Navigation Links
Scientists Gauge Radiation Dose From Trip to Mars
Date:5/30/2013

THURSDAY, May 30 (HealthDay News) -- Ever dream of traveling to Mars? There could be potential health drawbacks if you did, including a hefty dose of radiation, a new study finds.

A 253-day trip to the Red Planet would expose an astronaut to the radiation equivalent of about 40 to 50 whole-body CT scans, the research estimates.

"In terms of accumulated dose, it's like getting a whole-body CT scan once every five or six days," study author Cary Zeitlin, a principal scientist at the Southwest Research Institute's Space Science and Engineering Division, said in an institute news release.

"This issue will have to be addressed, one way or another, before humans can go into deep space for months or years at a time," Zeitlin said. "Understanding the radiation environment inside a spacecraft carrying humans to Mars or other deep space destinations is critical for planning future crewed missions."

His team added that unless spacecraft propulsions systems advance very quickly, most of the radiation exposure from a Mars mission would occur during travel, when their spacecraft would be the only thing protecting astronauts from space radiation.

The data comes from a Radiation Assessment Detector (RAD) the research team had attached to the Mars Science Laboratory, which in November 2011 began a journey to Mars to deliver the Curiosity rover. The RAD recorded detailed measurements of the radiation environment inside the spacecraft.

Zeitlin's team say that while in space, astronauts face risks from two different forms of radiation: chronic low doses of galactic cosmic rays (GCRs) and short-term exposure to the solar energetic particles (SEPs) associated with solar flares and coronal mass ejections.

GCRs, the researchers explained, are highly penetrating. As a result, spacecraft shielding is much more effective against SEPs than GCRs. These high-energy particles also include a small percentage of heavy ions,
'/>"/>

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Page: 1 2

Related medicine news :

1. Scientists solving the mystery of human consciousness
2. Scientists uncover multiple faces of deadly breast cancer
3. Scientists identify major source of cells defense against oxidative stress
4. Scientists tailor cell surface targeting system to hit organelle ZIP codes
5. Scientists rewrite rulebook on breast cancer in landmark global study
6. Warwick scientists uncover how checkpoint proteins bind chromosomes
7. NIH scientists link quickly spreading gene to Asian MRSA epidemic
8. Joslin scientists identify important mechanism that affects the aging process
9. Scripps Research scientists show how memory B cells stay in class to fight different infections
10. Scientists Map Melanomas Genome
11. A*STAR scientists discover switch to boost anti-viral response to fight infectious diseases
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists Gauge Radiation Dose From Trip to Mars
(Date:12/25/2014)... Recently, iFitDress.com, the popular online supplier of ... its new selection of black one-shoulder cocktail dresses . ... they are available at discounted prices, up to 70% off. ... last for three weeks only. You know, we have thousands ... interested in our new items can visit our website for ...
(Date:12/25/2014)... sells many bamboo products and the business is famous ... announces big discounts on its bamboo mats , which ... the world’s leader in bamboo flooring. According to the ... 2015. , The bamboo mats are made from well-treated ... the bamboo strips for the mats are boiled and ...
(Date:12/25/2014)... Dennis Thompson HealthDay Reporter ... with complex chronic illnesses can receive effective, less expensive care ... easy access to a team of dedicated health care professionals, ... become seriously ill and need either hospitalization or a trip ... enhanced medical home clinic at the University of Texas in ...
(Date:12/25/2014)... Dennis Thompson HealthDay Reporter ... could be closing in on a "fountain of youth" drug ... health of older adults, a new study suggests. Seniors ... a drug that targets a genetic signaling pathway linked to ... report. The experimental medication, a version of ...
(Date:12/25/2014)... Plugin creators from Pixel Film Studios have ... business presentation tool made specifically for Final Cut ... tool, users can now display their stats and facts ... Studios. “ProFire 5k gives users a multiple options to ... a presentation” , Pixel Film Studios takes the heat ...
Breaking Medicine News(10 mins):Health News:iFitDress.com: Black One-Shoulder Cocktail Dresses for 2015 2Health News:Various Styles of Bamboo Mats in Many Colors from BambooFlooringChina.com 2Health News:Coordinated Care Through 'Medical Home' Best for Chronically Ill Kids: Study 2Health News:Coordinated Care Through 'Medical Home' Best for Chronically Ill Kids: Study 3Health News:Researchers Take 'First Baby Step' Toward Anti-Aging Drug 2Health News:Researchers Take 'First Baby Step' Toward Anti-Aging Drug 3Health News:Announcing a new ProFire 5k plugin from Pixel Film Studios for Final Cut Pro X Professionals 2
... estrogen therapy does not decrease, but may increase, the ... studies have reported an association between postmenopausal estrogen use ... of estrogen or estrogen plus progestin in women aged ... dementia. In the estrogen-only trial, researchers found 47 participants ...
... the body. Parkinson's patients are particularly at risk for ... a drug commonly used to treat the disease, produces ... patients with Parkinson’s disease who have high levels of ... worse cognitive functioning than other patients who have normal ...
... about 40 milligrams of vitamin C daily as new ... may protect against rheumatoid arthritis. ,Researchers studied 23,000 ... 74. Participants' diets were assessed by using seven-day-food-intake diaries.It ... or more joints for at least one month and ...
... symptoms of rheumatoid arthritis as well as keep cardiovascular ... have an anti-inflammatory effect and are well-known for reducing ... puts sufferers at an increased risk of cardiovascular disease. ... day of atorvastatin or a placebo in addition to ...
... testicles and cause prostate cancer cells to grow. Lowering ... grow more slowly. However, hormone therapy will not cure ... such as surgery or radiation are not good options. ... cancer significantly increases the risk of fractures.For the study ...
... be risking bone loss say researchers. Investigators tested post-menopausal women ... likely to have lower scores on heel and hip tests ... ,More than 6,000 women participated in the study.The loss ... both the heel bone and the hip. Those numbers held ...
Cached Medicine News:
(Date:12/24/2014)... FARMINGTON, Conn. , Dec. 24, ... PTN), a biopharmaceutical company developing targeted, receptor-specific peptide ... unmet medical need and commercial potential, today announced ... of 2,050,000 shares of its common stock and ... its common stock.  Funds under the management of ...
(Date:12/24/2014)... -- Echo Therapeutics, Inc. (NASDAQ: ECTE ... permeation, continuous glucose monitoring and associated technologies, today ... been appointed Chief Executive Officer effective December 22, ... of experience in the medical device, pharmaceutical and ... Vice President, Business Development, Otsuka Pharmaceuticals as well as ...
(Date:12/24/2014)... 24, 2014 LifeScienceIndustryResearch.com ... Disposable Syringe Industry of 178 pages providing ... intelligence library. The 2014 Market ... is a professional and deep research report ... analysis, the report introduces Disposable Syringe basic ...
Breaking Medicine Technology:Palatin Completes $20 Million Equity and $10 Million Debt Financings 2Palatin Completes $20 Million Equity and $10 Million Debt Financings 3Palatin Completes $20 Million Equity and $10 Million Debt Financings 4Echo Therapeutics Announces Scott W. Hollander as President & Chief Executive Officer 2Echo Therapeutics Announces Scott W. Hollander as President & Chief Executive Officer 3World Disposable Syringe Market 2014 Report: China and Regional Analysis 2World Disposable Syringe Market 2014 Report: China and Regional Analysis 3World Disposable Syringe Market 2014 Report: China and Regional Analysis 4World Disposable Syringe Market 2014 Report: China and Regional Analysis 5
... Verinata Health, Inc., a privately-held company dedicated to maternal ... corporate headquarters and laboratory operations to 800 Saginaw Drive, ... a much larger and state-of-the art facility is a ... growth and expansion expected with the launch of our ...
... PITTSBURGH, Dec. 7, 2011 HealthpointCapital, LLC ("HealthpointCapital") ... Inc. ("Blue Belt" or "Company"). Blue Belt is ... for use initially in orthopedic procedures and then ... ("ENT"). Terms of the transaction were not disclosed. ...
Cached Medicine Technology:Verinata Health Announces New Corporate Headquarters and Expanded Laboratory Operations 2HealthpointCapital Acquires Blue Belt Technologies, Inc. and Appoints Eric B. Timko as President and CEO 2
The AGC Revision Knee, extends the AGC Family to include implants for severe primary knees or revision. Provides rotational freedom of +/- 2 and varus/valgus freedom of +/- 1.5....
... been shown to produce the highest contact ... fixed bearing component. This combination of high ... loading minimizes the risk of polyethylene deterioration ... symmetrical component design streamlines inventory requirements without ...
The Advance revision knee system was designed to address the unpredictable nature of revision knee arthroplasty by providing a wide variety of implant and instrument options....
The AGC dual articular knee is indicated for severe primary or revision cases and features a patented unique articulation which allows controlled rotation of the femoral component about a central piv...
Medicine Products: