Bragg curve spectroscopy

Gruhn, C.R.; Binimi, M.; Légrain, R.; Loveman, R. A.; Pang, Wei-Lin; Roach, Mack; Scott, D.K.; Shotter, A. C.; Symons, T. J. M.; Wouters, Jan; Zisman, Michael S.; DeVries, R.M.; Peng, Ying; Sondheim, W. E.

doi:10.1016/0029-554x(82)90612-7

Cited by 76 publications

(18 citation statements)

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“…In order to measure DDXs of fragment (Z 4 2) production, we developed a measurement system using a Bragg curve counter (BCC) technique [21]. The BCC system can measure fragments with high stopping powers, owing to the large geometrical efficiency and the low-energy loss due to the elimination of a DE detector, which effectively becomes a dead layer for heavy fragments, in front of a main detector.…”

Section: Introductionmentioning

confidence: 99%

Differential cross sections on fragment (2 ≤ Z ≤ 9) production for carbon, aluminum and silicon induced by tens-of-MeV protons

Hagiwara

Sanami

Oishi

et al. 2012

Journal of Nuclear Science and Technology

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The double-differential cross sections (DDXs) for the inclusive reactions producing heavy nuclei with Z ¼ 2-9 (fragments) from carbon, aluminum, and silicon targets induced by 50 and 70 MeV protons are systematically measured at several angles (308, 608, 908, and 1358) using a specially developed Bragg curve counter and the energy-time-of-flight method. The DDXs of a silicon target for the proton-induced reaction producing fragments heavier than lithium were measured for the first time. The present results are compared with past experimental data, the LA150 evaluated data by the Los Alamos group and several intranuclear cascade models (Bertini and ISOBAR), and the JAEA-version quantum molecular dynamics model (JQMD) coupled with the Generalized Evaporation Model (GEM), which are implemented in the Particle and Heavy Ion Transport code System (PHITS). The present results agree well with the past experimental data and LA150 data for a -particle production. For the fragments heavier than lithium, the present results show forward-peak angular distributions rather than isotropic ones stored in LA150. Calculations with the ISOBAR and GEM models well reproduced our experimental results except for light fragments especially in the high-energy region.

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Section: Introductionmentioning

confidence: 99%

Differential cross sections on fragment (2 ≤ Z ≤ 9) production for carbon, aluminum and silicon induced by tens-of-MeV protons

Hagiwara

Sanami

Oishi

et al. 2012

Journal of Nuclear Science and Technology

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“…After first successful attempts to use the socalled Bragg Curve Spectroscopy (BCS) to identify highly ionizing particles [6,7] several detectors exploiting characteristic features of the Bragg curve were built and used for various applications, proving their broad flexibility and usefulness [8][9][10][11][12][13][14][15]. Attractive features of such detectors are especially: very good atomic number resolution, up to ZB20; energy resolution of the order of 1%, possibility to cover large solid angles, resistance to radiation damage and the adjustable energy range of the detected particles (by varying the gas pressure).…”

Section: Description Of the Methodsmentioning

confidence: 99%

“…Integrating the charge with a long time constant (B8 ms; depending on particular detector dimensions) gives a signal with the amplitude being proportional to the particle energy. Although with this method the exact shape of the Bragg curve cannot be reproduced, the identification of the atomic numbers of the particles was nevertheless found to be satisfactory [7,8]. A later technique of sampling the ionization The maximum of the curve gives the so-called Bragg peak (BP) which is dependent on the charge of the particle.…”

Section: Description Of the Methodsmentioning

confidence: 99%

“…Only due to poorer statistics the ions of the higher atomic numbers are not so well represented. Furthermore, since the 8 Be isotopes decay in flight before reaching the BCD, the events corresponding to 7 Be and other Be isotopes, respectively, are well separated. Another characteristic property of the BP amplitude versus energy plot is the presence of clear ''punch through'' events corresponding to light ions with higher energy, which are not stopped in the BCD.…”

Section: Detector Performancementioning

confidence: 98%

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PISA – an experiment for fragment spectroscopy at the Internal Beam of COSY: application of an Axial Ionization Chamber

Barná

Bollini

Bubak

et al. 2004

Nuclear Instruments and Methods in Physics Research Section A:

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“…This kind of ionization chamber allows to perform a Bragg curve spectroscopy, first proposed by Gruhn [23], providing simultaneously and with intrinsically high resolution many details about the nature of the fragments stopped in the active volume, such as the nuclear charge Z (due to the nearly linear dependence of the Bragg peak (BP) amplitude on Z), the range R (the length of the ion track) and the energy E of the fragments stopped in the active volume. The PPAC is composed of a central cathode and two anode planes orthogonally oriented on each side at a distance of 2 mm.…”

Section: Experimental Set-upmentioning

confidence: 99%

Study of the population of neutron-rich heavy nuclei in the A~200 mass region via multinucleon transfer reactions

et al. 2017

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Abstract. Multineutron and multiproton transfer channels, populated in the inverse kinematics reaction 197 Au+ 130 Te at E lab =1.07 GeV, were measured at Laboratori Nazionali di Legnaro using the presently heaviest ion beam delivered by the PIAVE-ALPI accelerator complex and detecting both projectile-like and targetlike ions. To this end the large solid angle magnetic spectrometer PRISMA was coupled to a second arm for the detection of the heavy fragments in kinematic coincidence with the light ones selected and identified with the spectrometer. The data analysis is still in progress and will allow to compare the yields of both light and heavy partner with theoretical predictions performed with the GRAZING code to get quantitative information on transfer channels and the effect of evaporation and fission on the production rate of primary fragments. The mass integrated Z distribution, extracted from the experimental data, evidenced the population of proton pickup channels that, in conjunction with the neutron stripping ones from the 130 Te, open the path for the production of neutron-rich heavy nuclei. In the following, we will present some preliminary results as well as details on the experimental configuration and perspectives for future investigations in the neutron-rich heavy region.

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Bragg curve spectroscopy

Cited by 76 publications

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Differential cross sections on fragment (2 ≤ Z ≤ 9) production for carbon, aluminum and silicon induced by tens-of-MeV protons

Differential cross sections on fragment (2 ≤ Z ≤ 9) production for carbon, aluminum and silicon induced by tens-of-MeV protons

PISA – an experiment for fragment spectroscopy at the Internal Beam of COSY: application of an Axial Ionization Chamber

Study of the population of neutron-rich heavy nuclei in the A~200 mass region via multinucleon transfer reactions

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