alexa Radiation transport modeling and assessment to better predict radiation exposure, dose, and toxicological effects to human organs on long duration space flights.
Engineering

Engineering

Journal of Aeronautics & Aerospace Engineering

Author(s): Denkins P, Badhwar G, Obot V, Wilson B, Jejelewo O, Denkins P, Badhwar G, Obot V, Wilson B, Jejelewo O, Denkins P, Badhwar G, Obot V, Wilson B, Jejelewo O, Denkins P, Badhwar G, Obot V, Wilson B, Jejelewo O

Abstract Share this page

Abstract NASA is very interested in improving its ability to monitor and forecast the radiation levels that pose a health risk to space-walking astronauts as they construct the International Space Station and astronauts that will participate in long-term and deep-space missions. Human exploratory missions to the moon and Mars within the next quarter century, will expose crews to transient radiation from solar particle events which include high-energy galactic cosmic rays and high-energy protons. Because the radiation levels in space are high and solar activity is presently unpredictable, adequate shielding is needed to minimize the deleterious health effects of exposure to radiation. Today, numerous models have been developed and used to predict radiation exposure. Such a model is the Space Environment Information Systems (SPENVIS) modeling program, developed by the Belgian Institute for Space Aeronautics. SPENVIS, which has been assessed to be an excellent tool in characterizing the radiation environment for microelectronics and investigating orbital debris, is being evaluated for its usefulness with determining the dose and dose-equivalent for human exposure. Thus far. the calculations for dose-depth relations under varying shielding conditions have been in agreement with calculations done using HZETRN and PDOSE, which are well-known and widely used models for characterizing the environments for human exploratory missions. There is disagreement when assessing the impact of secondary radiation particles since SPENVIS does a crude estimation of the secondary radiation particles when calculating LET versus Flux. SPENVIS was used to model dose-depth relations for the blood-forming organs. Radiation sickness and cancer are life-threatening consequences resulting from radiation exposure. In space. exposure to radiation generally includes all of the critical organs. Biological and toxicological impacts have been included for discussion along with alternative risk mitigation methods--shielding and anti-carcinogens. c 2001. Elsevier Science Ltd. All rights reserved.
This article was published in Acta Astronaut and referenced in Journal of Aeronautics & Aerospace Engineering

Relevant Expert PPTs

Relevant Speaker PPTs

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

agriaquaculture@omicsonline.com

1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

biochemjournals@omicsonline.com

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

business@omicsonline.com

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

chemistryjournals@omicsonline.com

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

clinicaljournals@omicsonline.com

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

engineeringjournals@omicsonline.com

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

nutritionjournals@omicsonline.com

1-702-714-7001Extn: 9042

General Science

Andrea Jason

generalscience@omicsonline.com

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

geneticsmolbio@omicsonline.com

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

immunomicrobiol@omicsonline.com

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

materialsci@omicsonline.com

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

nursinghealthcare@omicsonline.com

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

medicaljournals@omicsonline.com

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

neuropsychology@omicsonline.com

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

pharmajournals@omicsonline.com

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

social_politicalsci@omicsonline.com

1-702-714-7001Extn: 9042

 
© 2008- 2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords