On the decay time of luminescent screens of picosecond image tubes when measuring repeated signals in the accumulation mode

Vereshchagin, K. A.; Gornostaev, P. B.; Ivanova, S. V.; Kulechenkova, T. P.; Levina, G. P.; Makushina, V. A.; Meshkov, O.; Smirnov, Alexander V.; Shashkov, E. V.; Schelev, Mikhail Ya.

doi:10.3103/s1068335615010029

Cited by 2 publications

(4 citation statements)

References 4 publications

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“…In the course of our experiments we were able to watch the dependence of our P47 phosphor screen decay time as a function of the number of the applied electron pulses. Similar behavior to the P46 phosphor screens [4] was discovered: the P47 trailing edge becomes longer from approximately 150 ns up to approximately 360 ns when the P47 phosphor screen is irradiated either by a single 8 ps, 12 keV electron pulse or by a train of 100 of such single pulses.…”

Section: Fast Phosphor Picosecond Streak Tube For Ultrafast Laser Dia...supporting

confidence: 66%

“…For studying the streak tube phosphor screen characteristics, the laser experimental set-up was the same as described in our previous publications [3,4]. In the present experiments a home-made negative-feedback picosecond YAP : Nd laser [5] was used, operating simultaneously in Q-switched and modelocking regime.…”

Section: Fast Phosphor Picosecond Streak Tube For Ultrafast Laser Dia...mentioning

confidence: 99%

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Fast phosphor picosecond streak tube for ultrafast laser diagnostics in repetitive mode

Ageeva¹,

Gornostaev²,

Ivanova³

et al. 2015

Laser Phys. Lett.

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The well-established PIF-01/S1/P43 picosecond streak tube, designed 30 years ago and still manufactured at the A.M. Prokhorov General Physics Institute, was modified by replacing its traditional P43 phosphor screen with a P47 one having approximately three orders of magnitude shorter decay time. The experimental measurements of this decay time were provided by PIF-01/S1/P47 image tube photocathode irradiation either with a single or a train of 8 ps laser pulses separated by 8 ns from each other at a 1.08 μm wavelength. The results of our preliminary measurements of P47-BH phosphor (manufactured by Phosphor Technology Ltd) indicate the possibility of employing the PIF-01/S1/P47 streak tube for synchrotron diagnostics at a units megahertz repetition rate without the negative influence of ‘ghost images’ from the previous streak records.

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Section: Fast Phosphor Picosecond Streak Tube For Ultrafast Laser Dia...supporting

confidence: 66%

Section: Fast Phosphor Picosecond Streak Tube For Ultrafast Laser Dia...mentioning

confidence: 99%

Fast phosphor picosecond streak tube for ultrafast laser diagnostics in repetitive mode

Ageeva¹,

Gornostaev²,

Ivanova³

et al. 2015

Laser Phys. Lett.

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show abstract

“…Figure 2a shows an example of a frame (from now on we will call "frame" the digital image taken for a given exposure time, 50 ms in this case). Each frame can be seen as a matrix of pixels taking a value between 0 and 16,383 (2 14 − 1) on a scale of light intensity (that is, 14-bit resolution of our CCD camera). The value 0 corresponds to a pixel that has received neither light signal nor noise, while the value 16,383 corresponds to a pixel that has reached full saturation.…”

Section: Digitization and Beam Spot Characterization Methodsmentioning

confidence: 99%

“…The size of the phosphor grains is of 2-3 μm. This phosphor features a peak emission wavelength of 550 nm and a decay time of 1.5 ms at 10% of the light intensity [14]. Thanks to a potential of a few kV (set to +3.9 kV in this work) between the exit of the MCP and the phosphor, the electron shower is accelerated to hit the phosphor grains.…”

Section: Methodsmentioning

confidence: 99%

Real-time monitoring of a positron beam using a microchannel plate in single-particle mode

et al. 2020

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This work presents a real-time diagnostic method to monitor and characterize a positron beam by using a microchannel plate (MCP), a phosphor screen and a CCD camera. We propose a digitizing method based on single-particle detection. This approach offers the possibility to quantify the particles per unit time that interact with the MCP. This type of detector is based on a consolidated technology and its efficiency has been demonstrated for nuclear radiation and particles in many experiments. This work also presents the detection efficiency as a function of the positron kinetic energy in the range from 50 eV to 17 keV, essential for a complete characterization of the particle beam. The method allows the characterization of a positron beam in real time with a spatial resolution of the order of tens of microns. K: Accelerator modelling and simulations (multi-particle dynamics; single-particle dynamics); Beam-line instrumentation (beam position and profile monitors; beam-intensity monitors; bunch length monitors); Particle detectors; Real-time monitoring

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On the decay time of luminescent screens of picosecond image tubes when measuring repeated signals in the accumulation mode

Cited by 2 publications

References 4 publications

Fast phosphor picosecond streak tube for ultrafast laser diagnostics in repetitive mode

Fast phosphor picosecond streak tube for ultrafast laser diagnostics in repetitive mode

Real-time monitoring of a positron beam using a microchannel plate in single-particle mode

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