From Wikipedia, the free encyclopedia
Jump to: navigation, search

The SPring-8 Angstrom Compact free electron LAser, referred to as SACLA (pronounced さくら (Sa-Ku-Ra)), is an free-electron laser (X-FEL) in Japan, embedded in the SPring-8 accelerator and synchrotron complex.[1][2] When it first came into operation 2011, it was the second X-FEL in the world and the first in Japan.[3][4]


Like other X-FELs, SACLA uses self-amplified spontaneous emission to achieve extremely high intensities of X-rays. SACLA uses in-vacuum, short-period undulators, which is one of the unique factors in its design that allows it to achieve sub-Ångstrom wavelengths of 0.6 Å at a relatively much shorter distance of 0.7 km, compared to other similar X-FELs like LCLS (2 km) or the European X-FEL (3.4 km).[3][5] An 8.5 GeV electron beam is used as the source.

Animated Short Films[edit]

SACLA has released a number of animated short films to promote its research capabilities to the public. In July 2013, SACLA released two animated short films titled "Picotopia", which discussed the cellular biology, and "Wasureboshi", which is about conception.[6]

On December 3, 2013, another animated short titled "Mirai Koshi: Harima SACLA" was released to promote the X-FEL's ability to detect atoms and molecules.[6]


  1. ^ "The SACLA (XFEL) home page". 
  2. ^ RIKEN (13 June 2011). "First X-ray lasing of SACLA: Next-generation facility up and running with powerful new X-ray laser.". ScienceDaily. Retrieved 1 May 2015. 
  3. ^ a b Huang, Zhirong; Lindau, Ingolf (31 July 2012). "Free-electron lasers: SACLA hard-X-ray compact FEL". Nature Photonics. Nature Publishing Group. 6: 505–506. doi:10.1038/nphoton.2012.184. Retrieved 1 May 2015. 
  4. ^ "RIKEN, JASRI unveil 'SACLA', Japan's first X-ray free electron laser". 11 April 2011. Retrieved 1 May 2015. 
  5. ^ Roberts, Jr., Glenn (17 January 2013). "A Growth Spurt for X-ray Lasers". SLAC Today. Stanford Linear Accelerator Center. Retrieved 1 May 2015. 
  6. ^ a b "Kamikaze Douga Creates Anime Short for SACLA Research Center". Anime News Network. 3 December 2013. Retrieved 1 May 2015. 

Further reading[edit]