VZLUSAT-1: Nanosatellite with miniature lobster eye X-ray telescope and qualification of the radiation shielding composite for space application

Urban, M.; Nentvich, O.; Stehlikova, Veronika; Báča, Tomáš; Dániel, Vladimír; Hudec, R.

doi:10.1016/j.actaastro.2017.08.004

Cited by 42 publications

(31 citation statements)

References 16 publications

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“…The foil and the tungsten sheet covering diodes should serve as a 0 and 100% reference for the composite‐shielded one. The arrangement is depicted in Figure and the materials are marked from left to right: W for the combination of tungsten sheet and composite; C for the composite; and O for open diode (Urban et al ). As a protection against the background radiation, the detectors and their amplifier cascades are mounted inside a 1‐mm‐thick tungsten housing, which covers everything except the active area of the diodes.…”

Section: Description Of the Functionality Of The Radiation Resistancementioning

confidence: 99%

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Radiation resistance monitor on VZLUSAT‐1: Preliminary results

et al. 2018

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The technological CubeSat VZLUSAT‐1 was launched in June 2017, and carries a number of scientific and commercial experiments aboard. Several of them are focused on in‐orbit investigation of a novel carbon‐fiber composite developed by the 5 M company; examination of residual liquid evaporation, change of eigenfrequencies of the material due to aging, and shielding abilities against cosmic radiation. The quality of shielding is evaluated from a comparative measurement between three channels with different shielding. Each channel contains a calibrated biased PIN (p‐type, intrinsic, n‐type semiconductor regions) diode as the radiation sensor, which is sensitive to radiation in the 6–80 keV energy range. Preliminary results from the in‐orbit measurements are presented in this paper.

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Section: Description Of the Functionality Of The Radiation Resistancementioning

confidence: 99%

“…At the VZLUSAT-1, this composite is tested with respect to several properties. Measurements are made on the outgassing and mechanical stability in time as well, as is described in related articles (Daniel et al 2016;Urban et al 2018).…”

Section: Radiation Reinforced Carbon Compositementioning

confidence: 99%

Radiation resistance monitor on VZLUSAT‐1: Preliminary results

et al. 2018

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“…This satellite is shown in Figure ; more details about its construction and mission are given in Urban et al ().…”

Section: Vzlusat‐1 Nanosatellitementioning

confidence: 99%

“…Abbreviations: CFRP, carbon-fiber-reinforced plastic; LEO, low earth orbit. This satellite is shown in Figure 1; more details about its construction and mission are given in Urban et al (2017).…”

Section: Vzlusat-1 Nanosatellitementioning

confidence: 99%

Outgassing monitor on VZLUSAT‐1: Preliminary results

et al. 2018

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The first results of an outgassing monitor on board of the first Czech CubeSat launched into Earth's orbit are presented in this paper. VZLUSAT‐1 was launched in June 2017 as a technological satellite and is still operating in the LEO orbit. A newly developed carbon‐fiber‐reinforced plastic, which can be used as a radiation shield, is one of the tested items on board. The amount of outgassing is one of its critical properties for space applications. Water vapor is the largest part of matter outgassed from mounted composites and other components. Thus a novel monitoring device based on several types of humidity sensors was proposed to be used on board of the VZLUSAT‐1 nanosatellite as one of the payloads. This paper presents the responses of these sensors and discusses their applicability in the space environment.

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“…For long-term and low-mass measurements, it was necessary to develop a new type of measurement, especially in the case of space usage. Nanosatellite VZLUSAT-1 with all payloads (Urban et al 2017) Testing the mechanical properties by a nondestructive method is based on measuring the eigenfrequencies of a free-hanging beam. Based on the acquired eigenfrequencies and dimensions of the beam, Young's modulus of elasticity, which is essential for the determination of the examined material's stiffness, can be then computed.…”

Section: Measurementmentioning

confidence: 99%

VZLUSAT‐1: Health monitoring system, preliminary results

et al. 2018

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The health monitoring (HM) system placed on VZLUSAT‐1 nondestructively measures the mechanical and thermal properties of the newly developed carbon fiber material for space usage. The carbon material is exposed to the vacuum, radiation, and temperature changes in space. It can be used as a substitute for the currently used aluminum alloys because it has lower mass density and better mechanical properties compared to aluminum. The HM payload evaluates the quality changes of a material according to the difference in Young's modulus. Young's modulus of elasticity is a characteristic property of every solid material, and on VZLUSAT‐1 it is measured in terms of the eigenfrequencies of a free‐hanging beam. In this paper we present the first data measured in orbit – the eigenfrequencies, attenuation, and six temperatures from a carbon fiber panel. Based on these data, the quality of the mechanical properties and time stability are determined over the VZLUSAT‐1's life span.

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VZLUSAT-1: Nanosatellite with miniature lobster eye X-ray telescope and qualification of the radiation shielding composite for space application

Cited by 42 publications

References 16 publications

Radiation resistance monitor on VZLUSAT‐1: Preliminary results

Radiation resistance monitor on VZLUSAT‐1: Preliminary results

Outgassing monitor on VZLUSAT‐1: Preliminary results

VZLUSAT‐1: Health monitoring system, preliminary results

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