121 citations · 282 across the 4 of their papers we have counts for
4 papers
Gamma Ray Glow Observations at 20-km Altitude
N. Østgaard, H. J. Christian, J. E. Grove +12
In the spring of 2017 an ER-2 aircraft campaign was undertaken over continental United States to observe energetic radiation from thunderstorms and lightning. The payload consisted…
The Modular X- and Gamma-Ray Sensor (MXGS)of the ASIM Payload on the International Space Station
Nikolai Østgaard, Jan E. Balling, Thomas Bjørnsen +32
The Modular X- and Gamma-ray Sensor (MXGS) is an imaging and spectral X- and Gamma-ray instrument mounted on the starboard side of the Columbus module on the International Space St…
Pilot system development in metre-scale laboratory discharge
Pavlo Kochkin, Nikolai Lehtinen, Alexander +2
The pilot system development in metre-scale negative laboratory discharges is studied with ns-fast photography. The systems appear as bipolar structures in the vicinity of the nega…
Experimental study on hard X-rays emitted from metre-scale negative discharges in air
P. O. Kochkin, A. P. J. van Deursen, Ute Ebert
We investigate the development of meter long negative discharges and focus on their X-ray emissions. We describe appearance, timing and spatial distribution of the X-rays. They app…