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Results for “TRIGA”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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8 records

All sources NASA NTRS DOE OSTI

NASA NTRS2006

TRIGA: Telecommunications Protocol Processing Subsystem Using Reconfigurable Interoperable Gate Arrays

We present the Telecommunications protocol processing subsystem using Reconfigurable Interoperable Gate Arrays (TRIGA), a novel approach that unifies fault tolerance, error correction coding and interplanetary communication protocol off-loading to implement CCSDS File Delivery Protocol and Datalink layers. The new reconfigurable architecture offers more than one order of magnitude throughput increase while reducing footprint requirements in memory, command and data handling processor utilization, communication system interconnects and power consumption.

protocol processing hardware engine↗

NASA NTRS1968

Optical absorption in fused silica during TRIGA reactor pulse irradiation

Spectral transmission characteristics of fused silica before, during, and after exposure to reactor irradiation pulses

De Crescente, M. A.↗

NASA NTRS1968

Optical absorption and fluorescence in fused silica during TRIGA pulse irradiation

Spectral transmission measurements on fused silica during and after exposure to pulsed neutron irradiation

Gagosz, R.↗

NASA NTRS2006

Evaluation of the Telecommunications Protocol Processing Subsystem Using Reconfigurable Interoperable Gate Array

The current implementation of the Telecommunications Protocol Processing Subsystem Using Reconfigurable Interoperable Gate Arrays (TRIGA) is equipped with CFDP protocol and CCSDS Telemetry and Telecommand framing schemes to replace the CPU intensive software counterpart implementation for reliable deep space communication. We present the hardware/software co-design methodology used to accomplish high data rate throughput. The hardware CFDP protocol stack implementation is then compared against the two recent flight implementations. The results from our experiments show that TRIGA offers more than 3 orders of magnitude throughput improvement with less than one-tenth of the power consumption.

protocol processing hardware↗

NASA NTRS1971

Correlation of volcanic ash deposits by activation analysis of glass separates

Cascade mountains volcanic ash deposits elemental abundances correlation by computerized gamma ray spectra analysis of TRIGA reactor activated glass separates

Borchardt, G. A.↗

NASA NTRS1979

University of Illinois nuclear pumped laser program

The development of nuclear pumped lasers with improved efficiency, energy storage capability, and UF6 volume pumping is reviewed. Results of nuclear pumped laser experiments using a TRIGA-type pulsed reactor are outlined.

Miley, G. H.↗

NASA NTRS1981

An experimental investigation of 235 sub UF sub 6 fission produced plasmas

A gas handling system capable of use with uranium fluoride was designed and constructed for use with nuclear pumped laser experiments using the TRIGA research reactor. By employing careful design and temperature controls, the UF6 can be first transported into the irradiation chamber, and then, at the conclusion of the experiment, returned to gas cylinders. The design of the system is described. Operating procedures for the UF6 and gas handling systems are included.

Miley, G. H.↗

NASA NTRS2006

Telecommunications Protocol Processing Subsystem Using Reconfigurable Interoperable Gate Arrays

Deep Space Telecommunications Requirements: 1) Automated file transfer across inter-planetary distances; 2) Limited communication periods; 3) Reliable transport; 4) Delay and Disruption Tolerant; and 5) Asymmetric Data Channels.

TRIGA↗