Cellulose nitrate 의 ${alpha}$입자비적특성(粒子飛跡特性), 특(特)히 화학부식조건(化學腐蝕條件)에 따른 ${alpha}$입자(粒子)의 비적직경(飛跡直徑)을 중심(中心)으로 연구(硏究)하였다. Cellulose nitrate의 KOH 용액부식(溶液腐蝕)때에는 동일(同一)한 부식조건하에(腐蝕條件下)에서 NaOH 경우보다 ${alpha}$비적직경(飛跡直徑)이 약(約) 3배(培) 크게 나타났다. 그밖에 부식시간(腐蝕時間) 및 ${alpha}$입자(粒子)의 에너지에 따른 비적직경(飛跡直徑)의 데이타를 얻었고, ${alpha}$입자(粒子)의 조사조건(照射條件)이 같을 때 흘루언스율(率)(fluence rate)이 부식시간(腐蝕時間)에 무관(無關)함을 알았다.
A study on the characteristics of ${alpha}$-particle track on cellulose nitrate film was carried out with a particular emphasis on the dependence of track diameter upon chemical etching condition. The track diameters etched in KOH solution appeared to be, on average, three times larger than those etched in NaOH under the same etching condition. The relationship between the track diameters and both etching time and the energy of incident ${alpha}$-particles was also investigated. It is shown that the particle fluence rate is fairly independent of etching time as far as the condition of irradiation remains unchanged.
