The ionization-loss distribution at very small absorber thickness

Chechin, V. A.; Ermilova, V.C.

doi:10.1016/0029-554x(76)90380-3

Cited by 36 publications

(5 citation statements)

References 12 publications

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“…15% too large for the noble gasesll• Recently Chechin & Ermilova (1976) discussed the range of validity of the Landau model. Landau's basic assumption is expected to fail for thicknesses x such that �/I < 100 where � = 2nNe4x/mp2c2.…”

mentioning

confidence: 99%

“…This requires �/I '" 1, incompatible with the basic assumption ofthe I Landau model. An early attempt to improve the description of the distributions included a first-order atomic shell effect (Blunck & Leisegang 1950), but the model is not applicable for �/I < 10 (Chechin & Ermilova 1976) . More recent models have developed along the lines discussed in Section 2.…”

mentioning

confidence: 99%

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Relativistic Charged Particle Identification by Energy Loss

Allison¹,

Cobb²

1980

Annu. Rev. Nucl. Part. Sci.

234

126

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confidence: 99%

mentioning

confidence: 99%

Relativistic Charged Particle Identification by Energy Loss

Allison¹,

Cobb²

1980

Annu. Rev. Nucl. Part. Sci.

234

126

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“…Although a reasonable description of the energy-loss distribution in dense media was achieved rather early (Vavilov 1957, Blunck andLeisegang 1950), the fluctuations at very small detector thickness and density (gases) were not properly predicted. Recently, the detailed treatment of shell effects using Monte Carlo techniques (Cobb et a1 1976, Chechin andErmilova 1976) and analytical methods (Talman 1978) has established good agreement with experiment for thin gas samples.…”

Section: Energy Loss By Excitation and Ionisationmentioning

confidence: 98%

Particle detectors

Fabjan

1980

Rep. Prog. Phys.

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During thc past decade, the methods and techniques of particle detection have seen a spectacular development. Today, the physicist dealing with a specific problem in the field of detectors is confronted with a wide and often tantalising choice of methods, each of them offering possibilities and performances far superior to what was feasible only a few years ago. On the other hand, each method imposes its own highly developed and specialised tcchnology in detector design and construction as well as in the fields of signal processing and data handling-modern detectors require a highly interdisciplinary approach.T o a large extent, this development h ~: i been linked to the evolution of particle physics. If today we approach a unified picture of the basic interactions of matter, and if the impressive number of elementary particles begins to form an ordered structure, this progress in understanding has been made possible by an equally important progress in accelerator and detector physics. In fact, most of the recent detector developments have their origin in the ever-increasing demands on detection capability imposed by the modern high-energy particle physics experiments.I n this context it is interesting to note that the basic methods of detection are still the 'classical' ones: very few new concepts have been added to the fundamentals of detector physics. It is the exploitation of the known methods to their limits, the full use of electronics and computer technology, and the integration of many different types of detectors into large systems that characterise the situation.The introduction of the multiwire proportional chamber (UWPC) (Charpak et a2 1968) which opens our period of review is in this sense a typical example. T h e application of large-scale electronics (made possible by modern transistor technology) to the well-known detection technique, by means of proportional amplification in gases, created a new class of detectors that quickly revolutionised the whole field of positionsensitivc detectors and, in turn, had strong repercussions on electronics technology.I n this review we will consider the evolution of particle detectors from the point of view of the particle physicist and try to give an overview of the most remarkable recent dcvelopments in this fast-moTiing field of research.

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“…This approach exploits the properties of the cumulants [23] of distributions, and in particular of the cumulants of the distribution of Poisson distributed variables. The approach can account for an arbitrary threshold 𝑇 𝛿 for the explicit production of secondary electrons ("delta" rays), for arbitrary step-lengths, and for the contribution to the energy loss fluctuations of distant collisions, the latter with a formalism in part inspired by [24], while assuring the exact match of the average restricted stopping power. The effect of the Mott correction on energy loss fluctuations must also be…”

Section: Jinst 17 P12019mentioning

confidence: 99%

Precise measurement of the Bragg curve for 800 MeV/u ²³⁸U ions stopping in polyethylene and its implications for calculation of heavy ion ranges

et al. 2022

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Stopping power predictions in radiation transport codes are based on the Bethe-Bloch formula and different corrections. For very heavy ions at relativistic energies the available experimental data are scarce and therefore verification of stopping power predictions is only possible to a limited extent. In this work, a full experimental Bragg curve for 800 MeV/u 238U ions stopping in polyethylene is presented. The measurements were conducted at the experimental area Cave A at GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany. The 800 MeV/u 238U beam was provided by the SIS18 heavy ion synchrotron. The Bragg curve was measured with a setup consisting of a binary range shifter and two large area parallel plate ionization chambers. Complementary Monte Carlo simulations using the FLUKA code were performed and compared with the experimental Bragg curve. The mean ionization potential of polyethylene was fine-tuned to match the measured primary ion range with FLUKA simulations. The impact of the Bloch and Mott corrections to the stopping power calculation were studied by switching them off intentionally in separate simulations. A detailed description of the implementation of the stopping power formulae and the Mott correction in FLUKA is provided. Supplementary data for this article is available online.

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The ionization-loss distribution at very small absorber thickness

Cited by 36 publications

References 12 publications

Relativistic Charged Particle Identification by Energy Loss

Relativistic Charged Particle Identification by Energy Loss

Particle detectors

Precise measurement of the Bragg curve for 800 MeV/u ²³⁸U ions stopping in polyethylene and its implications for calculation of heavy ion ranges

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The ionization-loss distribution at very small absorber thickness

Cited by 36 publications

References 12 publications

Relativistic Charged Particle Identification by Energy Loss

Relativistic Charged Particle Identification by Energy Loss

Particle detectors

Precise measurement of the Bragg curve for 800 MeV/u 238U ions stopping in polyethylene and its implications for calculation of heavy ion ranges

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Product

Resources

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Precise measurement of the Bragg curve for 800 MeV/u ²³⁸U ions stopping in polyethylene and its implications for calculation of heavy ion ranges