Observations of the SAA radiation distribution by Liulin-E094 instrument on ISS

Dachev, Tsvetan; Atwell, William; Semones, E.; Tomov, B.; Reddell, Brandon

doi:10.1016/j.asr.2006.01.001

Cited by 33 publications

(22 citation statements)

References 3 publications

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“…Liulin-E094 was part of the experiment Dosimetric Mapping-E094 headed by Dr. Reitz that was placed in the US Laboratory Module of the ISS as a part of Human Research Facility of Expedition Two Mission 5A.1 in MayAugust, 2001(Reitz et al, 2005Dachev et al, 2006;Wilson et al, 2007;Nealy et al, 2007).…”

Section: Instrumentationmentioning

confidence: 99%

Relativistic electrons high doses at International Space Station and Foton M2/M3 satellites

Dachev¹,

Tomov²,

Matviichuk³

et al. 2009

Advances in Space Research

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Section: Instrumentationmentioning

confidence: 99%

Relativistic electrons high doses at International Space Station and Foton M2/M3 satellites

Dachev¹,

Tomov²,

Matviichuk³

et al. 2009

Advances in Space Research

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“…Consistent differences for these two modes are observed, and result from the directional environment as well as location and directional dependent shield distributions. Such differences in dosimetry of the ascending and descending trajectories has been previously investigated by Dachev et al (2006) and Hugger et al (2003).…”

Section: Mission Segment Datamentioning

confidence: 99%

“…The present step of model validation will focus on the ISS DOSMAP Experiment (E094, PI: Dr. Günther Reitz, DLR) consisting of passive thermo-luminescent detectors (TLD), passive nuclear track detector packages (NTDPs), active dosimeter telescopes (DOSTELs), and mobile dosimeter units (MDUs, identified as Liulin-E094, PI: Dr. T. Dachev 2006). The Liulin energy loss spectra have been correlated to the NTDP derived liner enetgy transfer (LET) spectra by dividing the MDU energy loss spectra by the Liulin detector thickness of 0.306 mm Si and conversion to equivalent water.…”

Section: Model Validationmentioning

confidence: 99%

Pre-engineering spaceflight validation of environmental models and the 2005 HZETRN simulation code

Nealy

Cucinotta

Wilson

et al. 2007

Advances in Space Research

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The HZETRN code has been identified by NASA for engineering design in the next phase of space exploration highlighting a return to the Moon in preparation for a Mars mission. In response, a new series of algorithms beginning with 2005 HZETRN, will be issued by correcting some prior limitations and improving control of propagated errors along with established code verification processes. Code validation processes will use new/improved low Earth orbit (LEO) environmental models with a recently improved International Space Station (ISS) shield model to validate computational models and procedures using measured data aboard ISS. These validated models will provide a basis for flight-testing the designs of future space vehicles and systems of the Constellation program in the LEO environment.

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“…This is clearly displayed in Fig. 9 and analyzed in detail by Dachev (2006). The measured cumulative dose is compared with the modeled dose in Fig.…”

Section: Preliminary Evaluation Of Mdu#1mentioning

confidence: 99%

Time serial analysis of the induced LEO environment within the ISS 6A

Wilson

Nealy

Dachev

et al. 2007

Advances in Space Research

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Anisotropies in the low Earth orbit (LEO) radiation environment were found to influence the thermoluminescence detectors (TLD) dose within the (International Space Station) ISS 7A Service Module. Subsequently, anisotropic environmental models with improved dynamic time extrapolation have been developed including westward and northern drifts using AP8 Min & Max as estimates of the historic spatial distribution of trapped protons in the 1965 and 1970 era, respectively. In addition, a directional dependent geomagnetic cutoff model was derived for geomagnetic field configurations from the 1945 to 2020 time frame. A dynamic neutron albedo model based on our atmospheric radiation studies has likewise been required to explain LEO neutron measurements. The simultaneous measurements of dose and dose rate using four Liulin instruments at various locations in the US LAB and Node 1 has experimentally demonstrated anisotropic effects in ISS 6A and are used herein to evaluate the adequacy of these revised environmental models.

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Observations of the SAA radiation distribution by Liulin-E094 instrument on ISS

Cited by 33 publications

References 3 publications

Relativistic electrons high doses at International Space Station and Foton M2/M3 satellites

Relativistic electrons high doses at International Space Station and Foton M2/M3 satellites

Pre-engineering spaceflight validation of environmental models and the 2005 HZETRN simulation code

Time serial analysis of the induced LEO environment within the ISS 6A

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