RAD750
Template:Short description Script error: No such module "Infobox".Template:Template otherScript error: No such module "Check for unknown parameters". Script error: No such module "Sidebar". The RAD750 is a radiation-hardened single-board computer manufactured by BAE Systems Electronics, Intelligence & Support.[1] The successor of the RAD6000, the RAD750 is for use in high-radiation environments experienced on board satellites and spacecraft.[2] The RAD750 was released in 2001, with the first units launched into space in 2005.[1][3]
Technology
The CPU has 10.4 million transistors, an order of magnitude more than the RAD6000 (which had 1.1 million).[3] It is manufactured using either 250 or 150 nm photolithography and has a die area of 130 mm2.[1] It has a core clock of 110 to 200 MHz and can process at 266 MIPS or more.[1] The CPU can include an extended L2 cache to improve performance.[3] The CPU can withstand an absorbed radiation dose of 2,000 to 10,000 grays (200,000 to 1,000,000 rads), temperatures between −55 °C and 125 °C, and requires 5 watts of power.[1][3] The standard RAD750 single-board system (CPU and motherboard) can withstand 1,000 grays (100,000 rads), temperatures between −55 °C and 70 °C, and requires 10 watts of power.[3]
The RAD750 system has a price that is comparable to the RAD6000, the latter of which as of 2002 was listed at US$200,000 (Expression error: Unrecognized punctuation character "[".).[4] Customer program requirements and quantities, however, greatly affect the final unit costs.Template:Fact
The RAD750 is based on the PowerPC 750.[1] Its packaging and logic functions are completely compatible with the PowerPC 7xx family.[3]
The term RAD750 is a registered trademark of BAE Systems Information and Electronic Systems Integration Inc.[5]
Deployment
In 2010, it was reported that there were over 150 RAD750s used in a variety of spacecraft.[6] Notable examples,[2] in order of launch date, include:
- Deep Impact comet-chasing spacecraft, launched in January 2005Template:Snd first to use the RAD750 computer.[2]
- XSS 11, small experimental satellite, launched 11 April 2005.[2]
- Mars Reconnaissance Orbiter, launched 12 August 2005.[2]
- SECCHI (Sun Earth Connection Coronal and Heliospheric Investigation) instrument package[7] on each of the STEREO spacecraft, launched 15 October 2006.
- WorldView-1 satellite, launched 18 September 2007, has two RAD750s.[6]
- Fermi Gamma-ray Space Telescope, formerly GLAST, launched 11 June 2008.
- Kepler space telescope, launched in March 2009.[2]
- Lunar Reconnaissance Orbiter, launched on 18 June 2009.
- Wide-field Infrared Survey Explorer (WISE), launched 14 December 2009.[8]
- Solar Dynamics Observatory, launched 11 February 2010.
- Juno spacecraft, launched 5 August 2011.[9]
- Curiosity rover, launched 26 November 2011.[10]
- Van Allen Probes, launched on 30 August 2012.[11]
- InSight, launched on 5 May 2018.[12]
- Perseverance rover, launched 30 July 2020.[13]
- James Webb Space Telescope, launched 25 December 2021, uses one RAD750 clocked at 118 MHz.[14]
- Global Precipitation Measurement Core Observatory
References
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- ↑ a b Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ BAE Systems Space Computer Gives Wisdom To The WISE, spacedaily.com, 2009-12-22.
- ↑ Script error: No such module "citation/CS1".
- ↑ NASA Launches Most Capable and Robust Rover to Mars Template:Webarchive.
- ↑ Van Allen Probes Launch.
- ↑ Preview of the InSight Mars launch.
- ↑ Script error: No such module "citation/CS1".
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External links
- Radiation-Hardened Processors Products from BAE Systems
- BAE Systems’ Radiation-hardened electronics product guide (PDF), from BAE Systems
- BAE Systems RAD750 processor JTAG Emulator from Corelis.com
- The CPUs of Spacecraft Computers in Space
- NASA’s latest Mars rover has the same processor as an iMac from 1998