-
Article
ORIGIN: metal creation and evolution from the cosmic dawn
ORIGIN is a proposal for the M3 mission call of ESA aimed at the study of metal creation from the epoch of cosmic dawn. Using high-spectral resolution in the soft X-ray band, ORIGIN will be able to identify th...
-
Article
Open AccessThe SPICA-SAFARI TES Bolometer Readout: Developments Towards a Flight System
SAFARI is an imaging Fourier Transform Spectrometer for 35–200 μm under development for flight on the Japanese IR-satellite SPICA (2018). The 3.25 m diameter actively cooled telescope (<6K) will provide a sky ...
-
Article
Open AccessLow-Noise Readout of TES Detectors with Baseband Feedback Frequency Domain Multiplexing
SRON is develo** an electronic read-out system for an array of transition edge sensors (TES) based on the techniques of frequency domain multiplexing (FDM) and base-band feedback (BBFB). The astronomical app...
-
Article
Open AccessAC Bias Characterization of Low Noise Bolometers for SAFARI Using an Open-Loop Frequency Domain SQUID-based Multiplexer Operating Between 1 and 5 MHz
SRON is develo** the Frequency Domain Multiplexing (FDM) read-out and the ultra low NEP TES bolometers array for the infra-red spectrometer SAFARI on board of the Japanese space mission SPICA. The FDM protot...
-
Article
Effect of Magnetic Fields on TiAu TES Bolometers for the SAFARI Instrument on the SPICA FIR Telescope
At the Netherlands Institute for Space Research (SRON) we are develo** Transition Edge Sensors (TES) bolometers for the SAFARI Imaging Spectrometer on the SPICA telescope. With the current design of the SPIC...
-
Article
Open AccessStudy of the Dependency on Magnetic Field and Bias Voltage of an AC-Biased TES Microcalorimeter
At SRON we are studying the performance of a Goddard Space Flight Center single pixel TES microcalorimeter operated in an AC bias configuration. For x-ray photons at 6 keV the pixel shows an x-ray energy resol...
-
Article
EURECA: European-Japanese Microcalorimeter Array
The EURECA project aims to demonstrate technological readiness of a micro-calorimeter array for application in future X-ray astronomy missions, like Constellation-X, EDGE, and XEUS. The prototype instrument co...
-
Article
The soft X-ray spectrum of NGC 4151
EXOSAT observations of the Seyfert galaxy NGC 4151 over the period July 1983 to April 1984 have revealed a decreasing flux in the 2 –10 keV band. In accord with previous measurements a power law spectrum atten...
-
Chapter and Conference Paper
The Soft X-Ray Spectrum of NGC 4151
EXOSAT observations of the Seyfert galaxy NGC 4151 over the period July 1983 to April 1984 have revealed a decreasing flux in the 2 – 10 keV band. In accord with previous measurements a power law spectrum atte...
-
Article
The use of diamond turned & replicated wolter 1 telescopes for high sensitivity X-ray astronomy
Following the success of Einstein, it is clear that telescopes of very large area (∼10 cm) with angular resolution (⪝20″) are needed for deep X-ray surveys and other observations. After a discussion of these o...
-
Chapter and Conference Paper
The Use of Diamond Turned & Replicated Wolter 1 Telescopes for High Sensitivity X-Ray Astronomy
Following the siicces of Einstein, it is clear that telescopes of very large area ( ~ 104 cm2) with angular resolution (⪝20″) are needed for deep X-ray surveys and other observations. After a discussion of these ...
