Utilization of a channel electron multiplier for counting-measurement on a condensed molecular jet (in French)
Conference
·
OSTI ID:4117334
A channel electron multiplier has been used for counting ionized clusters containing up to a few thousands molecules; clusters are accelerated towards a negative (approximately-220V) copper target; a larger negative bias (approximately-3000V) is applied to the multiplier entrance so as to collect positive secondary ions and/or reflected cluster fragments; in the present application this gives better signal to noise ratio than detecting clusters directly or by secondary electron emission on the target. (FR)
- Research Organization:
- Association Euratom-CEA, Centre d'Etudes Nucleaires de Fontenay- aux-Roses, 92 (France). Groupe de Recherches sur la Fusion Controle
- NSA Number:
- NSA-33-012947
- OSTI ID:
- 4117334
- Country of Publication:
- France
- Language:
- French
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Related Subjects
*CLUSTER BEAM INJECTION-- ION DETECTION
640301* --Physics Research--Atomic
Molecular & Chemical Physics--Beams & Their Reactions
ELECTRON MULTIPLIERS
ELECTRON-MOLECULE COLLISIONS
MOLECULAR BEAMS
N46110 --Instrumentation--Radiation Detection Instruments--General Detectors & Monitors
N60100* --Physics (Atomic & Molecular)--Atomic
Electron
Ion & Molecular Beams & Reactions
640301* --Physics Research--Atomic
Molecular & Chemical Physics--Beams & Their Reactions
ELECTRON MULTIPLIERS
ELECTRON-MOLECULE COLLISIONS
MOLECULAR BEAMS
N46110 --Instrumentation--Radiation Detection Instruments--General Detectors & Monitors
N60100* --Physics (Atomic & Molecular)--Atomic
Electron
Ion & Molecular Beams & Reactions