Geometric factor and directional response of single and multi-element particle telescopes

Sullivan, J. D.

doi:10.1016/0029-554x(71)90033-4

Cited by 196 publications

(129 citation statements)

References 7 publications

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“…As will be seen in detail, this lower cut leaves out most protons and He ions. The double-directional Geometrical Factor (GF) is 230 cm 2 sr (calculated from our Monte Carlo -PHITS (Particle and Heavy Ion Transport code System) ALTEA model, and consistent with Sullivan 1971). Further details of the instrument can be found in Zaconte et al (2008).…”

Section: Alteamentioning

confidence: 84%

Exploiting different active silicon detectors in the International Space Station: ALTEA and DOSTEL galactic cosmic radiation (GCR) measurements

Narici¹,

Berger²,

Burmeister³

et al. 2017

J. Space Weather Space Clim.

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The solar system exploration by humans requires to successfully deal with the radiation exposition issue. The scientific aspect of this issue is twofold: knowing the radiation environment the astronauts are going to face and linking radiation exposure to health risks. Here we focus on the first issue. It is generally agreed that the final tool to describe the radiation environment in a space habitat will be a model featuring the needed amount of details to perform a meaningful risk assessment. The model should also take into account the shield changes due to the movement of materials inside the habitat, which in turn produce changes in the radiation environment. This model will have to undergo a final validation with a radiation field of similar complexity. The International Space Station (ISS) is a space habitat that features a radiation environment inside which is similar to what will be found in habitats in deep space, if we use measurements acquired only during high latitude passages (where the effects of the Earth magnetic field are reduced). Active detectors, providing time information, that can easily select data from different orbital sections, are the ones best fulfilling the requirements for these kinds of measurements. The exploitation of the radiation measurements performed in the ISS by all the available instruments is therefore mandatory to provide the largest possible database to the scientific community, to be merged with detailed Computer Aided Design (CAD) models, in the quest for a full model validation. While some efforts in comparing results from multiple active detectors have been attempted, a thorough study of a procedure to merge data in a single data matrix in order to provide the best validation set for radiation environment models has never been attempted. The aim of this paper is to provide such a procedure, to apply it to two of the most performing active detector systems in the ISS: the Anomalous Long Term Effects in Astronauts (ALTEA) instrument and the DOSimetry TELescope (DOSTEL) detectors, applied in the frame of the DOSIS and DOSIS 3D project onboard the ISS and to present combined results exploiting the features of each of the two apparatuses.

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Section: Alteamentioning

confidence: 84%

Exploiting different active silicon detectors in the International Space Station: ALTEA and DOSTEL galactic cosmic radiation (GCR) measurements

Narici¹,

Berger²,

Burmeister³

et al. 2017

J. Space Weather Space Clim.

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“…Over the years the detection efficiency in some strips decreased, therefore to measure the LET we have applied detector geometry cut, selecting a core region with the highest efficiency. Analytical calculations using formulae from [23] in combination with Monte Carlo simulations using Geant4 [24,25] have been performed to reevaluate the geometrical factor for the selected detector geometry. The efficiency has been evaluated for each strip (i) in the fifth layer using coincidence hits in the corresponding strip i in first and seventh layers.…”

Section: Discussionmentioning

confidence: 99%

Measurements of heavy-ion anisotropy and dose rates in the Russian section of the International Space Station with the Sileye-3/Alteino detector

Larsson

Benghin

Berger

et al. 2014

J. Phys. G: Nucl. Part. Phys.

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In this work we present data on linear energy transfer (LET), dose and dose equivalent rates from different locations of the Russian part of the International Space Station (ISS) measured by the Sileye-3/Alteino detector. Data were taken as part of the ESA ALTCRISS project from late 2005 through 2007. The LET rate data shows a heavy-ion (LET >50 keV/μm) anisotropy. From the heavy-ion LET rate in the Zvezda service module we find ISS y( Starboard) and zˆ(Nadir) to be about 10-15 times higher than in x (Forward). The situation is similar for dose and dose equivalent rates, ranging from 25-40 μGy

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“…The geometrical acceptance deÐned for this analysis was calculated by simulation technique (Sullivan 1971) to be 0.0851^0.0003 m2 sr for energetic particles which have straight track inside the tracking volume. It was almost constant over the whole energy range.…”

Section: Normalization and Correctionsmentioning

confidence: 99%

Precise Measurement of Cosmic‐Ray Proton and Helium Spectra with the BESS Spectrometer

Sanuki

Motoki

Matsumoto

et al. 2000

ApJ

320

226

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We report cosmic-ray proton and helium spectra in energy ranges of 1È120 GeV nucleon~1 and 1È54 GeV nucleon~1, respectively, measured by a Ñight of the Balloon-borne Experiment with Superconducting Spectrometer (BESS) in 1998. The magnetic rigidity of the cosmic ray was reliably determined by highly precise measurement of the circular track in a uniform solenoidal magnetic Ðeld of 1 T. Those spectra were determined within overall uncertainties of^5% for protons and^10% for helium nuclei including statistical and systematic errors.

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Geometric factor and directional response of single and multi-element particle telescopes

Cited by 196 publications

References 7 publications

Exploiting different active silicon detectors in the International Space Station: ALTEA and DOSTEL galactic cosmic radiation (GCR) measurements

Exploiting different active silicon detectors in the International Space Station: ALTEA and DOSTEL galactic cosmic radiation (GCR) measurements

Measurements of heavy-ion anisotropy and dose rates in the Russian section of the International Space Station with the Sileye-3/Alteino detector

Precise Measurement of Cosmic‐Ray Proton and Helium Spectra with the BESS Spectrometer

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