Reviewed plan of the ALR, the laser rangefinder for the ASTER deep space mission to the triple asteroid 2001-SN263

Brum, Antonio Gil Vicente de; Cruz, Flávio C.

doi:10.1088/1742-6596/911/1/012016

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…В зависимости от типа и условий применения частота следования лазерных импульсов может составлять от 1 до 20-30 Гц [8,9]. Разработка лазера в таком случае требует сохранения выходных параметров прибора в течение цикла из серии импульсов при различных частотах следования.…”

Section: Introductionunclassified

Diode-Pumped Laser for Rangefinders Operating over Wide Temperature Range

Orekhova¹,

Kisel

Orekhov³

2023

Prib. metody izmer.

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A prototype of a pulsed diode-pumped laser based on Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) crystal emitting at 1064 nm is presented for use in airborne rangefinders and atmospheric LIDARs without use of expensive production technologies and components.Actively Q-Switched laser pulse energy was estimated. Spatial characteristics of laser beam and dependence of pulse energy on the pump pulse energy were obtained at room temperature. Results of diodepumped laser pulse energy measurements are provided within 2 min for pulse repetition rates of 1, 4, 12.5, 22 Hz at ambient temperature range from -40 to +60 °C. Laser diode arrays temperature stabilization was achieved by the use of Peltier module with cooling capacity of 30 W.Pulse energy values not less than 80 mJ were achieved in the studied ranges of ambient temperature and pulse repetition rate. Laser beam divergence at room temperature does not exceed 1.9 mrad.

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Section: Introductionunclassified

Diode-Pumped Laser for Rangefinders Operating over Wide Temperature Range

Orekhova¹,

Kisel

Orekhov³

2023

Prib. metody izmer.

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“…The central motivation for such research and for the previous work, Lucas Jr. et al stand on the Brazilian space project ''ASTER'' of sending a probe to the triple asteroid system 2001SN263. 4,[9][10][11] This study will involve, after all, the use of spectrometric techniques to identify the chemical and the structural composition. Such study may identify if the satellites b and c were either formed from the main body a, or from another external asteroid.…”

Section: Introductionmentioning

confidence: 99%

Study of the Influence of Temperature on the Optical and Structural Properties of Dolomite

et al. 2020

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The present work reports the results of structural and optical investigations in samples of natural dolomite, subjected to thermal treatment at different temperatures (500 ℃ to 700 ℃) and times (one up to three hours). The motivation is the evaluation of the changes that may occur in carbonaceous asteroids and meteorites, respectively, subjected to the action of the solar radiation and heated during the fall in the atmosphere. We carried out scanning electron microscopy, electron dispersive spectroscopy, X-ray diffraction, optical reflectance and photoluminescence measurements

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