Authors: Simeonov, L.I.
Reference: Proc. of the Nat.Conf. with Intern.Part:ELECTRONICA 2000,
Botevgrad, 111-117, 2000.
Abstract:
The pre-flight performance evaluation tests of particle
detectors require the use of different experimental approaches and the
choice for implementation is decided by expected extent of solution of
the particular physical problem. The test of detectors, which are
prepared for space research must be performed best of all in
near-to-real conditions. The first measurements of the characteristic
parameters of the solid-state detector compartment of STOF (Suprathermal
Time-Of-Flight) sensor of the spectrometric system CELIAS on SOHO were
performed at the particle accelerator complex of the Max-Planck-Institut
für Aeronomie in Lindau/Harz. The test were accomplished with two
detector diodes with total of 32 pixels, each connected to an individual
input of a readout amplifier system. The core of this readout
electronics, which is a special adaptation for the purposes of STOF
sensor is a monolithic high-integration chip, containing 32
charge-sensitive amplifier channels with analog mutiplexing, called
CAMEX and steered by a digital chip, called TIMEX. The measurements in
the accelerator were accomplished with ion beams of the elements H, He,
Ne, O and Ar at energies from 100 to 300 KeV in discrete steps of 50
KeV.