Related Experiment Video
Updated: May 17, 2026

Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments
Published on: January 28, 2021
New detection system and signal processing for the tokamak ISTTOK heavy ion beam diagnostic
R B Henriques1, I S Nedzelskiy, A Malaquias
1Associação Euratom/IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, Portugal. rhenriques@ipfn.ist.utl.pt
Abstract:
The tokamak ISTTOK havy ion beam diagnostic (HIBD) operates with a multiple cell array detector (MCAD) that allows for the plasma density and the plasma density fluctuations measurements simultaneously at different sampling volumes across the plasma. To improve the capability of the plasma density fluctuations investigations, a new detection system and new signal conditioning amplifier have been designed and tested. The improvements in MCAD design are presented which allow for nearly complete suppression of the spurious plasma background signal by applying a biasing potential onto special electrodes incorporated into MCAD. The new low cost and small size transimpedance amplifiers are described with the parameters of 400 kHz, 10(7) V/A, 0.4 nA of RMS noise, adequate for the plasma density fluctuations measurements.
Related Concept Videos
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
Tandem Mass Spectrometry
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
Atomic Emission Spectroscopy: Instrumentation
Atomic Absorption Spectroscopy: Instrumentation
The atomizer used in AAS can be either a flame atomizer or an...
Mass Analyzers: Common Types

