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

被引：11

作者：

Kato, Masahiro ^{[1
,2
]}

Saito, Norio ^{[1
,2
]}

Tiedtke, Kai ^{[2
,3
]}

Juranic, Pavle N. ^{[2
,3
]}

Sorokin, Andrey A. ^{[2
,3
,4
]}

Richter, Mathias ^{[2
,5
]}

Morishita, Yuichiro ^{[1
]}

Tanaka, Takahiro ^{[1
,2
]}

Jastrow, Ulf ^{[3
]}

Kroth, Udo ^{[5
]}

Schoeppe, Hendrik ^{[5
]}

Nagasono, Mitsuru ^{[2
]}

Yabashi, Makina ^{[2
]}

Tono, Kensuke ^{[2
]}

Togashi, Tadashi ^{[2
,6
]}

Kimura, Hiroaki ^{[6
]}

Ohashi, Haruhiko ^{[6
]}

Ishikawa, Tetsuya ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, NMIJ, Tsukuba, Ibaraki 3058568, Japan

[2] RIKEN, XFEL Project Head Off, Sayo, Hyogo 6795148, Japan

[3] DESY, D-22603 Hamburg, Germany

[4] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[5] PTB, D-10587 Berlin, Germany

[6] Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795198, Japan

来源：

METROLOGIA | 2010年 / 47卷 / 05期

关键词：

EXTREME-ULTRAVIOLET; SYNCHROTRON-RADIATION; RADIANT POWER; PTB; STANDARD; VACUUM;

D O I：

10.1088/0026-1394/47/5/002

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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%.

引用

页码：518 / 521

页数：4

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