Fluorescent screens and image processing for the APS linac test stand

Berg, William J.; Ko, Kwang-Ho

doi:10.1063/1.44348

Cited by 3 publications

(1 citation statement)

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“…Al 2 O 3 :Cr 3+ is widely used as the scintillation screen in beam diagnostics of ions, electron and photon in accelerators and light sources [3][4][5][6][7][8][9]. Radioluminescence of this material has been investigated by lots of experiments, in which particle beams were used giving rise to high ionization and displacement rates.…”

Section: Introductionmentioning

confidence: 99%

Measurements and characteristics of $$\hbox {Al}_{2}\hbox {O}_{3}{:}\hbox {Cr}^{3+}$$ Al 2 O 3 :

Zeng

Wei

et al. 2017

Radiat Detect Technol Methods

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Introduction To set up an online proton beam diagnostic system near the neutron production target of China Spallation Neutron Source (CSNS), a luminescence coating sprayed on the target window and a corresponding optic system were fabricated. In the work, the fabrication of Results The emission spectrum excited by 532-nm laser has two obvious peaks at 692.9 nm and 694.3 nm. The samples by flame spraying process with the powders obtained from melting method show higher luminescence intensity than the samples by plasma spraying process. It is observed that the luminescence intensity has some relationships with the alpha phase in the samples, which is deduced from the XRD and photoluminescence tests results. A lower temperature during the flame spraying process will help to keep more alpha phase in the material. The selected four samples show successful fluoresced results in the radioluminescence experiment. Conclusions The luminescence intensity of the coating is improved greatly by the studies on the fabrication process and the characteristics of the samples. The luminescence coating used in beam diagnostics will be fabricated by the confirmed technical process. More works will be continued to improve the characteristics of the luminescence light by controlling Cr concentration and annealing in 1200 ∼ 2000 • C environment in the future.

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Section: Introductionmentioning

confidence: 99%

Measurements and characteristics of $$\hbox {Al}_{2}\hbox {O}_{3}{:}\hbox {Cr}^{3+}$$ Al 2 O 3 :

Zeng

Wei

et al. 2017

Radiat Detect Technol Methods

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Status of the Advanced Photon Source (APS) linear accelerator

White

Berg

Fuja

et al.

Proceedings of International Conference on Particle Accelerators

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A beamline design and data acquisition with the 20-MeV, 20-ps electron beam for the higher-order mode studies of the APS SR-RF cavities

Song

Nassiri

Daly

Proceedings of International Conference on Particle Accelerators

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Table 1 Main Beam Parameters for the APS-SR System and the Chemistry Linac. A beamline has been designed and assembled to use the ANL Chemistry Division 20-MEV electron linac for the testing of higher-order mode excitation and damping in RF cavi-"/-GEVAPS StorageRing ] 20-MEV Linac ties. The beamline consists of two sections (a beam collimat-Mode single Nominal Maximumsingle to 60H2 ing section with a 1.5"-OD vacuum line, and a cavity test sec-# of bunch 1 20 60

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Fluorescent screens and image processing for the APS linac test stand

Cited by 3 publications

References 1 publication

Measurements and characteristics of $$\hbox {Al}_{2}\hbox {O}_{3}{:}\hbox {Cr}^{3+}$$ Al 2 O 3 :

Measurements and characteristics of $$\hbox {Al}_{2}\hbox {O}_{3}{:}\hbox {Cr}^{3+}$$ Al 2 O 3 :

Status of the Advanced Photon Source (APS) linear accelerator

A beamline design and data acquisition with the 20-MeV, 20-ps electron beam for the higher-order mode studies of the APS SR-RF cavities

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