[en] MACSE, a pilot accelerator has been built at Saclay in order to fully develop the technology of superconducting electron linacs. It consists of five niobium cavities powered by five klystrons. The 1.5 GHz, 5-cell cavities are equipped with coaxial couplers. The first cavity has a reduced phase velocity to capture the 100 kV electrons coming from the injector. It is followed by a four cavities cryomodule. The present status and the first beam test are reported, along with some results of superconductivity R and D

[en] MACSE, a pilot accelerator has been built at Saclay in order to fully develop the technology of superconducting electron linacs. It consists of five niobium cavities powered by five klystrons. The 1.5 GHz, 5-cell cavities are equipped with coaxial couplers. The first cavity has a reduced phase velocity to capture the 100 kV electrons coming from the injector. It is followed by a four cavities cryomodule. The present status and the first beam test are reported, along with some results of superconductivity R and D

[en] For the first time in the history of high energy astronomy, a large CdTe gamma-ray camera is operating in space. ISGRI is the low-energy camera of the IBIS telescope on board the INTEGRAL satellite. This paper details its design and its in-flight behavior and performances. Having a sensitive area of 2621 cm² with a spatial resolution of 4.6 mm, a low threshold around 12 keV and an energy resolution of ∼ 8% at 60 keV, ISGRI shows absolutely no signs of degradation after 9 months in orbit. All aspects of its in-flight behavior and scientific performance are fully nominal, and in particular the observed background level confirms the expected sensitivity of 1 milli-Crab for a 10⁶ s observation. (authors)