Science and Technology Science and Technology
Wed, October 3, 2012

AVX Corporation’;s Multianode Tantalum Capacitors Power Curiosity’;s ChemCam Laser on Mars


Published on 2012-10-03 10:31:28 - Market Wire
  Print publication without navigation


GREENVILLE, S.C.--([ ])--AVX Corporation, a leading manufacturer of passive components and interconnect solutions, developed and supplied the 630 tantalum multianode capacitors that are responsible for powering the ChemCam laser module on-board Curiosity, which successfully landed on Mars on August 6, 2012. The ChemCam laser module, a combination of chemistry and camera equipment, is designed to analyze the chemical composition of rocks on Mars.

On August 20th, Curiosity successfully fired its laser for the first time on Mars, interrogating a fist-sized rock called Coronation. The laser on the roveras ChemCam hit the rock with 30 pulses in a 10-second period, each of which delivered more than one million watts of power for approximately five one-billionths of a second.

The ChemCamas laser power sources had to meet extreme requirements, including small size, very lightweight packaging, and very high-power performance, and consist solely of well-established, high-reliability components. In cooperation with the Institut de Recherche en Astronomie et Plantologie (IRAP) and the Centre National d' tudes Spatiales (CNES) in Toulouse, France, part of the ChemCamas U.S.-French design team, AVXas Tantalum Division in Lanskroun, Czech Republic and Biddeford, Maine, designed a large bank of 630 tantalum multianode capacitors (470F 10V). Produced in AVXas European Space Agency (ESA)-approved manufacturing facility in Lanskroun, Czech Republic and re-tested to MIL standards at AVXas facilities in Biddeford, Maine, the devices, which were based on proven, high-quality AVX technology, provide very low ESR.

aWe are all very excited about the great success of NASAas latest Mars mission and the ChemCam project, and are delighted to be a part a" even if only a small one a" of this exciting and historic mission. This is a big step for all of us, and we wish Curiosity the best of luck,a said Tomas Zednicek, Ph.D., technical marketing manager at AVX Tantalum Division, Lanskroun, Czech Republic.

The ChemCamas laser, imager, and telescope can be pointed at rock and soil targets in the vicinity of the rover from its position on top of the mast, which is 6.6 feet (2 meters) above the ground. Laser pulses vaporize pinhead-size targets up to 32 feet (7 meters) away, producing a flash of light that is observed by the telescope as the material is ionized by the laser. An optical fiber from the mast delivers the telescopeas observation to the 7.9-inch (20 centimetre) long body unit, which analyses the light from the ionized material in order to identify the chemical composition of the target.

ChemCam was conceived, designed, and built by a joint U.S.-French team led by Los Alamos National Laboratory in Los Alamos, New Mexico; NASAas Jet Propulsion Laboratory in Pasadena, California; and the IRAP and CNES in Toulouse, France. JPL, a division of the California Institute of Technology in Pasadena, California, manages the Mars Science Laboratory mission for the NASA Science Mission Directorate in Washington, D.C.

Researchers will use the tools on-board Curiosity to study whether the landing region has ever experienced environmental conditions favourable for supporting microbial life, as well as whether environmental conditions since then enabled the preservation of clues about whether or not life existed there.

For more information, please visit [ www.avx.com ], call 864-967-2150, or write to One AVX Boulevard, Fountain Inn, S.C. 29644.

About AVX

AVX Corporation is a leading international supplier of electronic passive components and interconnect solutions with 24 manufacturing and customer support facilities in 15 countries around the world. AVX offers a broad range of devices including capacitors, resistors, filters, timing and circuit protection devices and connectors. The company is publicly traded on the New York Stock Exchange (NYSE:AVX).

Contributing Sources