Usability of a New Multiple High-speed Pulse Time Data Registration, Processing and Real-time Display System for Pulse Time Interval Analysis

Yawata, Takashi; Sakaue, Hisanobu; Itou, S.; Hashimoto, Takeji

doi:10.3327/taesj2002.5.221

Cited by 2 publications

(1 citation statement)

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“…6). For the sake of such rapid pulse procedures, a fast pulse counter and on-line display system has also been employed (Yawata et al, 2006). In this system, LED trigger pulses at the ending of LED light off and luminescence pulses are fed to an ordinal 32bit PCI board (Z-cosmos, ZH-HTS2).…”

Section: The Led Holdermentioning

confidence: 99%

Construction of a Portable Mini Luminescence-Measurement System Equipped with a Miniature X-Ray Generator

2008

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For the purpose of both luminescence dosimetry and dating, a new portable mini automated luminescence-measuring system has been developed. The main parts of the new system consist of the stimulation unit, an irradiation unit and the photon detector. The size of the main measuring box is approximately 300×300×300 mm. In particular, to keep the electric power as low as possible, a miniature X-ray (Oxford, Eclipse II reflection target) generator and a metal-packaged photomultiplier tube (PMT) (Hamamatsu photonics, H7421-40) were adopted here. 16 blue LEDs were employed for the stimulation of quartz OSL. The same LED holder can be used for pulsed-OSL (P-OSL) measurements. The weight of the main part of this system was about 15 kg. In order to check the usefulness of the new system, red thermoluminescence (RTL) glow curves were measured to estimate the signal-to-noise ratio (S/N ratio) using a volcanic quartz sample. These results show that the new system improves the S/N ratio in comparison with an existing handmade system. The estimated RTL equivalent (or paleo) dose using quartz extracted from an archaeological roof tile of Shin-Yakushiji temple by means of the SAR protocol was in good agreement with previous measurements. This proves that the new system is suitable for practical use for RTL-measurements either for dosimetry or for dating with a high S/N ratio.

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Section: The Led Holdermentioning

confidence: 99%