Analysis of Doppler-shift attenuation measurements performed with accelerator-produced monoenergetic neutrons

T. Belgya; G. Molnàr; S. W. Yates

doi:10.1016/0375-9474(96)00221-7

Analysis of Doppler-shift attenuation measurements performed with accelerator-produced monoenergetic neutrons

T. Belgya
, G. Molnàr
, S. W. Yates

Chemistry

Producción científica: Article › revisión exhaustiva

109 Citas (SciVal)

Resumen

Methods employed for the analysis of Doppler-shift attenuation data, obtained for nuclei excited by the inelastic scattering of accelerator-produced monoenergetic neutrons on large samples are presented. Analytical formulas were derived to describe the influence of two major considerations in the analysis. The reaction mechanism for stopping of recoil nuclei was found to increase the attenuation factor F(Τ) calculated with the center-of-mass initial velocity, while geometrical effects tend to decrease F(Τ). It is also shown that the influence of these major factors can be minimized by keeping the neutron energy close to the level threshold and by minimizing the target size. The formulas obtained can be used for any reaction that proceeds via the compound nucleus mechanism and for targets of sufficient size to stop the recoiling nuclei.

Idioma original	English
Páginas (desde-hasta)	43-61
Número de páginas	19
Publicación	Nuclear Physics A
Volumen	607
N.º	1
DOI	https://doi.org/10.1016/0375-9474(96)00221-7
Estado	Published - sept 9 1996

Nota bibliográfica

Funding Information:
The authorsw ouldlike to thankt heirc olleagueast the Instituteo f Isotopesfo r the many helpful discussionsa nd the staff and graduates tudentsa t the Universityo f Kentuckyf or their assistancein performinge xperimentaml easurementths at have stimulatedth ese studies.W e are also indebtedt o Prof. J. Wile for his valuable suggestionisn the preparatioonf this manuscriptT.h is work was supporteidn part by HungarianO TKA grantN o. T 017559b y the US NationalS cienceF oundationG rant No. PHY-9300077a nd US-HungarianJo int Fund JFNo. 403.

Financiación

The authorsw ouldlike to thankt heirc olleagueast the Instituteo f Isotopesfo r the many helpful discussionsa nd the staff and graduates tudentsa t the Universityo f Kentuckyf or their assistancein performinge xperimentaml easurementths at have stimulatedth ese studies.W e are also indebtedt o Prof. J. Wile for his valuable suggestionisn the preparatioonf this manuscriptT.h is work was supporteidn part by HungarianO TKA grantN o. T 017559b y the US NationalS cienceF oundationG rant No. PHY-9300077a nd US-HungarianJo int Fund JFNo. 403.

Financiadores	Número del financiador
HungarianO TKA	T 017559b
US NationalS cienceF oundationG

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0375-9474(96)00221-7

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title = "Analysis of Doppler-shift attenuation measurements performed with accelerator-produced monoenergetic neutrons",

abstract = "Methods employed for the analysis of Doppler-shift attenuation data, obtained for nuclei excited by the inelastic scattering of accelerator-produced monoenergetic neutrons on large samples are presented. Analytical formulas were derived to describe the influence of two major considerations in the analysis. The reaction mechanism for stopping of recoil nuclei was found to increase the attenuation factor F(Τ) calculated with the center-of-mass initial velocity, while geometrical effects tend to decrease F(Τ). It is also shown that the influence of these major factors can be minimized by keeping the neutron energy close to the level threshold and by minimizing the target size. The formulas obtained can be used for any reaction that proceeds via the compound nucleus mechanism and for targets of sufficient size to stop the recoiling nuclei.",

keywords = "Analysis method, DSAM, Doppler shift, F(Τ), Τ",

author = "T. Belgya and G. Moln{\`a}r and Yates, \{S. W.\}",

note = "Funding Information: The authorsw ouldlike to thankt heirc olleagueast the Instituteo f Isotopesfo r the many helpful discussionsa nd the staff and graduates tudentsa t the Universityo f Kentuckyf or their assistancein performinge xperimentaml easurementths at have stimulatedth ese studies.W e are also indebtedt o Prof. J. Wile for his valuable suggestionisn the preparatioonf this manuscriptT.h is work was supporteidn part by HungarianO TKA grantN o. T 017559b y the US NationalS cienceF oundationG rant No. PHY-9300077a nd US-HungarianJo int Fund JFNo. 403.",

year = "1996",

month = sep,

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doi = "10.1016/0375-9474(96)00221-7",

language = "English",

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AU - Belgya, T.

AU - Molnàr, G.

AU - Yates, S. W.

N1 - Funding Information: The authorsw ouldlike to thankt heirc olleagueast the Instituteo f Isotopesfo r the many helpful discussionsa nd the staff and graduates tudentsa t the Universityo f Kentuckyf or their assistancein performinge xperimentaml easurementths at have stimulatedth ese studies.W e are also indebtedt o Prof. J. Wile for his valuable suggestionisn the preparatioonf this manuscriptT.h is work was supporteidn part by HungarianO TKA grantN o. T 017559b y the US NationalS cienceF oundationG rant No. PHY-9300077a nd US-HungarianJo int Fund JFNo. 403.

PY - 1996/9/9

Y1 - 1996/9/9

N2 - Methods employed for the analysis of Doppler-shift attenuation data, obtained for nuclei excited by the inelastic scattering of accelerator-produced monoenergetic neutrons on large samples are presented. Analytical formulas were derived to describe the influence of two major considerations in the analysis. The reaction mechanism for stopping of recoil nuclei was found to increase the attenuation factor F(Τ) calculated with the center-of-mass initial velocity, while geometrical effects tend to decrease F(Τ). It is also shown that the influence of these major factors can be minimized by keeping the neutron energy close to the level threshold and by minimizing the target size. The formulas obtained can be used for any reaction that proceeds via the compound nucleus mechanism and for targets of sufficient size to stop the recoiling nuclei.

AB - Methods employed for the analysis of Doppler-shift attenuation data, obtained for nuclei excited by the inelastic scattering of accelerator-produced monoenergetic neutrons on large samples are presented. Analytical formulas were derived to describe the influence of two major considerations in the analysis. The reaction mechanism for stopping of recoil nuclei was found to increase the attenuation factor F(Τ) calculated with the center-of-mass initial velocity, while geometrical effects tend to decrease F(Τ). It is also shown that the influence of these major factors can be minimized by keeping the neutron energy close to the level threshold and by minimizing the target size. The formulas obtained can be used for any reaction that proceeds via the compound nucleus mechanism and for targets of sufficient size to stop the recoiling nuclei.

KW - Analysis method

KW - DSAM

KW - Doppler shift

KW - F(Τ)

KW - Τ

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U2 - 10.1016/0375-9474(96)00221-7

DO - 10.1016/0375-9474(96)00221-7

M3 - Article

AN - SCOPUS:0030576805

SN - 0375-9474

VL - 607

SP - 43

EP - 61

JO - Nuclear Physics A

JF - Nuclear Physics A

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Analysis of Doppler-shift attenuation measurements performed with accelerator-produced monoenergetic neutrons

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ASJC Scopus subject areas

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