Gold antenna increases sensitivity detectors for proto-planetary systems

Researchers at SRON and TU Delft have made bolometer detectors thirty percent more sensitive. Bolometers form the heart of terahertz spectrometers that can distinguish colors up to one-millionth of their wavelength. This is needed to observe astrophysical processes such as the birth of stars and planets from gas and dust clouds. The enhancement should cut the time in half that it takes a space telescope to take a spectrum.

PRIMA selected as candidate for NASA’s Probe mission

Out of the eight projects that competed to become NASA’s Probe mission, only two remain. The Probe far-Infrared Mission for Astrophysics (PRIMA) and the Advanced X-ray Imaging Satellite (AXiS) have been selected for the second round. SRON delivers the detectors for PRIMA, developed together with TU Delft.

Astrophysics in the lab: TES detectors measure X-rays from hot plasma

SRON has joined forces with the Max Planck Institute for Nuclear Physics (MPIK) and the Institut de Recherche en Astrophysique et Planetologie (IRAP) to generate reference data for astronomical observations and scrutinize the laws of hot plasma physics. The electron beam ion trap (EBIT) at MPIK in Heidelberg simulates a hot plasma, while superconducting transition-edge sensors (TES) developed by SRON measure the emitted  X-ray spectra with unprecedented energy resolution.

NWO grant for detection of single photons from exoplanets

SRON researcher Pieter de Visser has received an ENW-M1 grant from NWO to develop detectors that catch individual light particles from planets outside our solar system. Planets mainly emit low-energy light, such as infrared radiation, which is particularly difficult to detect. De Visser is developing his MKID detectors for infrared wavelengths with ESA’s candidate space mission LIFE in mind.

New type of bolometer detector for far-infrared telescopes

To study how stars and planets are born we have to look at star cradles hidden in cool clouds of dust. Far-infrared telescopes are able to pierce through those clouds. Conventionally, niobium nitride bolometers are used as the detectors, despite their low operating temperature of 4 Kelvin (-269° Celsius). Now Yuner Gan (SRON/RUG), together with a team of scientists at SRON, TU Delft, Chalmers University and RUG, has developed a new type of bolometer, made of magnesium diboride, with an operating temperature of 20 Kelvin or above. This can significantly reduce the cost, complexity, weight and volume of the space instruments. Publication on 17 February in Journal of Applied Physics.

Far-infrared detector KID reaches highest possible sensitivity

Compared to most other wavelengths, astronomy has a blind spot in the area of far-infrared radiation. A far-infrared space telescope can only utilize its full sensitivity with an actively cooled mirror below 4 Kelvin (-269 ℃). Such a telescope doesn’t exist yet, which is why there has been little worldwide investment in the development of corresponding detectors. In 2004, SRON decided to break this vicious circle and invest in the development of Kinetic Inductance Detectors (KIDs). Now researchers from SRON and TU Delft have achieved the highest possible sensitivity, comparable to feeling the warmth of a candle on the Moon from Earth. Publication on September 6th in Astronomy & Astrophysics.

Far-infrared detector KID reaches highest possible sensitivity

Compared to most other wavelengths, astronomy has a blind spot in the area of far-infrared radiation. A far-infrared space telescope can only utilize its full sensitivity with an actively cooled mirror below 4 Kelvin (-269 ℃). Such a telescope doesn’t exist yet, which is why there has been little worldwide investment in the development of corresponding detectors. In 2004, SRON decided to break this vicious circle and invest in the development of Kinetic Inductance Detectors (KIDs). Now researchers from SRON and TU Delft have achieved the highest possible sensitivity, comparable to feeling the warmth of a candle on the Moon from Earth. Publication on September 6th in Astronomy & Astrophysics.