Scintillating fiber camera for neutron dosimetry in spacecraft

Kazuhiro Terasawa, T. Doke, N. Hasebe, J. Kikuchi, K. Kudo, T. Murakami, N. Takeda, T. Tamura, S. Torii, M. Yamashita, E. Yoshihira

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A scintillating fiber camera for three-dimensional imaging was newly developed for radiation dosimetry in spacecraft. The camera consists of a scintillating fiber stack, an image intensifier unit and photomultipliers for triggering events. The scintillating fiber stack has 100 scintillating fiber layers. The layers are alternatively stacked up to be perpendicular to each other. The stack is coupled to a two-stage image intensifier and then coupled to a CCD camera for the track readout. Each fiber layer consists of 100 scintillating fibers and the fiber stack composed of 100 layers leads us to a sensitive volume of 50×50×50 mm3. Each fiber has a cross-section of 0.5×0.5 mm2. It is found that the camera has the capability to clearly identify charged particles, neutrons and γ-rays by observing individual three-dimensional images of those tracks. The threshold energy for identification of neutrons and γ-rays is 5-10 MeV for recoil proton energy when the coincidence signals from 2 photomultipliers are used as triggers and is expected to be 2-3 MeV when the triggers from either photomultiplier are used. The whole energy region for neutron dosimetry will be covered by the combination with the Bonner spheres for the energy region lower than approximately 10 MeV.

Original languageEnglish
Pages (from-to)499-508
Number of pages10
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume457
Issue number3
DOIs
Publication statusPublished - 2001 Jan 21
Externally publishedYes

Fingerprint

scintillating fibers
Dosimetry
dosimeters
Spacecraft
Neutrons
spacecraft
Cameras
cameras
neutrons
Fibers
image intensifiers
Photomultipliers
fibers
rays
actuators
recoil protons
proton energy
CCD cameras
Image intensifiers (electron tube)
readout

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Scintillating fiber camera for neutron dosimetry in spacecraft. / Terasawa, Kazuhiro; Doke, T.; Hasebe, N.; Kikuchi, J.; Kudo, K.; Murakami, T.; Takeda, N.; Tamura, T.; Torii, S.; Yamashita, M.; Yoshihira, E.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 457, No. 3, 21.01.2001, p. 499-508.

Research output: Contribution to journalArticle

Terasawa, Kazuhiro ; Doke, T. ; Hasebe, N. ; Kikuchi, J. ; Kudo, K. ; Murakami, T. ; Takeda, N. ; Tamura, T. ; Torii, S. ; Yamashita, M. ; Yoshihira, E. / Scintillating fiber camera for neutron dosimetry in spacecraft. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2001 ; Vol. 457, No. 3. pp. 499-508.
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