Charge Identification of Highly Ionizing Particles in Desensitized Nuclear Emulsion Using High Speed Read-Out System

Journal Article · Wed May 10 00:00:00 EDT 2006 · Nuclear Instruments and Methods in Physics Research, Section A

DOI:https://doi.org/10.1016/j.nima.2005.11.047· OSTI ID:882201

Toshito, T; Kodama, K; Yusa, K; Ozaki, M; Amako, K; Kameoka, S; Murakami, K; Sasaki, T; Aoki, S; Ban, T; Fukuda, T; Naganawa, N; Nakamura, T; Natsume, M; Niwa, K; Takahashi, S; Kanazawa, M; Kanematsu, N; Komori, M; Sato, S ; Asai, M

We performed an experimental study of charge identification of heavy ions from helium to carbon having energy of about 290 MeV/u using an emulsion chamber. Emulsion was desensitized by means of forced fading (refreshing) to expand a dynamic range of response to highly charged particles. For the track reconstruction and charge identification, the fully automated high speed emulsion read-out system, which was originally developed for identifying minimum ionizing particles, was used without any modification. Clear track by track charge identification up to Z=6 was demonstrated. The refreshing technique has proved to be a powerful technique to expand response of emulsion film to highly ionizing particles.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 882201
• Report Number(s): SLAC-PUB-11858; NIMAER; TRN: US200614%%87
• Journal Information: Nuclear Instruments and Methods in Physics Research, Section A, Vol. 556; ISSN 0168-9002
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
CARBON
CHARGED PARTICLES
HEAVY IONS
HELIUM
NUCLEAR EMULSIONS
VELOCITY
Instrumentation
INST