Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Brandon Reddell"'
Autor:
Brandon Reddell, Charles M. Werneth, John W. Wilson, Amir A. Bahadori, Tony C. Slaba, Francis F. Badavi
Publikováno v:
Life sciences in space research. 26
3DHZETRN-v2 includes a detailed three dimensional (3D) treatment of neutron/light-ion transport based on a quasi-elastic/multiple production assumption allowing improved agreement of the neutron/light-ion fluence compared with results of three Monte
Publikováno v:
Life Sci Space Res (Amst)
For the first time, the American (NASA) and Russian (ROSCOSMOS) space radiation transport codes, HZETRN and SHIELD respectively, are directly compared to each other. Calculations are presented for Galactic Cosmic Ray (GCR) minimum Hydrogen, Oxygen an
Autor:
Brandon Reddell, Steve R. Blattnig, Robert C. Singleterry, Amir A. Bahadori, Tony C. Slaba, Martha S. Clowdsley
Publikováno v:
Life Sciences in Space Research. 12:1-15
Models have been extensively used in the past to evaluate and develop material optimization and shield design strategies for astronauts exposed to galactic cosmic rays (GCR) on long duration missions. A persistent conclusion from many of these studie
Publikováno v:
Life Sciences in Space Research. 9:77-83
A computationally efficient 3DHZETRN code with enhanced neutron and light ion (Z ≤ 2) propagation was recently developed for complex, inhomogeneous shield geometry described by combinatorial objects. Comparisons were made between 3DHZETRN results a
Publikováno v:
Life Sciences in Space Research. 7:27-38
The 3DHZETRN formalism was recently developed as an extension to HZETRN with an emphasis on 3D corrections for neutrons and light ions. Comparisons to Monte Carlo (MC) simulations were used to verify the 3DHZETRN methodology in slab and spherical geo
Publikováno v:
Life Sciences in Space Research. 4:46-61
A computationally efficient 3DHZETRN code capable of simulating High (H) Charge (Z) and Energy (HZE) and light ions (including neutrons) under space-like boundary conditions with enhanced neutron and light ion propagation was recently developed for a
Autor:
Jaime Cooper, Larry W. Mason, Scott A. Wheeler, Theodore Kalb, Elden Beach, Chirag Patel, Kyson V. Nguyen, Brandon Reddell, Charles R. Bailey, Razvan Gaza, Patrick M. O'Neill
Publikováno v:
2017 IEEE Radiation Effects Data Workshop (REDW).
We present the results of Single Event Effects (SEE) testing with high energy protons and with low and high energy heavy ions for electrical components considered for Low Earth Orbit (LEO) and for deep space applications.
Publikováno v:
Life Sciences in Space Research. 2:6-22
The computationally efficient HZETRN code has been used in recent trade studies for lunar and Martian exploration and is currently being used in the engineering development of the next generation of space vehicles, habitats, and extra vehicular activ
Autor:
Ryan B. Norman, Francis F. Badavi, Tony C. Slaba, Steve R. Blattnig, Amir A. Bahadori, Brandon Reddell
Publikováno v:
Advances in Space Research. 52:62-78
Recent work has indicated that pion production and the associated electromagnetic (EM) cascade may be an important contribution to the total astronaut exposure in space. Recent extensions to the deterministic space radiation transport code, HZETRN, a
Autor:
B. H. Jones, C.C. Foster, P. M. O’Neill, J. H. Warner, N. J-M Roche, K. V. Nguyen, S. P. Buchner, Brandon Reddell
Publikováno v:
IEEE Transactions on Nuclear Science. 59:2909-2913
The Variable Depth Bragg Peak (VDBP) method uses long-range high-energy heavy ions to measure the Single Event Effect (SEE) cross-section as a function of linear energy transfer (LET(Si)) for commercially packaged integrated circuits with sensitive v