Gigapixel camera for dark energy studies passes acceptance test

Share this on social media:

A 1.2 gigapixel camera subsystem built for a ground-based telescope to study dark energy has successfully completed a factory acceptance test.

The e2v designed CryoCam will be integrated into a 2.5m-wide field ground-based telescope in Observatorio Astrofísico de Javalambre (OAJ), Aragon, Spain. It will carry out a five-year survey of the northern sky to build a high fidelity 3D map of the Universe and study dark energy.

The camera is being developed as part of the Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS) project. The completed factory acceptance test was witnessed by representatives of the Brazilian-Spanish consortium, Centro de Estudios de Física del Cosmos de Aragón and Observatório Nacional, and enables the camera’s delivery to the J-PAS consortium.

The camera has been designed, assembled, integrated and tested by e2v. CryoCam has an exceptionally flat focal plane with thermal and mechanical stability – 27μm peak-to-valley measured at -110°C and room temperature. It is based on fourteen 9k x 9k pixel format CCD scientific image sensors, backthinned, with a read-out time less than 20 seconds, and noise less than 5 e- at 400kHz.

Professor Renato Dupke, principal investigator of the Brazilian counterpart of J-PAS at the Observatório Nacional, said: ‘We are very happy with the development of e2v’s 1.2 gigapixel cryogenic CCD camera for the J-PAS project. The subsystem is already achieving in-factory performances significantly beyond our original expectations. Tests are already suggesting an equivalent performance when the subsystem is fully integrated at the telescope. This will have a giant impact on a wide variety of fields in astronomy, in particular on the nature of dark energy.’

Further information:

Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS) project

E2v

Recent News

16 December 2020

Recycleye’s vision system is capable of detecting and classifying items in waste streams, broken down by material, object and brand

10 December 2020

The sensor is based on a thin-film photodetector monolithically integrated on a custom Si-CMOS readout circuit

03 September 2020

Terahertz imaging company, Tihive, has been awarded €8.6m from the European Innovation Council's Accelerator programme to scale up its industrial inspection technology

19 May 2020

The National Institute of Standards and Technology and ASTM Committee E57 have released proceedings on a workshop to define the performance of 3D imaging systems for robots in manufacturing