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Tag archive: KEK

The art of decision making: STF phase-2 cavity choice

| 1 May 2008 One of the more difficult problems in conducting large-scale science projects is the process of decision making. The ability to make good decisions in a timely way can be an enormous challenge and can differentiate good management from not-so-good management. Category: Director's Corner | Tagged: , ,

Polishing the safety standards

| 27 March 2008 Superconducting cavities are the core, the heartbeat of the International Linear Collider. Their inside will be polished to literally make them sparkle without any speck of dust or crack because these could cause a decline of performance of the accelerator. There are several methods to polish the inside of the cavities, and electropolishing (EP) is one of them. The new EP system at KEK has started its test-run in January, and scientists are gathering basic data to evaluate the machine's capability. Category: Around the World | Tagged: ,

Meet Kazuko Toyomura

| 28 February 2008 Kazuko Toyomura has been assisting KEK's ILC activity for four years, and since Sakue Yamada was appointed as a Research Director last October, her involvement has become even deeper. “She is not 'officially' assigned as secretary for the International Detector Advisory Group (IDAG), but she has been taking care of my activities,” says Yamada. Toyomura is a secretary for the Institute of Particle and Nuclear Studies at KEK. Other than her new role in ILC detector community, Toyomura is managing the day-to-day activities for KEK's ILC detector and ZEUS experimental groups, including travel arrangements, guests and visitors support, and helping post-doc students. Category: Around the World | Tagged: ,

Looking inside

| 21 February 2008 At the ILC, roughly 16,000 superconducting RF cavities made of pure niobium will accelerate electrons and positrons to the high energy of 500 GeV. Each one-metre-long cavity consists of nine cells, polished to provide micrometre-level surface smoothness and absolutely no impurities. The inside of the cavities need to literally sparkle since any surface blemishes or dust could cause them to lose their superconductivity, making them unable to sustain the electric field needed to accelerate particles. ILC scientists around the world are devoted to trying to get a higher yield rate for producing good-quality cavities by improving surface treatment methods and inspection procedures. A group of scientists from Kyoto University and KEK jointly developed the novel inspection system to take a close look at the interior surface of the cavities, and produced remarkable results. Category: Feature | Tagged: , , , , ,

A horizontal challenge

| 17 January 2008 The world’s first horizontal multi-beam klystron has started its site acceptance test at DESY. Built by the Japanese company Toshiba, it is the first of three prototypes from different companies to arrive for the test that will determine whether the new klystron design works. The 10-megawatt horizontal klystron was developed for the European X-ray Free Electron Laser (XFEL) and is also part of the reference design for the ILC. Category: Around the World | Tagged: , , , ,

New year – new office

| 29 November 2007 If you talk about next year, devils will laugh at you. This is a Japanese saying that corresponds to the English saying, "Don't count your chickens before they're hatched." I do not want to be laughed at by the devil, but I would like to write about Building 2 at KEK. Category: Director's Corner | Tagged: ,

Building Understanding

| 2 August 2007 Every month, a lot of Asian researchers come to KEK to conduct their research or experiments. “We have had 45 visitors for fiscal year 2007 so far, including ten Korean researchers,” says Tomiko Shirakata, secretary at KEK’s Linear Collider Project Office. Shirkata is in charge of KEK’s visitors programme activities and provides all visitor supports such as arranging logistics, dealing with the consulate service for visa applications, and giving tips on how to spend days off in Japan. KEK launched the visitor programme in April 2006 aiming to facilitate the foreign researchers’ activities in Japan, especially for Asian researchers and students, who may have difficulties to conduct research overseas for some country-specific reasons. Category: Around the World | Tagged: , ,

A night of wonder

| 26 July 2007 Men and women wearing gaudy dresses, looking for customers under garish neon signs – this is a common sight in Kabuki-cho, Shinjuku, a famous entertainment and red-light district in Tokyo, Japan. Walking down an alleyway that has countless bars and nightclubs, you will see a hand-written sign posted on the billboard of a shabby building that says, “The Accelerator’s Night 3.” Category: Around the World | Tagged: ,

Mapping a magnet

| 26 July 2007 Three pairs of eyes cast one last look around the room. Have all scissors, ladders, metallic tables been removed? No pins or pens lying around anymore? Once the team is sure that nothing is left in the area, they close the security doors and give the go-ahead – the magnet that has been to space can be charged for the first time since its arrival at its new home in the DESY test beam. Before its field of 1 Tesla can bend the tracks of particles in a EUDET detector prototype, however, the scientists have to map the field very precisely. And they don't want steel-capped boots flying into the coil. Category: Feature | Tagged: , , ,

Akira Yamamoto – A man of calm and expressions

| 12 July 2007 Newly appointed as one of three ILC project managers, Akira Yamamoto is a scientist working at KEK specialising in superconducting magnet development. Category: Director's Corner | Tagged: , , ,
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