Analog-to-digital conversion using custom CMOS analog memory for the EOS time projection chamber

Lee, K.L.; Arthur, A.; Jones, Ronald W.; Nakamura, Morikazu; Kleinfelder, S.; Ritter, H. G.; Wieman, H.

doi:10.1109/23.289323

Cited by 8 publications

(3 citation statements)

References 2 publications

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“…As shown in Figure 2 [15] data [3] data [4] data [1] data [2] data It is the alternating between which sampling array and intermediate storage array the sampling cell writes to, that resembles a ping-pong ball constantly changing its side of the table and, hence, the origin of the terminology. The two-stage transfer that is shown, extends the settling time for the secondary array to a full sampling cycle.…”

Section: Sampling Arraymentioning

confidence: 99%

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LAB4D: A low power, multi-GSa/s, transient digitizer with sampling timebase trimming capabilities

Roberts

Varner

Allison

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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The LAB4D is a new application-specific integrated circuit (ASIC) of the Large Analog Bandwidth Recorder and Digitizer with Ordered Readout (LABRADOR) family, for use in direct wideband radio frequency digitization such as is used in ultrahigh energy neutrino and cosmic ray astrophysics. The LAB4D is a single channel switched-capacitor array (SCA) 12-bit sampler with integrated analog-to-digital converters (ADC), developed in the TSMC 0.25 µm process.The LAB4D, operating at 3.2 GSa/s, contains 4096 total samples arranged in 32 windows, for a total record length of 1280 ns. The 3 dB bandwidth is approximately 1.3 GHz, with a directly-coupled 50 Ω input. This represents a factor of 16 increase in the sample depth and an increase in analog bandwidth in comparison to the previous generation (LAB3) digitizer. Individually addressable windows allow for sampling and digitization to occur simultaneously, leading to nearly dead time-free kHz readout rates. All biases and current references are generated via internal digital-to-analog converters (DACs), resulting in a digi- * tizer that requires minimal support circuitry. In addition, the LAB4D contains sample cell timebase trimming capabilities, reducing the intrinsic sample-tosample time variance to less than 5 ps, an improvement of about 80%. This feature allows the LAB4D to be used in precision timing applications and reduces post-hoc calibration requirements.

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Section: Sampling Arraymentioning

confidence: 99%

“…These devices have been thoroughly written about in high energy physics literature [1] [2][3] [4][5] [6]. Many have accomplished digitization speeds high enough for greater than Nyquist sampling of a GHz analog bandwidth signal.…”

Section: Introductionmentioning

confidence: 99%

LAB4D: A low power, multi-GSa/s, transient digitizer with sampling timebase trimming capabilities

Roberts

Varner

Allison

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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“…The TPC is filled with a 90% argon and 10% methane gas mixture at atmospheric pressure. The TPC was used in the EOS experiment at the Bevalac [6,18,9,3,23,7] where it was constructed by Lawrence Berkeley National Laboratory [6] Particles that are produced in the target pass through the gas, and while being bent by the magnetic field, they ionize the gas. Between the top and bottom of the TPC and parallel to JGG's magnetic field, a 10 kV electric field makes ionization electrons drift down to ground wires while ions are drifting up.…”

Section: Time Projection Chambermentioning

confidence: 99%

Cross section measurements in the main injector particle production (FNAL-E907) experiment at 58 GeV energy

Günaydın¹

2009

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Thesis Supervisor: Professor Yasar Onel 1 Cross-sections are presented for 58 GeV π, K, and p on a wide range of nuclear targets. These cross-sections are essential for determining the neutrino flux in measurements of neutrino cross-sections and oscillations. The E907 Main Injector Particle Production (MIPP) experiment at Fermilab is a fixed target experiment for measuring hadronic particle production using primary 120 GeV/c protons and secondary π, K, and p beams. The particle identification is made by dE/dx in a time projection chamber, and by time-of-flight, differentialČherenkov and ring imagingČherenkov detectors, which together cover a wide range of momentum from 0.1 GeV/c up to 120 GeV/c. MIPP targets span the periodic table, from hydrogen to uranium, including beryllium and carbon. The MIPP has collected ∼ 0.26 × 10 6 events of 58 GeV/c secondary particles produced by protons from the main injector striking a carbon target.Abstract Approved:Thesis Supervisor

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The large analog bandwidth recorder and digitizer with ordered readout (LABRADOR) ASIC

Varner

Ruckman

Nam

et al. 2007

Nuclear Instruments and Methods in Physics Research Section A:

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Three generations of full-custom analog integrated circuits designed for low-power, high-speed sampling of Radio-Frequency (RF) transients in excess of the Nyquist minimum have been developed. These 0.25µm CMOS devices are denoted the Large Analog Bandwidth Recorder and Digitizer with Ordered Readout (LABRADOR) ASICs and finally consist of 9 channels of 260 deep sampling. Continuous sampling is provided with common stop capability. Input analog bandwidth is approximately 1GHz and sampling speeds are adjustable from 0.02 to 3.7GSa/s. Completely parallel internal conversion supports 12-bit digitization and readout of all 2340 cells in under 50µs. * Corresponding author. Tel./

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Analog-to-digital conversion using custom CMOS analog memory for the EOS time projection chamber

Cited by 8 publications

References 2 publications

LAB4D: A low power, multi-GSa/s, transient digitizer with sampling timebase trimming capabilities

LAB4D: A low power, multi-GSa/s, transient digitizer with sampling timebase trimming capabilities

Cross section measurements in the main injector particle production (FNAL-E907) experiment at 58 GeV energy

The large analog bandwidth recorder and digitizer with ordered readout (LABRADOR) ASIC

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