Approximating Shielding Effects on Galactic Cosmic Radiation Effective Dose Rate Calculations During Extreme Altitude and Sub-Orbital Flights Using CARI-7/7A

Copeland, Kyle; Civil Aerospace Medical Institute

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Approximating Shielding Effects on Galactic Cosmic Radiation Effective Dose Rate Calculations During Extreme Altitude and Sub-Orbital Flights Using CARI-7/7A

2017-06-01
By Copeland, Kyle

[PDF-4.25 MB]

English

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Creators:

Copeland, Kyle
Corporate Creators:

Civil Aerospace Medical Institute
Corporate Contributors:

United States. Office of Aerospace Medicine
Subject/TRT Terms:

[+]

Altitude Attitude (Flight Dynamics) CARI-7 Cosmic Rays Crewmember Dosimetry Extreme-altitude Flight Galactic Cosmic Radiation In-flight Radiation Exposure Radiation Hazards Sub-orbital Flight
Publication/ Report Number:

DOT/FAA/AM-17/8
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Office of Aerospace Medicine
Abstract:

The dominant source of ionizing radiation in the aerospace environment is galactic cosmic radiation (GCR). Traditionally, calculations of exposure rates for vehicle occupants in aircraft have not included vehicle structure; while in spacecraft, vehicle structure is considered without atmosphere. This report describes modifications applicable to CARI-7 and CARI-7A to allow inclusion of the effects of vehicle structure on calculations of effective dose rate from GCR throughout a suborbital mission in a lightly shielded vehicle (<20 g/cm2). Required coefficients and an example of the technique are provided for aluminum shielding. While results are considerably different than if shielding were entirely neglected, they vary by less than 8% from the simple approximation of 1:1 substitution of additional atmospheric depth for aluminum.
Format:

PDF
Collection(s):

FAA Civil Aerospace Medical Institute US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:9916c2ee5c41677d3981c09ed449f988c5bcc00e5edc14d2093c547665adc478
Download URL:

https://rosap.ntl.bts.gov/view/dot/37291/dot_37291_DS1.pdf
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Approximating Shielding Effects on Galactic Cosmic Radiation Effective Dose Rate Calculations During Extreme Altitude and Sub-Orbital Flights Using CARI-7/7A

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