A streak mode soft X-ray imaging system

• Published in: Japanese Journal of Applied Physics 1996-11, Vol.35 (11), p.5862-5865
• Main Authors: YANAGIDAIRA, T, SATO, M, HIRANO, K
• Format: Article
• Language: English
• Subjects: Exact sciences and technology; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Physics; X- and γ-ray instruments and techniques; X- and γ-ray sources, mirrors, gratings and detectors
• ISSN: 0021-4922; 1347-4065
• DOI: 10.1143/JJAP.35.5862

A streak mode soft X-ray imaging system was newly developed. The system is composed of a combination of a six-channel scintillator-photomultiplier array and a pinhole camera. In this system, the pinhole camera was used to obtain the spatial distribution of the impulsive soft X-ray source quantitatively. Analog signals from the photomultiplier array were provided to obtain the time variation of the source intensity. Software was developed to perform a streak mode display consisting of a 25×20 mesh (3.2 ns/div and 1 mm/div). This system has been successfully employed to observe the time evolution of X-ray emission in plasma focus discharges with puffed Ar. The lifetime and the intensity of the soft X-ray emitting spots around 4 Å were found typically to be ∼5 ns and ∼10 16 photons/(mrad 2 ·mm·s), respectively.