Inverse compton scattering gamma ray source

Boucher, S.; Frigola, P.; Murokh, A.; Ruelas, M.; Jovanovic, Igor; Rosenzweig, James; Travish, G.

doi:10.1016/j.nima.2009.05.035

Cited by 26 publications

(13 citation statements)

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“…The quest for photocathodes that generate electron beams with increased brightness to drive x-ray free electron lasers (FEL) [1], energy recovery linacs (ERL) [2], electron cooling of hadron beams [3], inverse Compton scattering [4], and ultrafast electron diffraction (UED) [5] experiments has recently received much attention from the scientific community, resulting in a stronger interaction between accelerator and solid state physicists trying to identify suitable materials with improved performance for future accelerators and novel applications [6].…”

Section: Introductionmentioning

confidence: 99%

Cold electron beams from cryocooled, alkali antimonide photocathodes

Cultrera

Karkare

Lee

et al. 2015

Phys. Rev. ST Accel. Beams

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In this paper we report on the generation of cold electron beams using a Cs 3 Sb photocathode grown by codeposition of Sb and Cs. By cooling the photocathode to 90 K we demonstrate a significant reduction in the mean transverse energy validating the long-standing speculation that the lattice temperature contributes to limiting the mean transverse energy or intrinsic emittance near the photoemission threshold, opening new frontiers in generating ultrabright beams. At 90 K, we achieve a record low intrinsic emittance of 0.2 μm (rms) per mm of laser spot diameter from an ultrafast (subpicosecond) photocathode with quantum efficiency greater than 7 × 10 −5 using a visible laser wavelength of 690 nm.

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Section: Introductionmentioning

confidence: 99%

Cold electron beams from cryocooled, alkali antimonide photocathodes

Cultrera

Karkare

Lee

et al. 2015

Phys. Rev. ST Accel. Beams

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“…These sources enable applications such as ultrafast electron diffraction (UED) [2], inverse compton scattering [3], electron cooling of hadron beams [4], polarized electron beams for colliders, and modern light sources based on freeelectron lasers [5] or energy recovery linacs [6].…”

mentioning

confidence: 99%

Ultrabright and Ultrafast III–V Semiconductor Photocathodes

et al. 2014

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Crucial photoemission properties of layered III-V semiconductor cathodes are predicted using Monte Carlo simulations. Using this modeling, a layered GaAs structure is designed to reduce simultaneously the transverse energy and response time of the emitted electrons. This structure, grown by molecular beam epitaxy and activated to negative electron affinity, is characterized. The measured values of quantum efficiency and transverse energy are found to agree well with the simulations. Such advanced layered structures will allow generation of short electron bunches from photoinjectors with superior beam brightness.

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“…Recently, the development of the compact and quasimonochromatic photon (X-ray) source generator has proceeded, which is expected to be realized as portable photon generator device with higher energy than the photonuclear threshold energy [11][12][13][14]. Its application is expected to be one of the NDA techniques.…”

Section: Introductionmentioning

confidence: 99%

Precision requirement of the photofission cross section for the nondestructive assay

2017

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Abstract. Principle of the new NDA technique based on the photofission reaction rate ratio (PFRR) has been developed by Kimura et al for measurement of uranium enrichment by using the only relative measured counts of neutron produced by photofission reactions of 235 U and 238 U at different specific incident photon energies. In the past analysis, no attentions have been paid for relatively large uncertainty of photonuclear cross section of special nuclear materials around 10%. In the present paper, quantitative analysis was performed to reveal the impact of photonuclear cross section uncertainty to predicted value of the uranium enrichment by the PFRR methodology. And also, the requirement of photofission cross section precision was evaluated as less than 3%, to satisfy the uncertainty of PFRR methodology to within 5%.

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Inverse compton scattering gamma ray source

Cited by 26 publications

References 0 publications

Cold electron beams from cryocooled, alkali antimonide photocathodes

Cold electron beams from cryocooled, alkali antimonide photocathodes

Ultrabright and Ultrafast III–V Semiconductor Photocathodes

Precision requirement of the photofission cross section for the nondestructive assay

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