CNT-FIELD EMITTER BASED COMPACT X-RAY TUBE FOR SPACE MISSION

PRISMA (Probing Rotation and Interior of Stars: Microvariability and Activity) is a new space mission of the European Space Agency. PRISMA is currently in a Phase A study with 3 other competitors. PRISMA is the only ESA-only mission amongst those four and only one mission will be selected in Spring 1993 to become a real space mission.The goal of the Phase A study is to determine whether the payload of PRISMA can be accommodated on a second unit of the X-ray Multi-Mirror (XMM) bus; and whether the budget of the PRISMA mission can be kept below 265 MAU (’88 Economic conditions). The XMM mission is an approved cornerstone and is in a Phase A together with PRISMA.

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A digital miniature x-ray tube with a high-density triode carbon nanotube field emitter

Applied Physics Letters ◽

10.1063/1.4776222 ◽

2013 ◽

Vol 102 (2) ◽

pp. 023504 ◽

Cited By ~ 58

Author(s):

Jin-Woo Jeong ◽

Jun-Tae Kang ◽

Sungyoul Choi ◽

Jae-Woo Kim ◽

Seungjoon Ahn ◽

...

Keyword(s):

Carbon Nanotube ◽

High Density ◽

Field Emitter ◽

X Ray

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THE AGILE MISSION AND GAMMA-RAY ASTROPHYSICS

International Journal of Modern Physics A ◽

10.1142/s0217751x02011291 ◽

2002 ◽

Vol 17 (12n13) ◽

pp. 1799-1808 ◽

Cited By ~ 6

Author(s):

MARCO TAVANI

Keyword(s):

Energy Range ◽

Gamma Ray ◽

Angular Resolution ◽

Source Monitoring ◽

Space Mission ◽

Quick Response ◽

Scientific Program ◽

X Ray ◽

Imaging Capability ◽

Gamma Ray Imaging

Gamma-ray astrophysics in the energy range between 30 MeV and 30 GeV is in desperate need of arcminute angular resolution and source monitoring capability. The AGILE Mission planned to be operational in 2004-2006 will be the only space mission entirely dedicated to gamma-ray astrophysics above 30 MeV. The main characteristics of AGILE are the simultaneous X-ray and gamma-ray imaging capability (reaching arcminute resolution) and excellent gamma-ray timing (10-100 microseconds). AGILE scientific program will emphasize a quick response to gamma-ray transients and multiwavelength studies of gamma-ray sources.

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Efficient Carbon Nanotube Field Emitter using Electrospun Carbon Nanofibers as a Flexible Electrode

MRS Proceedings ◽

10.1557/proc-1173-u06-03 ◽

2009 ◽

Vol 1173 ◽

Author(s):

Hidetoshi Matsumoto ◽

Kenichi Suzuki ◽

Kazuma Tsuboi ◽

Mie Minagawa ◽

Akihiko Tanioka ◽

...

Keyword(s):

Carbon Nanotube ◽

Carbon Fibers ◽

Current Density ◽

Chemical Vapor ◽

Light Sources ◽

Flexible Electrode ◽

Field Emitter ◽

Field Emitter Arrays ◽

Thin Carbon ◽

Cnt Field Emitter

AbstractThermal-stable, conductive, and flexible carbon fabric (CF), which is composed of thin carbon fibers prepared by electrospinning, was used for the substrate of carbon nanotube (CNT) field emitter arrays. The field emitter arrays were prepared by chemical vapor deposition (CVD). The current density-electric field characteristics revealed that the CNT field emitter arrays on CF produced a higher current density at a lower turn-on voltage compared to ones on a Si substrate. This emitter integrated with a gate electrode based on hierarchy-structured carbon materials, CNTs on CF, can be used for light sources, displays, and other electronic devices.

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X-ray High Dose Rate Investigation of Up-to-Date Space Mission Protection Technologies

2005 8th European Conference on Radiation and Its Effects on Components and Systems ◽

10.1109/radecs.2005.4365646 ◽

2005 ◽

Cited By ~ 6

Author(s):

B. Azais ◽

Ph. Charre ◽

G. Auriel

Keyword(s):

Dose Rate ◽

Space Mission ◽

High Dose Rate ◽

High Dose ◽

X Ray

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AGILE Observations of GW Events

Proceedings of the International Astronomical Union ◽

10.1017/s1743921318003605 ◽

2017 ◽

Vol 13 (S338) ◽

pp. 84-89

Author(s):

Francesco Verrecchia ◽

Marco Tavani ◽

Immacolata Donnarumma

Keyword(s):

Space Mission ◽

Test Case ◽

X Ray ◽

Event Time ◽

Space Agency ◽

Upper Limits ◽

Major Player ◽

Detection Capabilities ◽

Γ Ray ◽

Italian Space Agency

AbstractAGILE is a space mission of the Italian Space Agency dedicated to γ-ray astrophysics, launched in 2007. AGILE performed dedicated real-time searches for possible γ-ray counterparts of gravitational wave (GW) events detected by the LIGO-Virgo scientific Collaboration (LVC) during the O2 observation run. We present a review of AGILE observations of GW events, starting with the first, GW150914, which was a test case for future searches. We focus here on the main characteristics of the observations of the most important GW events detected in 2017, i.e. GW170104 and GW170817. In particular, for the former event we published γ-ray upper limits (ULs) in the 50 MeV – 10 GeV energy band together with a detailed analysis of a candidate precursor event in the Mini-Calorimeter data. As for GW170817, we published a set of constraining γ-ray ULs obtained for integrations preceding and following the event time. These results allow us to establish important constraints on the γ-ray emission from a possible magnetar-like remnant in the first ~1000 s following T0. AGILE is a major player in the search of electromagnetic counterparts of GW events, and its enhanced detection capabilities in hard X-ray/MeV/GeV ranges will play a crucial role in the future O3 observing run.

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