Narrow-band photon beam via laser Compton scattering in an energy recovery linac

被引：34

作者：

Akagi, T. ^{[1
]}

Kosuge, A. ^{[1
]}

Araki, S. ^{[1
]}

Hajima, R. ^{[3
,4
]}

Honda, Y. ^{[1
,2
]}

Miyajima, T. ^{[1
,2
]}

Mori, M. ^{[3
,4
]}

Nagai, R. ^{[3
,4
]}

Nakamura, N. ^{[1
,2
]}

Shimada, M. ^{[1
,2
]}

Shizuma, T. ^{[3
,4
]}

Terunuma, N. ^{[1
,2
]}

Urakawa, J. ^{[1
]}

机构：

[1] KEK, High Energy Accelerator Res Org, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan

[2] SOKENDAI Grad Univ Adv Studies, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan

[3] JAEA, Naka Ku, Tokai, Ibaraki 3191195, Japan

[4] Natl Inst Quantum & Radiol Sci & Technol QST, Naka Ku, Tokai, Ibaraki 3191106, Japan

来源：

PHYSICAL REVIEW ACCELERATORS AND BEAMS | 2016年 / 19卷 / 11期

关键词：

X-RAY SOURCE; FREQUENCY STABILIZATION; AVERAGE-POWER; GAMMA-RAYS; CAVITY; ENHANCEMENT; PULSES; ASSAY;

D O I：

10.1103/PhysRevAccelBeams.19.114701

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Narrow-bandwidth photon beams in the x-ray and.-ray energy ranges are expected to be applied in various fields. An energy recovery linac (ERL)-based laser Compton scattering (LCS) source employing a laser enhancement cavity can produce a high-flux and narrow-bandwidth photon beam. We conducted the first experiment of an ERL-based LCS source in combination with a laser enhancement cavity. We obtained LCS photons with an energy of 6.95 +/- 0.01 keV by colliding an electron beam of 20 MeV with a laser of 1064 nm wavelength. The photon flux at the interaction point was evaluated to be (2.6 +/- 0.1) x 10(7) photons/s with an average beam current of 58 mu A and an average laser power of 10 kW. The energy bandwidth was evaluated to be 0.4% (rms) with an opening angle of 0.14 mrad. The technologies demonstrated in this experiment are applicable for future ERL-based LCS sources.

引用

页数：17

共 43 条

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