scholarly journals Solar particle events contribution in the space radiation exposure on electronic equipment at the polar orbit

2016 ◽  
Author(s):  
Grigory Protopopov ◽  
Vasily Anashin ◽  
Olga Kozyukova ◽  
Igor Lyakhov ◽  
Sergey Tasenko ◽  
...  
2015 ◽  
Vol 632 ◽  
pp. 012077 ◽  
Author(s):  
Vasily S Anashin ◽  
Grigory A Protopopov ◽  
Olga S Kozyukova ◽  
Ninel N Sitnikova

2007 ◽  
Vol 124 (4) ◽  
pp. 289-318 ◽  
Author(s):  
M. Takada ◽  
B. J. Lewis ◽  
M. Boudreau ◽  
H. Al Anid ◽  
L. G. I. Bennett

2008 ◽  
Vol 131 (1) ◽  
pp. 51-58 ◽  
Author(s):  
P. Beck ◽  
D. T. Bartlett ◽  
P. Bilski ◽  
C. Dyer ◽  
E. Fluckiger ◽  
...  

2017 ◽  
Vol 32 (1) ◽  
pp. 44-51 ◽  
Author(s):  
Feng Xu ◽  
Xianghong Jia ◽  
Qian Liu ◽  
Wei Lu ◽  
Zhanchun Pan ◽  
...  

In order to ensure the health and safety of female astronauts in space, the risks of space radiation should be evaluated, and effective methods for protecting against space radiation should be investigated. In this paper, a dose calculation model is established for Chinese female astronauts. The absorbed doses of some organs in two historical solar particle events are calculated using Monte Carlo methods, and the shielding conditions are 0 gcm-2 and 5 gcm-2 aluminum, respectively. The calculated results are analysed, compared, and discussed. The results show that 5 gcm-2 aluminum cannot afford enough effective protection in solar particle events. Hence, once encountering solar particle events in manned spaceflight missions, in order to ensure the health and safety of female astronauts, they are not allowed to stay in the pressure vessel, and must enter into the thicker shielding location such as food and water storage cabin.


2007 ◽  
pp. 233-243
Author(s):  
M. TAKADA ◽  
B. J. LEWIS ◽  
M. BOUDREAU ◽  
H. AL ANID ◽  
L. G. I. BENNETT

Author(s):  
Ram Tripathi ◽  
Lawrence Townsend ◽  
Tony Gabriel ◽  
Lawrence PIinsky ◽  
Tony Slaba

Aerospace ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 107
Author(s):  
Fahad A. Zaman ◽  
Lawrence W. Townsend

Solar particle events (SPEs) can pose serious threats for future crewed missions to the Moon. Historically, there have been several extreme SPEs that could have been dangerous for astronauts, and thus analyzing their potential risk on humans is an important step towards space exploration. In this work, we study the effects of a well-known SPE that occurred on 23 February 1956 on a mission in cis-Lunar space. Estimates of the proton fluence spectra of the February 1956 event were obtained from three different parameterized models published within the past 12 years. The studied geometry consists of a female phantom in the center of spherical spacecraft shielded by aluminum area densities ranging from 0.4 to 40 g cm−2. The effective dose, along with lens, skin, blood forming organs, heart, and central nervous system doses, were tallied using the On Line Tool for the Assessment of Radiation In Space (OLTARIS), which utilizes the High Z and Energy TRansport code (HZETRN), a deterministic radiation transport code. Based on the parameterized models, the results herein show that thicknesses comparable to a spacesuit might not protect against severe health consequences from a February 1956 category event. They also show that a minimum aluminum shielding of around 20 g cm−2 is sufficient to keep the effective dose and critical organ doses below NASA’s permissible limits for such event. In addition, except for very thin shielding, the input models produced results that were within good agreement, where the doses obtained from the three proton fluence spectra tended to converge with slight differences as the shielding thickness increases.


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