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:9/20/2014)... 2014 “Motherhood is a wonderful gift and ... their latest article , “We know that you want ... that’s what we want to do as well.” , The ... should expect from their Family Physicians who practice obstetrics while ... motherhood. , To learn more about Community Health Center ...
(Date:9/20/2014)... The children of Branches now have a new ... need. An empty lot at the Trish and Dan ... into a kid-designed playspace in less than eight hours ... ESPN (@TeamESPN), Disney (@CitizenDisney), area residents and organizers from ... more than a playground. It’s a brain-expander, friend-maker, and ...
(Date:9/19/2014)... York, NY (PRWEB) September 20, 2014 ... moderate revenue growth for the Vision Insurance industry ... pace, to the detriment of industry margins. From ... noticeably increase. Industry operators provide coverage for routine ... discounted pricing for eyeglasses, contact lens and refractive ...
(Date:9/19/2014)... 2014 Are you tired of having ... with seasonal allergies or sinus congestion? Fortunately, an inventor ... , She conceived of Nose Pal to avoid ... nose in public. Since it prevents nasal drip and ... conditions, particularly when cooking or working closely with others. ...
(Date:9/19/2014)... (PRWEB) September 19, 2014 BearCom, ... solutions, today detailed the key role played by ... radios in the healthcare industry. , “In ... patient care – and in emergency situations, can ... between life and death,” said Hugh Johnston, Product ...
Breaking Medicine News(10 mins):Health News:Newest Article from Community Health Center of Snohomish County Highlights The Importance of Proper Health Care for Expectant Mothers 2Health News:Volunteers Improve Miami Kids’ Lives and Futures with Play 2Health News:Volunteers Improve Miami Kids’ Lives and Futures with Play 3Health News:Volunteers Improve Miami Kids’ Lives and Futures with Play 4Health News:Vision Insurance in the US Industry Market Research Report from IBISWorld Has Been Updated 2Health News:Vision Insurance in the US Industry Market Research Report from IBISWorld Has Been Updated 3Health News:Vision Insurance in the US Industry Market Research Report from IBISWorld Has Been Updated 4Health News:Nasal Drip Eliminator Invented by InventHelp Client (LCC-218) 2Health News:BearCom Releases Guidelines on Using Two-Way Radios to Improve Communications and Enhance Patient Service in Healthcare 2Health News:BearCom Releases Guidelines on Using Two-Way Radios to Improve Communications and Enhance Patient Service in Healthcare 3Health News:BearCom Releases Guidelines on Using Two-Way Radios to Improve Communications and Enhance Patient Service in Healthcare 4
... Personal Protective Equipment Conference 2009 (PPE 2009), which ... in Fort Lauderdale, FL, November 17 - 19, 2009, ... networking resource for firefighters, law enforcement officers, military personnel, ... technicians, veterinary specialists, rescue team members, and other first ...
... , , ... supporting breast cancer research and awareness programs, Hard Rock International ... )winner, breast cancer survivor and multi-platinum recording artist, as its ... PINKTOBER program will also be ...
... , , Atlanta to Serve as ... NEW YORK , Sept. 14 ... the Center for AIDS Research at Emory University (CFAR) in Atlanta, Georgia will ... global scientific conference focused on AIDS vaccine research. AIDS 2010 is to ...
... for Down syndrome on the horizon promising to be safer, ... medical community must come together and engage in dialogue about ... leading article published Online First by Archives of Disease ... genetics fellow at Children,s Hospital Boston, the article shows a ...
... SXC Health Solutions Corp. ("SXC" or the "Company") (NASDAQ: ... has entered into a strategic relationship with Allscripts (NASDAQ: ... (e-prescribing) options available to SXC,s healthcare benefits management customers. ... plans, employers, government agencies, pharmacy benefit managers and pharmacies ...
... Sept. 14 A call for participants has been issued in ... upon the work the IMIA started in the 1980s with the ... final written exam pilot in support of national certification. , ... and rating of test items have been finalized, it is important ...
Cached Medicine News:Health News:Personal Protective Equipment Conference Set for November 17 - 19 in Fort Lauderdale 2Health News:Hard Rock International Marks 10 Years Of Support For Breast Cancer Awareness And Research With 2009 PINKTOBER(TM) Campaign Featuring Melissa Etheridge, The Bangles, Melanie C, Joss Stone And More 2Health News:Hard Rock International Marks 10 Years Of Support For Breast Cancer Awareness And Research With 2009 PINKTOBER(TM) Campaign Featuring Melissa Etheridge, The Bangles, Melanie C, Joss Stone And More 3Health News:Hard Rock International Marks 10 Years Of Support For Breast Cancer Awareness And Research With 2009 PINKTOBER(TM) Campaign Featuring Melissa Etheridge, The Bangles, Melanie C, Joss Stone And More 4Health News:Center for AIDS Research at Emory University to Serve as Local Host of AIDS Vaccine 2010 2Health News:Center for AIDS Research at Emory University to Serve as Local Host of AIDS Vaccine 2010 3Health News:Center for AIDS Research at Emory University to Serve as Local Host of AIDS Vaccine 2010 4Health News:Understanding the implications of prenatal testing for Down syndrome 2Health News:SXC Health Solutions teams with Allscripts to deliver critical prescription information to physicians at the point-of-care 2Health News:SXC Health Solutions teams with Allscripts to deliver critical prescription information to physicians at the point-of-care 3Health News:SXC Health Solutions teams with Allscripts to deliver critical prescription information to physicians at the point-of-care 4Health News:SXC Health Solutions teams with Allscripts to deliver critical prescription information to physicians at the point-of-care 5Health News:National Certification for Medical Interpreters - Public Call for Final Written Pilot Exam 2
(Date:9/19/2014)... , Sept. 19, 2014 The Parenteral Drug ... harmonize global post-approval changes protocols. The ... the topic expressed by industry participants and regulatory authority ... this month in Washington, DC . ... on hand for the workshop. Attendees indicated openness to ...
(Date:9/19/2014)... 19, 2014 /PRNewswire-iReach/ -- "United States ... provides key market data on the ... The report provides value, in millions ... units) within market categories – Bronchoscopes, ... & Gastroscopes, Duodenoscopes, Laparoscopes, Hysteroscopes, Sinuscopes, ...
(Date:9/19/2014)... , Sept. 19, 2014  The board of ... declared a quarterly cash dividend of $0.42 per share.  ... 17, 2014 to stockholders of record at the close ... AbbVie AbbVie is a global, research-based biopharmaceutical company formed ... is to use its expertise, dedicated people and unique ...
Breaking Medicine Technology:PDA Launches Effort to Harmonize Global Post-Approval Changes Protocols 2United States General Surgery Devices Market to 2020 - Endoscopy, Bariatric Surgery, Aesthetic Lasers and Energy, Biopsy Devices, Hernia Repair, Non-Vascular Stents 2United States General Surgery Devices Market to 2020 - Endoscopy, Bariatric Surgery, Aesthetic Lasers and Energy, Biopsy Devices, Hernia Repair, Non-Vascular Stents 3United States General Surgery Devices Market to 2020 - Endoscopy, Bariatric Surgery, Aesthetic Lasers and Energy, Biopsy Devices, Hernia Repair, Non-Vascular Stents 4United States General Surgery Devices Market to 2020 - Endoscopy, Bariatric Surgery, Aesthetic Lasers and Energy, Biopsy Devices, Hernia Repair, Non-Vascular Stents 5
... 31, 2011 Reportlinker.com announces that a ... its catalogue: Germany Surgical ... http://www.reportlinker.com/p0254518/Germany-Surgical-Equipment-Market-Outlook-to-2016.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Surgical_Equipment Germany ... Summary GlobalData,s ...
... Pacira Pharmaceuticals, Inc. (Nasdaq: PCRX ), an ... the third quarter ended September 30, 2011 and provided ... (FDA) approval of EXPAREL™ (bupivacaine liposome injectable suspension) and ... "With the broad postsurgical pain management label granted ...
Cached Medicine Technology:Germany Surgical Equipment Market Outlook to 2016 2Germany Surgical Equipment Market Outlook to 2016 3Germany Surgical Equipment Market Outlook to 2016 4Germany Surgical Equipment Market Outlook to 2016 5Germany Surgical Equipment Market Outlook to 2016 6Germany Surgical Equipment Market Outlook to 2016 7Germany Surgical Equipment Market Outlook to 2016 8Germany Surgical Equipment Market Outlook to 2016 9Pacira Pharmaceuticals, Inc. Reports Third Quarter 2011 Financial Results 2Pacira Pharmaceuticals, Inc. Reports Third Quarter 2011 Financial Results 3Pacira Pharmaceuticals, Inc. Reports Third Quarter 2011 Financial Results 4Pacira Pharmaceuticals, Inc. Reports Third Quarter 2011 Financial Results 5Pacira Pharmaceuticals, Inc. Reports Third Quarter 2011 Financial Results 6Pacira Pharmaceuticals, Inc. Reports Third Quarter 2011 Financial Results 7Pacira Pharmaceuticals, Inc. Reports Third Quarter 2011 Financial Results 8Pacira Pharmaceuticals, Inc. Reports Third Quarter 2011 Financial Results 9
... immersion objective has a higher numerical aperture ... media helps eliminate surface,reflections and provides an ... excellent objective for fluorescence, brightfield and DIC ... correction collar that allows it to be ...
... is a very versatile light source ... variety of applications anytime a Zeiss ... illumination with optimum protection without heating ... most economical cold-light source that completes ...
... a complete line of ... halogen light sources that ... A solid-state dimmer provides ... our exclusive Modulamp assembly ...
Standard 20x long working distance objectives for greater magnifications of your microtools....
Medicine Products: