Towards a new generation axion helioscope
نویسندگان
چکیده
منابع مشابه
The Tokyo Axion Helioscope Experiment ∗
A preliminary result of the solar axion search experiment at the University of Tokyo is presented. We searched for axions which could be produced in the solar core by exploiting the axion helioscope. The helioscope consists of a superconducting magnet with field strength of 4 Tesla over 2.3 meters. From the absence of the axion signal we set a 95 % confidence level upper limit on the axion coup...
متن کاملRecent Results from the Tokyo Axion Helioscope Experiment
We have searched for axions which could have been produced in the solar core using an axion helioscope which is equipped with a 2.3 m-long 4 T superconducting magnet , PIN-photodiode x-ray detectors, and a telescope mount mechanism to track the sun. A gas container to hold dispersion-matching gas has been developed and a mass region up to ma = 0.26 eV was newly explored. Preliminary analysis se...
متن کاملTowards a realistic axion star
In this work we estimate the radius and the mass of a self-gravitating system made of axions. The quantum axion field satisfies the Klein-Gordon equation in a curved space-time and the metric components of this space-time are solutions to the Einstein equations with a source term given by the vacuum expectation value of the energy-momentum operator constructed from the axion field. As a first s...
متن کاملAn x-ray detector using PIN photodiodes for the axion helioscope
An x-ray detector for a solar axion search was developed. The detector is operated at 60K in a cryostat of a superconducting magnet. Special care was paid to microphonic noise immunity and mechanical structure against thermal contraction. The detector consists of an array of PIN photodiodes and tailor made preamplifiers. The size of each PIN photodiode is 11 × 11 × 0.5 mm and 16 pieces are used...
متن کاملTowards a New Generation of Organizational Design
Organizational design is an important and longstanding issue in management thought. Until recently, the literature on this subject developed incrementally. But during the last decades, several attempts have been made to renew organizational design considerably by combining it with principles from organizational development, a current in management literature that was considered antithetical to ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2011
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2011/06/013