Measurement of the single-shot pulse energy of a free electron laser using a cryogenic radiometer

Autor:	Hendrik Schöppe, Takahiro Tanaka, Tetsuya Ishikawa, Kai Tiedtke, Andrey A. Sorokin, Yuichiro Morishita, Haruhiko Ohashi, Pavle Juranić, Mathias Richter, Mitsuru Nagasono, U. Jastrow, Udo Kroth, Makina Yabashi, Masahiro Kato, Tadashi Togashi, Kensuke Tono, Norio Saito, Hiroaki Kimura
Rok vydání:	2010
Předmět:	Physics Radiometer business.industry General Engineering Free-electron laser SPring-8 Cryogenics Laser Particle detector law.invention Pulse (physics) Optics law Extreme ultraviolet business
Zdroj:	Metrologia. 47:518-521
ISSN:	1681-7575 0026-1394
Popis:	The absolute single-shot pulse energy of the SPring 8 extreme ultraviolet (EUV) free electron laser (FEL) was measured using a cryogenic radiometer with a relative standard uncertainty of 3%. The temperature change of the cavity in the cryogenic radiometer caused by an incident FEL pulse was determined using a lock-in amplifier and an ac Wheatstone bridge. The measured pulse energies were compared with a gas-monitor detector developed by Physikalisch-Technische Bundesanstalt/Deutsches Elektronen-Synchrotron/Ioffe Physico-Technical Institute (Ioffe) at a wavelength of 51.3 nm at the SPring-8 EUV-FEL in a shot-to-shot mode. The pulse energies measured using the two detectors agree within 2.0%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1d8f065e46801764893b582243c19019 https://doi.org/10.1088/0026-1394/47/5/002 Zobrazit plný text záznamu