USA flag logo/image

An Official Website of the United States Government

Fast Neutron Dosimeter for the Space Environment

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
Program Year/Program:
2011 / SBIR
Agency Tracking Number:
094841
Solicitation Year:
2009
Solicitation Topic Code:
X14.01
Solicitation Number:
Small Business Information
RADIATION MONITORING DEVICES, INC.
44 HUNT ST WATERTOWN, MA 02472-4699
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2011
Title: Fast Neutron Dosimeter for the Space Environment
Agency: NASA
Contract: NNX11CA24C
Award Amount: $599,993.00
 

Abstract:

Model calculations and risk assessment estimates indicate that secondary neutrons, with energies ranging between 0.5 to >150 MeV, make a significant contribution to the total absorbed dose received by space crews during long duration space missions [1-3]. Advanced scintillation materials, which exhibit radiation type and mass dependent emission times, coupled to SSPM detectors, provide the optimum volume to payload performance and the ability to easily discriminate between the fraction of dose, which results from secondary neutrons, and that which results from exposure to energetic charged particles and background gamma-rays.The Phase-1 effort successfully characterized the critical components of the proposed dosimeter, specifically, the response of the scintillation material to irradiation by gamma-rays, protons, and neutrons, as well as the performance of the SSPM detector. The Phase-1 modeling studies provide a critical foundation for assessing the anticipated signals in the space radiation environment. The proposed dosimeter would overcome many of the limitations in the current generation of neutron dosimeters, and would provide baseline information on the physics, needed with the information from biological studies, to assess risk in future human-space-exploration missions to the moon and Mars.

Principal Investigator:

James Christian
Principal Investigator
6166686897
jchristian@rmdinc.com

Business Contact:

Gerald Entine
President
6176176800
gentine@rmdinc.com
Small Business Information at Submission:

Radiation Monitoring Devices, Inc.
44 Hunt Street Watertown, MA -

EIN/Tax ID: 262897516
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No