First measurement of efficiency and precision of CCD detectors for high energy physics

Bailey, R.; Damerell, Chris; English, R.L.; Gillman, A. R.; Lintern, A.L.; Watts, S.; Wickens, F. J.

doi:10.1016/0167-5087(83)90413-1

Cited by 122 publications

(15 citation statements)

References 4 publications

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“…Some years ago they also found their application as particle detectors in elementary particle physics (Bailey et al 1983;Damerell et al 1987 and, where specially selected optical CCDs were used. Meanwhile a large detector system has been constructed.…”

Section: Charge Coupled Devices As Detectorsmentioning

confidence: 99%

Semiconductor Radiation Detectors

Lütz

2007

326

239

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Section: Charge Coupled Devices As Detectorsmentioning

confidence: 99%

Semiconductor Radiation Detectors

Lütz

2007

326

239

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“…In the case of Compton scattered electrons fiom the wall into the detector, the maximum electron energy occurs from backscattered photons: ["] E,-10-= hv( 2hvlmoc 22) 1 +2hv/m oc (17) For 250 kVp x-ray photons, the maximum energy of a recoil electron is calculated to be 0. where the gas is corrected for pressure change. In order to satisfy the first requirement of the Bragg-Gray principle, pressure cannot exceed a maximum value given by the following:…”

Section: Approach and Methodsmentioning

confidence: 99%

Time-specific measurements of energy deposition from radiation fields in simulated sub-micron tissue volumes

Famiano¹

1997

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The fallacy of human memory renders it impossible to fully acknowledge those who have assisted in a work without creating invidious distinctions by failing to remember someone who has helped. However, a few individuals out of the many who have contributed to this paper are listed here.Dr. David Hamby has patiently worked with me throughout the course of the research leading to this paper. His deep understanding of the subject and immense patience with inane questions has made the work progress quite efficiently. As well, his sense of humor has kept me out of trouble on more than one occasion. In addition, the tickets to sporting events have provided a great amount of comfort to a cluttered mind. Hopefully, this compliment will not sound condescending, as I consider Dr. Hamby a giant in his field.Dan Hague and Jim Miller, two very good fiends of mine, have helped out tremendously. Dan, by providing me with equipment to complete the project, helped me progress through the stages of this research quite expeditiously, Jim, by allowing me to use his workshop and providing helpful suggestions, as well as allowing me to keep him awake while others slept, helped make a great deal of this research possible.Finally, I mention my gracious, loving wife, Nikki, to whom this work (as all my work) is dedicated. By surviving many nights without me, evenings of little conversation because of mypreoccupation with other things, complaints, and tedious tasks to help me complete this paper, she has shown me a new level of patience, understanding, and compassion. To compile the help she has been to me through the written word would require volumes. Her beauty shall endure long after this paper -or its memory -ceases to exist. vii ... List of Tables vlllABSTRACT A tissue-equivalent spherical proportional counter is used with a modified amplifier system to measure specific energy deposited from a uniform radiation field for short periods of time (-lys to seconds) in order to extrapolate to dose in sub-micron tissue volumes. The energy deposited during these time intervals is compared to biological repair processes occurring withiin the same intervals after the initial energy deposition. The signal is integrated over a variable collection time which is adjusted with a square-wave pulse. Charge fiom particle passages is collected on the anode during the period in which the integrator is triggered, and the signal decays quickly to zero after the integrator feedback switch resets; the process repeats for every "triggering" pulse. Measurements of energy deposited from x rays, "'Cs gamma rays, and electrons from a "SrPY source for various time intervals are taken. Spectral characteristics as a function of charge collection time are observed and frequency plots of specific energy and collection time-interval are presented. In addition, a threshold energy flux is selected for each radiation type at which the formation of radicals (based on current measurements) in mammalian cells equals the rate at which radicals ...

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“…The first demonstration that CCDs can be used as tracking detectors was already done in 1983 in a CERN test beam, where these sensors showed a 98% detection efficiency and a spatial resolution in the range of 4.3-6.1 mm [11]. Since then, these devices have been used in several experiments, such as the VXD3 at the Stanford Linear Accelerator Center (SLAC) [12].…”

Section: Introductionmentioning

confidence: 99%

A test beam setup for the characterization of the Geiger-mode avalanche photodiode technology for particle tracking

Figueras

Alonso

Trenado

et al. 2012

Nuclear Instruments and Methods in Physics Research Section A:

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Keywords:The Geiger-mode avalanche photodiode (GAPD) CMOS EUDET/AIDA telescope Schottky detector Test beam Trigger logic unit (TLU). a b s t r a c tIt is well known that avalanche photodiodes operated in the Geiger mode above the breakdown voltage offer a virtually infinite gain and time accuracy in the picosecond range that can be used for single photon detection. However, their performance in particle detection still remains unexplored. In this contribution, we are going to expose different steps that we have taken in order to prove the efficiency of the Geiger mode avalanche photodiodes in the aforementioned field. In particular, we will present a setup for the characterization of these sensors in a test beam. The expected results of the test beam at DESY and CERN have been simulated with Geant4 and will also be exposed.

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First measurement of efficiency and precision of CCD detectors for high energy physics

Cited by 122 publications

References 4 publications

Semiconductor Radiation Detectors

Semiconductor Radiation Detectors

Time-specific measurements of energy deposition from radiation fields in simulated sub-micron tissue volumes

A test beam setup for the characterization of the Geiger-mode avalanche photodiode technology for particle tracking

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