Taiwan Photon Source
From Wikipedia, the free encyclopedia
 External view of the TPS | |
| General properties | |
|---|---|
| Accelerator type | Storage ring |
| Beam type | Electron |
| Target type | Light source |
| Beam properties | |
| Maximum energy | 3 GeV |
| Maximum current | 500 mA |
| Maximum brightness | 10×1021 ph./s/0.1%/mm2/mrad2 |
| Physical properties | |
| Radius | 82.5 m (271 ft) |
| Circumference | 518.4 m (1,701 ft)[1] |
| Location | Hsinchu Science Park |
| Coordinates | 24°46′58″N 120°59′37″E / 24.78278°N 120.99361°E |
| Institution | National Synchrotron Radiation Research Center |
| Dates of operation | 2016 – present |
The Taiwan Photon Source (TPS) at Hsinchu Science Park (in East District, Hsinchu City, Taiwan) is a third-generation synchrotron radiation accelerator light source experimental facility. It was built and operated by the National Synchrotron Radiation Research Center. It is the second synchrotron accelerator designed and built by Taiwan. The project was proposed by Chen Chien-te of Academia Sinica in 2004, construction began in 2010, and it was completed and began operation in September 2016.[2] When it was tested in January 2015, the brightness intensity of the light source emitted by it was the highest in the world.[3]
The TPS uses a series of particle accelerators to push electrons up to nearly the speed of light, and then injects them into a storage ring that is 518.4 m (1,701 ft) in circumference. At every bend in the track, these electrons emit synchrotron radiation in the form of high-brightness X-rays. Scientists at multiple experimental stations around the ring use these X-rays for basic and applied research in a number of fields.
The 3 GeV main storage ring with a circumference of 518.4 m has 7 cycles. There are 14 linear gaps of 7 or 12 meters in length for mounting radiation devices: frequency-focusing magnets (undulators) with periods of 22 to 48 mm. The injection is supplemented from a 496.8 m circumference, 3 Hz repetition frequency synchrotron booster. The booster is filled by a 150 MeV linear accelerator.[4]
The Experimental Hall surrounds the storage ring and is divided into 7 sectors, each of which has access to X-ray beamlines, including those equipped with insertion devices and bending magnets. Each sector also corresponds to a laboratory and office module offering immediate access to the beamline. Due to this, the different beamlines are used in various disciplines and different techniques are employed. The disciplines are typically one or more of the following: materials science, physics, chemistry, life science, geoscience, environmental science, and related applied research fields.[5]
TPS uses
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The TPS produces high-brightness synchrotron radiation across a wide range of wavelengths, from infrared and visible light to soft and hard X-rays. This allows researchers to select specific types of radiation depending on the material or process under study. Compared with conventional laboratory sources, the intensity and coherence of the light produced at TPS enable experiments to be conducted more quickly and with higher precision, particularly in cases where weak signals or very small structures are involved.[6]
The facility is used in both basic and applied research. Hard X-rays, with wavelengths comparable to atomic spacing, are used to determine how atoms are arranged in materials, while soft X-rays can be used to study electronic structures and chemical bonding. These techniques are applied in fields such as materials science, semiconductor research, and structural biology, including the study of complex biomolecules such as proteins. Research carried out using synchrotron radiation has contributed to advances in understanding material properties and biological systems, which in turn support developments in electronics, energy technology, and medical science.[7]
