알파선 검출소재 ZnS(Ag) 섬광층 제조 방법 연구 = Coating Mathod to Alpha-ray Detection Material ZnS(Ag) Scintillator Activated Layer

다국어 초록 (Multilingual Abstract)

For the development of alpha-layer contamination of Detction Scintillator by using Scintillator which is measurable of polymer material and radiation, the membrane which has a double layer structure made of base and activated layer was prepared in different conditions.
Methylenechloride(MC) was used as a support layer solvent and preparaton of activated layer solvent was dimethylformamide(DMF). However, polysulfone and cyano resin were used as a bonding agent. With making of a dual structure of polymer film, the ability of alpha-ray detction material activated layer to coating method was estimated. Activated layer coating method was two methods which are screen printing and casting method and the structure was confirmed by using SEM. Alpah-ray detection material coating is appropriate for Screen printing method. However, screen printing method was better than the other for Alpah-ray detection material coating. Moreover, when the dual structured polymer film was prepared with controlling of bonding agent and concentration, PSf was most suitable for bonding agent; however, the efficiency of an alpha ray detection was the best one when the concentration was 10%. With screen printing method, it showed a good efficiency of detection, 85%, at 100 mesh when it was measured for the change in different sizes of the frame. It is also measured optical and mechanical strengths for the characteristic evaluation of polymer film. In optical characteristic, permeability and absorbance were measured; however, permeability of light was more than 85% because polymer flim is transparent. Moreover, optical density was measured at 440 nm of wavelength for the absorption of light which must have no light absorption of polymer film at 440 nm of wavelength from the emitting light of scintillator ZnS(Ag). Mechanical strength was measured and applied with different bonding agent on the polymer film. When PSf like support layer was applied, it has more strong mechanical strength than Cyano resin was applied. For measuring viscosity which shows how Scintillator and bonding solution were mixed well, as the viscosity of the solution is higher, Scintillator was not mixed well.
It shows that screen printing method, at 10% of bonding agent on polymer film and surface density about 10 mg/cm2 for alpha-ray detection capacity has the most detection efficiency.

목차 (Table of Contents)

• Ⅰ. 서론 1
• Ⅱ. 이론적 배경 4
• 2.1. 섬광체 4
• 2.2. 스크린 인쇄 8
• Ⅲ. 실험 방법 15
• 3.1. 실험 재료 15
• 3.2. 지지체 필름 제조 15
• 3.3. 섬광층 도포 19
• 3.4. 특성 평가 22
• Ⅳ. 결과 및 고찰 26
• 4.1. 지지체 필름 제조 26
• 4.2. 섬광층 도포 26
• Ⅴ. 결론 48
• Ⅵ. 참고문헌 50
• ABSTRACT 51