The Application of Silicon Detectors to Alpha Particle Spectroscopy

Chetham-Strode, A.; Tarrant, J.; Silva, R. J.

doi:10.1109/tns2.1961.4315800

Cited by 16 publications

(4 citation statements)

References 1 publication

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“…By using a calibrated pulse generator the pulse amplitude produced by a 5. 15 MeV alpha particle across the detector of known capacitance was found, and this permitted a confirmation of the average energy required to produce an electron-hole pair in silicon.…”

Section: Resultsmentioning

confidence: 82%

Silicon radiation detectors and some simple applications

Williams¹

1967

Phys. Educ.

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The semiconductor detector of ionizing radiations is rapidly becoming standard equipment in nuclear physics research experiments. The devices have many advantages the most important of which is that they can be made into spectrometers. The elementary physics of their operation is outlined here together with the techniques of their use. Details are also given of some student laboratory experiments that have been performed with silicon detectors in order to demonstrate certain aspects of nuclear and solid-state physics.

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Section: Resultsmentioning

confidence: 82%

Silicon radiation detectors and some simple applications

Williams¹

1967

Phys. Educ.

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“…(1) If z/r is too small to permit simulation of the source to a point, calculated geometry by Eq. (1) is larger than the true geometry. (2) There is the effect of self-absorption of the a source.…”

Section: Low Geometry a Countingmentioning

confidence: 96%

Absolute Measurements of the Disintegration Rates of Americium-241 Sources by Using Semiconductor Detectors

Shimizu

Tamura

Sakurai

1964

Journal of Nuclear Science and Technology

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Low geometry a counting and a-particlef'Y-ray coincidence counting were made to determine the absolute disintegration rate of an 241 Am source. Alpha particles were counted by silicon junction detectors and '}'-rays by an Nai(Tl) crystalphotomultiplier system. The half life of the 60 keV level of 237 Np was measured to check the effect of the coincidence resolving time in the absolute measurement of the americium source by a-'}' coincidence counting; the half life measured was 6.3 X w-s sec. The mean value of the absolute disintegration rate of a typical 241 Am souree measured by coincidence counting was 1.696 X 10 4 dps and the 90% confidence interval for the mean value was (1.679 X 10 4 dps, 1. 713 X 10 4 dps). Accurate absolute measurements by low geometry a particle counting are very difficult especially for very small semiconductor detectors because of the difficulty of measuring the accurate geometries.

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“…This capability is illustrated by the 11 kev (0.18y0 FWHM) resolution in the 2123i alpha spectrum observed with a surface barrier at room temperature by George and Gunnersen (1964 a), and for diffused junctions by the fine structure observed in the 241Am alpha spectrum by . Isotopic analysis is an application involving more detailed alpha spectra: for example, in the analysis of the actinium series alpha spectrum from 231Pa (Chetham-Strode et al 1961), or in the analysis of weak uranium sources (White et al 1965). I n the latter example the overall resolution may be limited by electronics drift during the necessarily long counting periods.…”

Section: Radiationsmentioning

confidence: 99%

Recent applications of semiconductor techniques in the study of nuclear radiations

Gunnersen

1967

Rep. Prog. Phys.

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The Application of Silicon Detectors to Alpha Particle Spectroscopy

Cited by 16 publications

References 1 publication

Silicon radiation detectors and some simple applications

Silicon radiation detectors and some simple applications

Absolute Measurements of the Disintegration Rates of Americium-241 Sources by Using Semiconductor Detectors

Recent applications of semiconductor techniques in the study of nuclear radiations

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