Cosmic Ray Tests of the Prototype TPC for the ILC Experiment (2009)
Ackermann, K., Arai, S., Arogancia, D. C., Bacala, A. M., Ball, M., Behnke, T., ...
A time projection chamber (TPC) is a strong candidate for the central tracker of the international linear collider (ILC) experiment and we have been conducting a series of cosmic ray experiments...
TH003 Development of a mover having one nanometer precision and 4mm moving range (2008)
Y. Morita, S. Yamashita, Y. Higashi, M. Masuzawa, R. Sugahara, H. Yamaoka
In order to have an experience on movers having a nanometer precision, a mover has been fabricated and its performance is tested. In the ILC, range of about 1mm is required to cure the long term...
The WASA Detector Facility at CELSIUS (2008)
Bargholtz, Chr., Bashkanov, M., Berłowski, M., Bondar, A., Bogoslawsky, D., Brodowski, W., ...
The WASA 4pi multidetector system, aimed at investigating light meson production in light ion collisions and eta meson rare decays at the CELSIUS storage ring in Uppsala is presented. A detailed...
Pastorello, A., Mattila, S., Zampieri, L., Della Valle, M., Smartt, S. J., Valenti, S., ...
We present new spectroscopic and photometric data of the type Ibn supernovae 2006jc, 2000er and 2002ao. We discuss the general properties of this recently proposed supernova family, which also...
A giant outburst two years before the core-collapse of a massive star (2007)
Pastorello, A., Smartt, S. J., Mattila, S., Eldridge, J. J., Young, D., Itagaki, K., ...
The death of massive stars produces a variety of supernovae, which are linked to the structure of the exploding stars. The detection of several precursor stars of Type II supernovae have been...
A giant outburst two years before the core-collapse of a massive star (2007)
Pastorello, A., Smartt, S. J., Mattila, S., Eldridge, J. J., Young, D., Itagaki, K., ...
Performance of MPGD-based TPC prototypes for the linear collider experiment (2007)
Kobayashi, M., Araki, T., Arogancia, D.C., Bacala, A.M., Boudjemline, K., Burke, D., ...
We conducted a series of beam tests of prototype TPCs for the International Linear Collider (ILC) experiment, equipped with an MWPC, a MicroMEGAS, or GEMs as a readout device. The prototype operated...
Performance of MPGD-based TPC prototypes for the linear collider experiment (2007)
Kobayashi, M., Araki, T., Arogancia, D.C., Bacala, A.M., Boudjemline, K., Burke, D., ...
We conducted a series of beam tests of prototype TPCs for the International Linear Collider (ILC) experiment, equipped with an MWPC, a MicroMEGAS, or GEMs as a readout device. The prototype operated...
Performance of MPGD-based TPC prototypes for the linear collider experiment (2007)
Kobayashi, M., Araki, T., Arogancia, D.C., Bacala, A.M., Boudjemline, K., Burke, D., ...
We conducted a series of beam tests of prototype TPCs for the International Linear Collider (ILC) experiment, equipped with an MWPC, a MicroMEGAS, or GEMs as a readout device. The prototype operated...
Grishanov, B I, Agapov, I V, Alabau-Pons, M, Angal-Kalinin, Deepa, Appleby, R, Araki, S, ...
For achieving the high luminosity required at the International Linear Collider (ILC), it is critical to focus the beams to nanometer size with the ILC Beam Delivery System (BDS), and to maintain the...
Grishanov, B I, Agapov, I V, Alabau-Pons, M, Angal-Kalinin, Deepa, Appleby, R, Araki, S, ...
For achieving the high luminosity required at the International Linear Collider (ILC), it is critical to focus the beams to nanometer size with the ILC Beam Delivery System (BDS), and to maintain the...
B. Grishanov, DESY Maschinenphysik, P. Logachev, F. Podgorny, V. Telnov, D. Angal-Kalinin, ...
Internal report | Preprint
Nysewander, M. C., Reichart, D. E., Williams, G. G., Kinugasa, K., Lamb, D. Q., ...
We present Follow-Up Network for Gamma-Ray Bursts (FUN GRB) Collaboration observations of the optical afterglow of GRB 021211 made between 143 seconds and 102 days after the burst. Our unique data...
Araki, S., Hayano, H., Higashi, Y., Honda, Y., Kanazawa, K., Kubo, K., ...
To reach design luminosity, the International Linear Collider (ILC) must be able to create and reliably maintain nanometer size beams. The ATF damping ring is the unique facility where ILC emittances...
Micromegas TPC beam tests at KEK (2005)
Bacala, A.M., Bellerive, A., Boudjemline, K., Colas, P., Dixit, M., Fujii, K., ...
-
Micromegas TPC beam tests at KEK (2005)
Bacala, A.M., Bellerive, A., Boudjemline, K., Colas, P., Dixit, M., Fujii, K., ...
-
Araki, S., Hayano, H., Higashi, Y., Honda, Y., Kanazawa, K., Kubo, K., ...
To reach design luminosity, the International Linear Collider (ILC) must be able to create and reliably maintain nanometer size beams. The ATF damping ring is the unique facility where ILC emittances...
Araki, S., Hayano, H., Higashi, Y., Honda, Y., Kanazawa, K., Kubo, K., ...
To reach design luminosity, the International Linear Collider (ILC) must be able to create and reliably maintain nanometer size beams. The ATF damping ring is the unique facility where ILC emittances...
Araki, S., Hayano, H., Higashi, Y., Honda, Y., Kanazawa, K., Kubo, K., ...
To reach design luminosity, the International Linear Collider (ILC) must be able to create and reliably maintain nanometer size beams. The ATF damping ring is the unique facility where ILC emittances...
Araki, S., Hayano, H., Higashi, Y., Honda, Y., Kanazawa, K., Kubo, K., ...
To reach design luminosity, the International Linear Collider (ILC) must be able to create and reliably maintain nanometer size beams. The ATF damping ring is the unique facility where ILC emittances...
Symmetry- and multiplet-resolved N 1s photoionization cross sections of the NO2 molecule (2004)
Saito,N., Toffoli,D., Lucchese,R., Nagoshi,M., De Fanis,A., Tamenori,Y., ...
Symmetry- and multiplet-resolved N 1s photoionization cross sections of the NO2 molecule (2004)
Saito, N., Toffoli, D., Lucchese, R., Nagoshi, M., De Fanis, A., Tamenori, Y., ...
Earliest detection of the optical afterglow of GRB 030329 and its variability (2003)
Sato, R., Kawai, N., Suzuki, M., Yatsu, Y., Kataoka, J., Takagi, R., ...
We report the earliest detection of an extremely bright optical afterglow of the gamma-ray burst (GRB) 030329 using a 30cm-telescope at Tokyo Institute of Technology (Tokyo, JAPAN). Our observation...
Alignment following Au L3 photoionization by synchrotron radiation (2003)
Yamaoka,H., Oura,M., Takahiro,K., Morikawa,T., Ito,S., Mizumaki,M., ...
The alignment of Au+ ions following L3 photoionization has been studied using a high-resolution x-ray spectrometer. We observed a small anisotropy for the angular dependence of Au L and L emissions....
Variable Star Network: World Center for Transient Object Astronomy and Variable Stars (2003)
Kato, T., Uemura, M., Ishioka, R., Nogami, D., Kunjaya, C., Baba, H., ...
Variable Star Network (VSNET, http://www.kusastro.kyoto-u.ac.jp/vsnet/) is a global professional-amateur network of researchers in variable stars and related objects, particularly in transient...
Kato, T., Nelson, P., Stockdale, C., Monard, B., Richards, T., Stubbings, R., ...
We photometrically observed four southern dwarf novae in outburst (NSV 10934, MM Sco, AB Nor and CAL 86). NSV 10934 was confirmed to be an SU UMa-type dwarf nova with a mean superhump period of...
The Earliest Optical Observations of GRB 030329 (2003)
Torii, K., Kato, T., Yamaoka, H., Kohmura, T., Okamoto, Y., Ohnishi, K., ...
We present the earliest optical imaging observations of GRB 030329 related to SN 2003dh. The burst was detected by the HETE-2 satellite at 2003 March 29, 11:37:14.67 UT. Our wide-field monitoring...
On the Possibility of V4444 Sgr as a Recurrent Nova (2003)
Kato, T., Yamaoka, H., Kiyota, S.
V4444 Sgr (Nova Sgr 1999) has been recently suggested to be a possible recurrent nova based on the detection of the preexisting dust, which may have been formed in a previous outburst. We examined...
Very high column density and small reddening towards GRB 020124 at z = 3.20 (2003)
Hjorth, J., Møller, P., Gorosabel, J., Fynbo, J. P. U., Toft, S., Jaunsen, A. O., ...
We present optical and near-infrared observations of the dim afterglow of GRB 020124, obtained between 2 and 68 hours after the gamma-ray burst. The burst occurred in a very faint (R > 29.5) Damped...
Superhumps in the Rarely Outbursting SU UMa-Type Dwarf Nova, HO Delphini (2003)
Kato, T., Nogami, D., Moilanen, M., Yamaoka, H.
We observed the 1994, 1996 and 2001 outbursts of HO Del. From the detection of secure superhumps, HO Del is confirmed to be an SU UMa-type dwarf nova with a superhump period of 0.06453(6) d. Based on...
Period change of Superhumps in the WZ Sge-Type Dwarf Nova, HV Virginis (2003)
Ishioka, R., Kato, T., Uemura, M., Pietz, J., Vanmunster, T., Krajci, T., ...
After 10 years of quiescence, HV Vir underwent a superoutburst in January 2002. We report time-series observations clearly revealing the period change of ordinary superhumps during the superoutburst....
Kato, T., Bolt, G., Nelson, P., Monard, B., Stubbings, R., Pearce, A., ...
We photometrically observed the 2002 August long outburst of BF Ara. The observation for the first time unambiguously detected superhumps (average period 0.08797(1) d), qualifying BF Ara as a genuine...
Kato, T., Uemura, M., Kiyota, S., Tanabe, K., Koizumi, M., Kida, M., ...
We observed the 2002 October-November outburst of the dwarf nova CW Mon. The outburst showed a clear signature of a premaximum halt, and a more rapid decline after reaching the outburst maximum. On...
Very High Column Density and Small Reddening toward GRB 020124 at z=3.20 (2003)
Hjorth, J., Moller, P., Gorosabel, J., Fynbo, J.U., Toft, S., Jaunsen, A.O., ...
We present optical and near-infrared observations of the dim afterglow of GRB 020124, obtained between 2 and 68 hr after the gamma-ray burst. The burst occurred in a very faint (R>~29.5) damped...
Alignment following Au L3 photoionization by synchrotron radiation (2003)
Yamaoka, H., Oura, M., Takahiro, K., Morikawa, T., Ito, S., Mizumaki, M., ...
The alignment of Au+ ions following L3 photoionization has been studied using a high-resolution x-ray spectrometer. We observed a small anisotropy for the angular dependence of Au L and L emissions....
Astrometric authentication of RX J2309.8+2135 as a nearby dwarf nova candidate (2002)
RX J2309.8+2135 = 1RXS J230949.6+213523 is an X-ray source discovered through the ROSAT all-sky survey. The object was later identified with a star showing a spectrum resembling a cataclysmic...
Kato, T., Santallo, R., Bolt, G., Richards, T., Nelson, P., Monard, B., ...
We photometrically observed three dwarf novae V877 Ara, KK Tel and PU CMa. We discovered undisputed presence of superhumps in V877 Ara and KK Tel, with mean periods of 0.08411(2) d and 0.08808(3) d,...
Is KT Mon a Classical Nova? (2002)
KT Mon has been considered as a classical nova in 1942 based on its light curve and spectroscopy. However, we noticed a unusual feature for a nova soon after its maximum: the early presence of high...
V463 Scuti (Nova Sct 2000): Rapidly Evolving Nova with a Prominent Premaximum Halt (2002)
Kato, T., Uemura, M., Haseda, K., Yamaoka, H., Takamizawa, K., Fujii, M.
We summarize photometric and spectroscopic observations of V463 Sct (Nova Sct 2000), which was originally thought to be a red variable. The spectrum taken on 2000 March 16.81 UT showed prominent...
Two X-Ray Bright Cataclysmic Variables with Unusual Activities: GZ Cnc and NSV 10934 (2002)
Kato, T., Dubovsky, P. A., Stubbings, R., Simonsen, M., Yamaoka, H., Nelson, P., ...
We report on a discovery of unexpected activities in two X-ray bright dwarf novae. GZ Cnc showed an anomalous clustering of outbursts in 2002, in contrast to a low outburst frequency in the past...
WZ Sge-Type Star V592 Herculis (2002)
Kato, T., Uemura, M., Matsumoto, K., Kinnunen, T., Garradd, G., Masi, G., ...
We observed the entire course of the 1998 outburst of V592 Her, which was originally reported as a nova in 1968. We have been able to construct a full light curve of the outburst, which is...
The Nature of V359 Centauri Revealed: New Long-Period SU UMa-Type Dwarf Nova (2002)
Kato, T., Stubbings, R., Nelson, P., Santallo, R., Ishioka, R., Uemura, M., ...
We detected four outbursts of V359 Cen (possible nova discovered in 1939) between 1999 and 2002. Time-resolved CCD photometry during two outbursts (1999 and 2002) revealed that V359 Cen is actually a...
Early-Phase Spectra of "Hypernova" SN 2002ap (2002)
Kinugasa, K., Kawakita, H., Ayani, K., Kawabata, T., Yamaoka, H., Deng, J. S., ...
The spectral evolution of the peculiar SN Ic 2002ap during the first 40 days is presented. The spectra display very broad absorption features, which are typical of "hypernovae". The maximum expansion...
Deep Transient Optical Fading in the WC9 Star WR 106 (2002)
Kato, T., Haseda, K., Takamizawa, K., Yamaoka, H.
We discovered that the WR9-type star WR 106 (HDE 313643) underwent a deep episodic fading in 2000. The depth of the fading (dV ~ 2.9 mag) surpassed those of all known similar "eclipse-like" fadings...
Kato, T., Haseda, K., Yamaoka, H., Takamizawa, K.
We discovered that the Wolf-Rayet (WR)+OB star binary, WR 104, renowned for its associated "dusty pinwheel nebula" recently spatially resolved with infrared interferometry, exhibits strong...
Recurrent Nova IM Normae (2002)
Kato, T., Yamaoka, H., Liller, W., Monard, B.
We detected the second historical outburst of the 1920 nova IM Nor. Accurate astrometry of the outbursting object revealed the true quiescent counterpart having a magnitude of R=17.0 mag and B=18.0...
The Type Ic Hypernova SN 2002ap (2002)
Mazzali, P. A., Deng, J., Maeda, K., Nomoto, K., Umeda, H., Hatano, K., ...
Photometric and spectroscopic data of the energetic Type Ic supernova (SN) 2002ap are presented, and the properties of the SN are investigated through models of its spectral evolution and its light...
V2540 Oph (Nova Oph 2002): Large-Amplitude Slow Nova with Strong Post-Outburst Oscillations (2002)
Kato, T., Yamaoka, H., Ishioka, R.
V2540 Oph (Nova Oph 2002) is a classical nova discovered by Katsumi Haseda and Yuji Nakamura on 2002 January 24. The light curve of this nova shows strong post-outburst oscillations as were observed...
Fabrication and Mechanical Performance of the ATLAS Central Solenoid (2002)
Mitzumaki, S., Makida, Y., Kobayashi, T., Yamaoka, H., Kondo, Y., Kawai, M., ...
Quench Protection and Safety of the ATLAS Central Solenoid (2002)
Makida, Y., Doi, Y., Haruyama, T., Kawai, M., Kobayashi, T., ...
Synthesis and hydrogel formation of fluorine-containing amphiphilic ABA triblock copolymers (2001)
Matsumoto, K, Nishimura, R, Mazaki, H, Matsuoka, H, Yamaoka, H
The structure of colloidal alloy crystals revealed by ultra-small-angle neutron scattering (2001)
Harada, T, Matsuoka, H, Yamamoto, T, Yamaoka, H, Lin, JS, Agamalian, MM, ...
Uemura, M., Kato, T., Matsumoto, K., Yamaoka, H., Takamizawa, K., Sano, Y., ...
We discovered the optical counterpart about 13 mag of a soft X-ray transient, XTE J1118+480 on 2000 March 30. We perform astrometry and provide the accurate position as R.A. = 11h18m10s.85, Decl. =...
Harada, T, Matsuoka, H, Ikeda, T, Yamaoka, H, Hamaya, N, Sasaki, S, ...
Design and development of the ATLAS central solenoid magnet (1999)
Yamamoto, A, Kondo, T, Doi, Y, Makida, Y, Tanaka, K, Haruyama, T, ...
The ATLAS central solenoid magnet is being constructed to provide a magnetic field of 2 T in the central tracking part of the ATLAS detector. As a key technology for a solenoid coil as thin as...
Design and development of the ATLAS central solenoid magnet (1999)
Yamamoto, A., Kondo, T., Doi, Y., Tanaka, K., Haruyama, T., Yamaoka, H., ...
Fabrication of Functionally Gradient Material by Slurry Stacking and Sintering Process. (1998)
Yamaoka, H., Yuki, M., Tahara, K., Irisawa, T.
Cylindrically shaped functionally gradient material (FGM) of stainless steel and zirconia has been fabricated by powder sintering process. To stack the mixed powders according to the designed...
A thin superconducting solenoid magnet for the WASA detector (1996)
Yamaoka, H, Yamamoto, A, Makida, Y, Kimura, N, Tanaka, K, Hirabayashi, H, ...
Test results of a single aperture 10 tesla dipole model magnet for the Large Hadron Collider (1995)
Yamamoto, A, Shintomi, T, Kimura, N, Doi, Y, Haruyama, T, Higashi, N, ...
Field and structure analysis of the new 56-mm aperture dipole magnets for LHC (1995)
Song, N, Yamamoto, A, Shintomi, T, Hirabayashi, H, Yamaoka, H
Development of twin aperture dipole magnets for the Large Hadron Collider (1995)
Yamamoto, A, Shintomi, T, Higashi, N, Hirabayashi, H, Kawamata, H, Song, N, ...
Development of a prototype thin superconducting solenoid magnet for the SDC detector (1995)
Yamamoto, A, Araoka, O, Doi, Y, Haruyama, T, Kasami, K, Kimura, N, ...
A carbon-oxygen star as progenitor of the type Ic supernova 1994 (1994)
Nomoto, K., Yamaoka, H., Pols, O.R., Iwamoto, K., Kumagai, S., ...
Development of 10 T dipole magnets for the Large Hadron Collider (1993)
Yamamoto, A, Hirabayashi, H, Yamaoka, H, Kawabata, S, Brianti, Giorgio, Leroy, D, ...
Yamagishi, T, Ozaki, M, Ikezono, T, Shimizu, T, Yamaoka, H, Furutani, Y, ...
To determine the presence and prevalence of regional contraction abnormalities in patients with angina pectoris, radionuclide ventriculography gated to an electrocardiogram was carried out in 22...
F. Furuta, DESY Maschinenphysik, Y. Higashi, T. Higo, H. Inoue, ...
Poster