IP Library › Granted Patent US 10,144,535
Granted Patent B2
US 10,144,535 · App. 14/856,174 · Granted Dec 4, 2018

Cryogenic hydrogen radiation shield for human spaceflight

Inventors: Xiaoyi Li (Clarksville, MD); Shouvanik Mustafi (Silver Spring, MD); Alvin J. Boutte (Lanham, MD)
Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
B64G1/543B64G1/58G21F1/023G21F3/00
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Quick Facts
Patent No.
US 10,144,535
App. No.
14/856,174
Granted
Dec 4, 2018
Kind
B2
Abstract

The disclosed subject matter relates to a radiation shielding apparatus including a cryogenic vessel and a cryogenic hydrogen radiation shielding material capable of providing a radiation shield, the cryogenic hydrogen radiation shielding material including cryogenic hydrogen.

Claims (11)

1. A radiation shielding apparatus, comprising:

a. an annular cryogenic vessel adjacent a circumferential side wall of a crew module; and

b. a cryogenic hydrogen radiation shielding material capable of providing a radiation shield, said cryogenic hydrogen radiation shielding material including hydrogen at a temperature of less than or equal to about 20 K,

wherein said cryogenic hydrogen radiation shielding material is contained in said annular cryogenic vessel.

2. The radiation shielding apparatus of claim 1 , wherein said cryogenic hydrogen radiation shielding material includes hydrogen at a temperature of less than or equal to about 14 K.

3. The radiation shielding apparatus of claim 1 , wherein said cryogenic hydrogen radiation shielding material includes hydrogen at a temperature of less than or equal to about 12 K.

4. The radiation shielding apparatus of claim 1 , said cryogenic hydrogen radiation shielding material including hydrogen at a temperature of from about 10 K to about 12 K.

5. The radiation shielding apparatus of claim 1 , wherein said cryogenic hydrogen radiation shielding material includes liquid hydrogen, subcooled liquid hydrogen, solid hydrogen, subcooled solid hydrogen or a mixture thereof.

6. The radiation shielding apparatus of claim 1 , wherein said cryogenic hydrogen radiation shielding material includes solid hydrogen, subcooled solid hydrogen or a mixture thereof.

7. The radiation shielding apparatus of claim 6 , wherein said annular cryogenic vessel includes an aluminum skin and aluminum foam.

8. The radiation shielding apparatus of claim 1 , wherein the cryogenic vessel includes at least one connector capable of attaching to a conduit capable of supplying or maintaining the temperature of the cryogenic hydrogen radiation shielding material.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2016
From: LI, XIAOYI; MUSTAFI, SHOUVANIK; BOUTTE, ALVIN J.
To: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
Reel/Frame 037468/0336 →
Continuity (1)
Related Publication 20170073090A1 · Mar 16, 2017