Characteristic curves of photographic material used in emulsion chambers

I. Ohta*, K. Mizutani, K. Kasahara, T. Kobayashi, E. Mikumo, I. Mito, A. Ohsawa, K. Sato, Shoji Torii, M. Tsujikawa, S. Uchida, T. Yuda, Y. Takahashi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


In order to provide a reliable basis for the photometric method in emulsion chamber experiments, investigations were made on the characteristic curves of X-ray film such as SAKURA type-N and type-RR used in emulsion chambers. Characteristics curves were obtained over a wide density region by irradiating with an electron beam from an electron synchrotron. Comparison of the observed data to theoretical predictions of the one hit model shows a significant difference at high density. A modification of the one hit model is proposed taking into account the size-frequency of sensitive grains in the emulsion and the development effect on the optical density. The curves based on the size-frequency of grains are in agreement with experiment.

Original languageEnglish
Pages (from-to)35-43
Number of pages9
JournalNuclear Instruments and Methods
Issue number1
Publication statusPublished - 1979 Apr 15
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)


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