Fast-neutron spectroscopy with thick organic scintillators

Burrus, W.R.; Verbinski, V.V.

doi:10.1016/0029-554x(69)90446-7

Cited by 109 publications

(16 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition to the requirement of a well-known response matrix, R^(Ej), further requirements on a neutron spectrometer are: the capability to discriminate photons and to cover a wide energy range from thermal to at least 20MeV. Bonner sphere (BSS) and proton recoil (PRS) spectrometers are best suited for this purpose as was been demonstrated more than 20 years ago [25,29,50]. Since then considerable progress has been achieved in determining the response functions and analysing the measured data.…”

Section: Neutron Spectrometersmentioning

confidence: 99%

Neutron dosimetry

et al. 1996

View full text Add to dashboard Cite

Neutron dosimetry is of practical relevance in a wide energy range of at least ten orders of magnitude. However, the dose quantities used in radiation protection are not directly measurable. This is mainly due to the variable quality of neutron radiation, expressed by radiation weighting factors (in the effective dose) or quality factors (in the dose equivalent). In spite of considerable progress in neutron dosimetry there is no dosemeter which is capable of measuring neutron doses independently of the neutron spectrum with adequate accuracy. A review is given of dose quantities, calibration methods and procedures to determine the dose at workplaces with instrumentation of limited capability. The properties of these instruments including area dosemeters, individual dosemeters and spectrometers are reviewed and increasing demands discussed. As a conclusion, there is a need for further research, development and exploration of workplace conditions. RÉSUMÉ En dosimétrie des neutrons, les situations pratiques rencontrées couvrent un large domaine d'énergie s'étendant sur plus de 10 décades. En outre, les grandeurs dosimétriques utilisées en radioprotection ne sont pas directement accessibles à la mesure. Ce dernier point est principalement dû à la variation de la "qualité" du rayonnement neutronique, exprimé au moyen des facteurs de pondération radiologiques (pour le calcul de la dose efficace) et des facteurs de qualité (pour le calcul de l'équivalent de dose). En dépit des progrès considérables réalisés dans le domaine de la dosimetric des neutrons, il n'y a pas encore aujourd'hui de dosimètre susceptible de mesurer la dose due aux neutrons avec une précision acceptable quel que soit le spectre en énergie. Cet article présente les grandeurs dosimétriques utilisées en radioprotection. Il traite également des méthodes et des procédures d'étalonnages adaptées à la détermination de la dose aux postes de travail avec les appareils actuels dont les performances sont limitées. Les propriétés de ces instruments, incluant les dosimètres de zone, les dosimètres individuels et les ensembles de spectrométrie, sont décrites et les améliorations nécessaires exposées. En conclusion, la situation actuelle requiert des recherches complémentaires pour le développement des techniques de dosimetric et l'étude des postes de travail. *Cet article fait partie d'une série d'articles de synthèse consacrés à la dosimetric et qui sera publiée durant l'année 1996.

show abstract

Section: Neutron Spectrometersmentioning

confidence: 99%

Neutron dosimetry

et al. 1996

View full text Add to dashboard Cite

show abstract

“…These spectra can be used to test Monte-Carlo codes for this energy range. The data can also be applied to codes for deconvolving energy-loss spectra in a way analogous to the deconvolution of pray and neutron spectra in organic scintillators (Burrus and Verbinski, 1969;Ingersoll and Wehring, 1977). It is worthwhile to point out here that organic scintillators could be used in a calorimeter design.…”

Section: \ Back Cps //mentioning

confidence: 99%

Neutron techniques

et al. 1988

View full text Add to dashboard Cite

Three experimental methods are described which hold the most promise for improved energy resolution, time resolution and sensitivity in the detection of solar neutrons on satellites and/or long duration balloon flights. These are: (1) The Neutron Calorimeter, (2) SONTRAC (Solar Neutron Track Chamber), and (3)The Solar Neutron Decay Proton Detector. The characteristics of the three methods as to energy range, energy resolution, time resolution, detection efficiency, and physical properties are delineated. The Introduction gives a brief description of earlier techniques which were used to measure the intensity of high-energy cosmic-ray neutrons at the top of the atmosphere and to search for solar neutrons. The past three decades of detector development has now reached the point where we have the capability of making comprehensive and detailed measurements of solar neutrons on future space missions.

show abstract

“…3 and that of the iron slabs averaged 7.79 grams/cm 3 . The average composition of the slabs is shown in Table I, where it is to be observec'I.…”

Section: Description Of the Experimentsmentioning

confidence: 99%