SITE LINK

現像法現像液에 따른 필름特性에 關한 硏究
A DENSOTOMETRIC STUDY OF THE DENTAL FILMS IN COMBINATION WITH VARIABLE PROCESSING SOLUTIONS

치과방사선 1987년 17권 1호 p.197 ~ 207

소속 상세정보

김호철(金鎬哲)/Ho Cheol Kim 박재관(朴在冠)/Jae Kwan Park

KMID : 0378219870170010197

Abstract

국내에서 사용되는 RD-Ⅲ현상액, A현상액, X-dol 90현상액과 DF-58, EP-21, Dentus M2
필을 사용하여 현상온도의 변화에 따른 base+fog흑화도와 필름흑화도를 측정하여 피름상대
감광도, 필름대조도, 피사체대조도를 관찰하여 다음과 같은 결과를 얻었다.
1. base+fog黑化度는 현상온도 증가에 따라 증가되었으며, 현상온도 92。F(36.5。C)이상에
서는 최대허용 base+fog黑化度를 넘었다.
2. base+fog黑化度는 A현상액곽 RD-Ⅲ현상액을 사용한 경우 Dentus M2, EP-21, DF-58
필름순으로 낮았으며, X-do190현상액을 사용한 경우에는 EP-21, Dentus M2, DF-58필름순
으로 낮았다.
3. 필름相對感光度는 A현상액과 RD-Ⅲ현상액을 사용한 경우 EP-21, Dentus M2, DF-58
필름순으로 높았으며, X-dol 90 현상액을 사용한 경우에는 EP-21필름이 가장 높은 필름相
對感光度를 나타내었다.
4. 필름對凞度는 현상온도증가에 따라 높아졌으며, A현상액에서 EP-21, Dentus M2,
DF-58필름 순으로 필름對照度가 높았고, 현상온도80。F(29.5℃)에서는 RD-Ⅲ, X-dol 90현
상액을 사용한 경우 EP-21, DF-58, Dentus M2필름순으로 높았다.
5. 被寫體對照度는 현상온도의 증가에 따라 높아졌으며, EP-21, Dentus M2, DF-58필름순
으로 높았고 80。F에서 현상된 세 종류의 필름에서는 A, X-dol 90, RB-Ⅲ현상액순으로 높았다.
#초록#
This study was undertaken to investigate the relationships between film and
processing solution at different processing temperatures.
Three kinds of periapical film were used for this study. They included EP-21 film,
DF-58, and A film Each film was processed by automatic film processor with RD-Ⅲ,
X-dol 90, and A processing solutions at 68。,74。,80。,86。, and 92。F.
Film density was measured with the densitometer, and base plus fog density, film
relative speed, film contrast, and subject contrast were evaluated.
The following results were obtained;
1. As the processing temperature was increased, base plus density was increased.
Inadequate base plus fog densities were obtained with three films in combination with
three processing solutions at 92。F.
2. Lowest base plus fog densities were obtained with A film, followed in ascending
order by EP-21, and DF-58 film in combination with A or RD-Ⅲ processing solutions.
The sequence of base plus fog densities was in ascending order by EP-21, 4, and
DF-58 film in combination with X-dol 90 processing solution.
3. The sequence of film relative speed valuers was in ascending order of EP-21, A,
and DF-58 film in combination with A and RD-Ⅲ processing solutions, respectively.
4. As the processing temperature was increased, film contrast values was increased.
The sequence of film contrast values was in descending order solution. The sequence of
film
contrast values was in descending order of EP-21, DF-58, and A film in combination
with RD-Ⅲ,X-dol 90 processing solution at 80。F
5. As the processing temperature was increased, subject contrast was increased. The
sequence of subject contrast was in descending order of A, X-dol 90, and RD-Ⅲ
processing solution in combination with three films at 80o F. The sequence of subject
contrast was in descending order of EP-21, A, and DF-58 film in combination with A
processing solution at different processing temperatures.