucinotta, F.A.; Simonsen, L.C.; Khan, F.; Shinn, J.L.; and Norbury, J.W.: Transport Methods and Interactions for Space Radiations. NASA RP 1257, December 1991.

43. Cucinotta, F.A.; Townsend, L.W.; and Wilson, J.W.: Target Correlation Effects on Neutron-Nucleus Total, Absorption and Abrasion Cross Sections. NASA TM 4314, December 1991.

44. Wilson, J.W.; Chun, S.Y.; Badavi, F.F.; Townsend, L.W.; and Lamkin, S.L.: HZETRN: A Heavy Ion/Nucleon Transport Code for Space Radiations. NASA TP 3146, December 1991.

45. Cucinotta, F.A.; Townsend, L.W.; and Wilson, J.W.: Quasi-Elastic Nuclear Scattering at High Energies. NASA TM 4362, May 1992.

46. Townsend, L.W.; Cucinotta, F.A.; Shinn, J.L.; and Wilson, J.W.: Effects of Fragmentation Parameter Variations on Estimates of Galactic Cosmic Ray Exposure: Dose Sensitivity Studies for Aluminum Shields. NASA TM 4386, July 1992.

47. Shinn, J.L.; John, S.; Tripathi, R.K.; Wilson, J.W.; Townsend, L.W.; Norbury, J.W.: A Fully Energy-Dependent HZETRN (A Galactic cosmic Ray Transport Code). NASA TP 3243, November 1992.

48. Wilson, J.W.; Cucinotta, F.A.; Shinn, J.L.; and Townsend, L.W.: Target Fragmentation in Radiobiology. NASA TM 4408, February 1993.

49. Cucinotta, F.A.; Townsend, L.W.; and Wilson, J.W.: Description of Alpha-Nucleus Interaction Cross Sections for Cosmic Ray Studies. NASA TP 3285, April 1993.

50. Townsend, L.W.; Khan, F; and Tripathi, R.K.: Optical Model Calculations of 14.6A GeV Silicon Fragmentation Cross Sections. NASA TM 4461, May 1993.

51. Townsend, L.W.; Tripathi, R.K.; and Khan, F.: Comparisons of Cross Section Predictions for Relativistic Iron and Argon Beams with Semiempirical Fragmentation Models. NASA TM 4462, May 1993.

52. Townsend, L.W.; Wilson, J.W.; Tripathi, R.K.; Norbury, J.W.; Badavi, F.F.; and Khan, F.: HZEFRG1: An Energy Dependent Semiempirical Nuclear Fragmentation Model. NASA TP 3310, May 1993.

53. John, S.; Townsend, L.W.; Wilson, J.W.; and Tripathi, R.K.: Geometric Model from Microscopic Theory for Nuclear Absorption. NASA TP 3324, June 1993.

54. Cucinotta, F.A.; Townsend, L.W.; and Dubey, R.R.: Energy Loss Cross Sections for Inclusive Charge Exchange Reactions at Intermediate Energies. NASA TM 4522, November 1993.

55. Townsend, L.W.: Optical Model Analyses of Galactic Cosmic Ray Fragmentation in Hydrogen Targets. NASA TP 3404, December 1993.

56. Khan, F; and Townsend, L.W.: Momentum Loss in Proton-Nucleus and Nucleus-Nucleus Collisions. NASA TP 3405, December 1993.

57. Wilson, J.W.; Badavi, F.F.; Cucinotta, F.A.; Shinn, J.L.; Badhwar, G.D.; Silberberg, R.; Tsao, C.H.; Townsend, L.W.; and Tripathi, R.K.: HZETRN: Description of a Free-Space Ion and Nucleon Transport and Shielding Computer Program. NASA TP 3495, May 1995.

58. Cucinotta, F.A.; Wilson, J.W.; and Townsend, L.W.: Abrasion-Ablation Model for Neutron Production in Heavy Ion Reactions. NASA TM 4656, June 1995.
Return to Townsend's Homepage