Synthesis of science and technology
APDCAM measures fast ion losses on ASDEX Upgrade (November, 2019)
First measurement results from an APDCAM camera installed in a new Fast Ion Loss Detector (FILD) diagnostic on the ASDEX Upgrade tokamak have been published in the Journal of Instrumentation. Light signal fluctuations in the 100 kHz range reveal fast particles ejected from the plasma by Magnetohydrodynamic waves.
APDCAM with MPPC matrix installed on the JET tokamak (November, 2018)
A 4×8 pixel APDCAM camera has been operating in the Li-beam diagnostic of the JET tokamak since many years. An optimization study revealed that the recently available MPPC detector matrices would improve the Signal to Noise Ratio in this experiment, especially in the Scrape Off Layer of the plasma and during gas calibration when the light signal is in 10^7 – 10^8 ph/s range. First measurements showed the expected improvement and now the diagnostic can provide routine calibrated measurement data.
64 channel fibre-coupled APDCAM-10G (September, 2017)
A new version of the APDCAM-10G family has been developed under the name APDCAM-10G-FC64. It features 64 individual detectors, which can be a mixture of up to 4 different APD and/or MPPC detector types. Light is coupled to each detector through a fibre cable connected to standard SMA connectors. This device enables fast spectroscopy or other applications where strongly varying light level is expected on different channels, thus a choice of APD/MPPC enables optimization of the Signal to Noise Ratio. Below three different APDCAM-10G front faces are shown: 4×32, 8×16, FC64.
The first APDCAM-10G-FC64 camera is installed in the Alkali Beam diagnostic of the Wendelstein 7-X stellarator
1 Gbit ADC is ready to ship (September, 2016)
A 32 channel, 14 bit, 2 MHz ADC unit is available now with 1 Gbit PC communication. For details please contact us. A 32-128 channel, 14 bit 4-6 MHz (10 Gbit communication) ADC box will also be ready in a few month time.
APDCAM with MPPC detectors (July, 2016)
APDCAM cameras are now also available with the new Hamamatsu Multi Pixel Photon Counter (MPPC) detectors. For a comparison of standard APD detectors with MPPC please read our white paper on this subject.