Aerogel Cherenkov Counter

Buzykaev A. et al (1996) Project of aerogel cherenkov counters for KEDR, J. Nucl. Instr. and Meth. Phys. Res. A 379 453 56... [Pg.100]

In this section, examples of specifications of P-EW s hydrophobic sihca aerogel products are introduced and motivation and performance of a sihca aerogel Cherenkov counter are also introduced. The astronomical data collected in B-factory experiment in which hydrophobic silica aerogel was instaUed as a Cherenkov counter in BELLE lead to Makoto Kobayashi and Toshihide Maskawa winning the Nobel prize in 2008. [Pg.651]

Figure 28.7. Schematic view of a typical threshold-type silica aerogel Cherenkov counter.

Figure 28.8. Pulse height spectra for 3.5 GeV/c pions (above threshold) and protons (below threshold) obtained by a single module of aerogel Cherenkov counter, in which n = 1.015 TMSA blocks were stacked.

A typical single threshold-type aerogel Cherenkov counter (ACC) module looks as shown in Figure 28.12. TMSA tiles are stacked in a thin aluminum box of approximate dimensions 120 x 120 x 120 mm. In order to detect the Cherenkov light effectively, two fine mesh-type PMTs are attached directly to the aerogels at both sides of the box. The inner surface of the box (except for the phototube windows) is lined with a diffuse reflector... [Pg.657]

Carlson P (1986) Aerogel Cherenkov counters construction principles and applications. Nucl lustrum Methods Phys Res Sect A248 110-117. [Pg.662]

Suda R, Watanabe M, Enomoto R, lijima T, Adachi I, Hattori H, Kuniya T, Ooba T, Sumiyoshi T, Yoshida (1998) Monte-Carlo simulation for aerogel Cherenkov counter. Nucl lustrum Methods Phys Res Sect A406 213-226. [Pg.662]

Sumiyoshi T, Adachi I, Enomoto R, lijima T, Suda R, Le[Pg.663]

Absorption In chemistry, the process by which one substance, such as a solid or liquid, takes up another substance, such as a liquid or gas, through minute pores or spaces between its molecules. In physics, the process in which the incident radiated energy is retained without reflection or transmission on passing through a medium ACC Aerogel Cherenkov Counter Acidity Acid strength... [Pg.893]

Buzykaev A.R. et al. Aerogel Cherenkov counters with wavelength shifters and micro-channel plate photo-tubes. J. Non-Cryst. Solids 1998 225 381-384... [Pg.1289]

Poelz G, RiethmueUer R (1982) Preparatitm of silica aerogel for Cherenkov counters. Nuc Instr Meth 195 491-503... [Pg.15]

Yokogawa H, Yokoyama M (1995) Hydrophobic silica aerogels. J Non-Cryst Solids 186 23-29 Kharzheev YN (2008) Use of silica aerogels in Cherenkov counters. Physics of Particles and Nuclei,... [Pg.44]

The durabihty of silica aerogel for the moismre is very important when this material is used in the atmosphere. When a silica aerogel is used as a medium of a Cherenkov counter, the durability for the moisture, hydrophobicity, is essential because some large-scale... [Pg.651]

Figure 28.7 shows a typical model of a threshold-type Cherenkov counter. Silica aerogel is filled in a box to which photomultiplier tubes (PMTs) are attached. The refractive index of aerogel is set so that the Cherenkov light is emitted for pions but not for kaons [8,9]. In this way, it is known that kaon/pion/proton separation in the momentum region of 1.0-3.5 GeV/c is possible using aerogel with low refractive index such as 1.01-1.03. [Pg.655]

Figure 28.9. Schematic view of a ring image Cherenkov counter using silica aerogel blocks.

MacKenzie J D (1988) Applications of the sol-gel process. J Non-Cryst Solids 100 162—168 Adachi I, Sumiyoshi T, Hayashi K, lida N, Enomoto R, T sukada K, Suda R, Matsumoto S, Natori K, Y okoyama M, Yokogawa H (1995) Study of a threshold Cherenkov counter based on silica aerogels with low refractive index. Nucl Instr Meth Phys Res A, 335 390-398... [Pg.745]

Figure 4-11. Silica aerogel application as a Cherenkov counter installed in the BELLE detector as part of the B-Factory project.

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