Simulation of a scintillator-based Compton telescope with micropattern readout

Varner, R. L.; Beene, J. R.

doi:10.1109/nssmic.2007.4437230

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…We previously demonstrated that the PPS can detect ultraviolet photons at 366 nm, as well as gamma rays from radioactive sources . With the addition of an internal photocathode conversion layer, the PPS could potentially be the low cost, flat detector required for a variety of Compton telescope imaging applications . By employing a gadolinium (Gd) conversion layer, the PPS could be configured as a neutron detector.…”

Section: Technology Projections and Applicationsmentioning

confidence: 99%

“…1 With the addition of an internal photocathode conversion layer, the PPS could potentially be the low cost, flat detector required for a variety of Compton telescope imaging applications. 9 By employing a gadolinium (Gd) conversion layer, the PPS could be configured as a neutron detector. Gadolinium with the highest neutron absorption coefficient of any element would function somewhat analogous to a photocathode, but instead of absorbing a photon and releasing a photoelectron, it would absorb a neutron and release a conversion electron into the gas to be detected by the PPS.…”

Section: Technology Projections and Applicationsmentioning

confidence: 99%

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Plasma panel‐based radiation detectors

Friedman

Ball

Beene³

et al. 2013

J Soc Info Display

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The plasma panel sensor (PPS) is a gaseous micropattern radiation detector under current development. It has many operational and fabrication principles common to plasma display panels. It comprises a dense matrix of small, gas plasma discharge cells within a hermetically sealed panel. As in plasma display panels, it uses nonreactive, intrinsically radiation-hard materials such as glass substrates, refractory metal electrodes, and mostly inert gas mixtures. We are developing these devices primarily as thin, low-mass detectors with gas gaps from a few hundred microns to a few millimeters. The PPS is a high gain, inherently digital device with the potential for fast response times, fine position resolution (<50-mm RMS) and low cost. In this paper, we report on prototype PPS experimental results in detecting betas, protons, and cosmic muons, and we extrapolate on the PPS potential for applications including the detection of alphas, heavy ions at low-to-medium energy, thermal neutrons, and X-rays

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Section: Technology Projections and Applicationsmentioning

confidence: 99%

Section: Technology Projections and Applicationsmentioning

confidence: 99%

Plasma panel‐based radiation detectors

Friedman

Ball

Beene³

et al. 2013

J Soc Info Display

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Tracking fast neutrons

Wang

Morris

2013

Nuclear Instruments and Methods in Physics Research Section A:

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Based on elastic collisions, the linear momentum of a fast neutron can be measured from as few as two consecutive recoil ion tracks plus the vertex position of the third collision, or 'two and half' ion tracks. If the time delay between the first two consecutive ion tracks is also measured, the number of ion tracks can be reduced to one and a half. The angular and magnitude resolutions are limited by ion range straggling to about ten percent. Multi-wire proportional chambers and light-field imaging are discussed for fast neutron tracking. Single-charge or single-photon detection sensitivity is required in either approach. Light-field imaging is free of charge-diffusion-induced image blur, but the limited number of photons available can be a challenge.1 H, 2 H and 3 He could be used for the initial development of fast neutron trackers based on light-field imaging.

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Front-End ASIC for a Silicon Compton Telescope

Geronimo

Fried

Frost

et al. 2008

IEEE Trans. Nucl. Sci.

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-We describe a front-end application specific integrated circuit (ASIC) developed for a silicon Compton telescope. Composed of 32 channels, it reads out signals in both polarities from each side of a Silicon strip sensor, 2 mm thick 27 cm long, characterized by a strip capacitance of 30 pF. Each front-end channel provides low-noise charge amplification, shaping with a stabilized baseline, discrimination, and peak detection with an analog memory. The channels can process events simultaneously, and the read out is sparsified. The charge amplifier makes uses a dual-cascode configuration and dual-polarity adaptive reset, The low-hysteresis discriminator and the multi-phase peak detector process signals with a dynamic range in excess of four hundred. An equivalent noise charge (ENC) below 200 electrons was measured at 30 pF, with a slope of about 4.5 electrons I pF at a peaking time of 4 p. With a total dissipated power of 5 mW the channel covers an energy range up to 3.2 MeV.

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Simulation of a scintillator-based Compton telescope with micropattern readout

Cited by 4 publications

References 3 publications

Plasma panel‐based radiation detectors

Plasma panel‐based radiation detectors

Tracking fast neutrons

Front-End ASIC for a Silicon Compton Telescope

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