|
KMID : 1151820110050060357
|
|
Journal of the Korean Society of Radiology
2011 Volume.5 No. 6 p.357 ~ p.361
|
|
|
Development of Liquid Crystal Optic Modulation Based X-ray Dosimeter by Using CdS Sensor
|
|
Noh Si-Cheol
Kang Sang-Sik
Joeng Bong-Jae
Choi Il-Hong
Kim Hyun-Hee
Cho Chang-Hoon
Park Jun-Hong
Park Ji-Koon
|
|
|
Abstract
|
|
|
|
In this study, the liquid-crystal optical modulation X-ray detection system using a CdS which is a family of II-IV compound semiconductor was proposed. The system consist of the detector, the signal processing part, the liquid-crystal driving parts, microcontroller, and I/O parts, and was designed to be suitable for miniaturization and portable. In addition, the system can measure a wide range X-ray by using the detecting range selection. In order to evaluate the performance of the proposed system, the CdS sensor's output characteristics were confirmed in accordance with changes of dose, and excellent correlation was determined. And also, the optical penetration ratio was discussed in accordance with changes of the applied voltage by measuring the change of the liquid-crystal in accordance with changes of the applied voltage. Through these results, the characteristics of the liquid-crystal optical modulation system such as the excellent reproducibility and the noise immunity were confirmed. And we considered that the CdS cell-based liquid-crystal optical modulated portable X-ray detection system could be applied to compact, low-cost, portable system.
|
|
|
KEYWORD
|
|
|
optic modulation, liquid crystal, CdS, potable dosimiter
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|