Charged Particle Spectroscopy on Omega (Final report)

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Using the 2-MeV Van de Graaf Accelerator at SUNY Geneseo's Nuclear Structure Laboratory, a {sup 3}He-implanted tantalum target was bombarded by 450-keV deuterons to produce high energy protons via the {sup 3}He(d,p){sup 4}He reaction. A 1500-{micro}m surface barrier detector with a 3/16 inch diameter collimator was placed at 8.75 cm from the target and 135{sup o} from the incident beam. A movable arm was setup so that an array of aluminum filters of varying thicknesses could be rotated in front of the detector. A 6-{micro}m mylar filter was also mounted on the movable arm and was used to calibrate the ... continued below

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19 p.

Creation Information

Fletcher, K.; Padalino, S.; Schwartz, B.; Olsen, M.; Wakeman, T. & Petrasso, R. January 1, 2001.

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Description

Using the 2-MeV Van de Graaf Accelerator at SUNY Geneseo's Nuclear Structure Laboratory, a {sup 3}He-implanted tantalum target was bombarded by 450-keV deuterons to produce high energy protons via the {sup 3}He(d,p){sup 4}He reaction. A 1500-{micro}m surface barrier detector with a 3/16 inch diameter collimator was placed at 8.75 cm from the target and 135{sup o} from the incident beam. A movable arm was setup so that an array of aluminum filters of varying thicknesses could be rotated in front of the detector. A 6-{micro}m mylar filter was also mounted on the movable arm and was used to calibrate the detector as described in the CR-39 experiment report. Eight aluminum filters with thicknesses ranging from 250pm to 1100{micro}m were in turn rotated in front of the collimator and spectra were taken for each. The results are shown on the attached graphs. The theoretical curve for each graph was generated using TRIM The exact energy distribution of the proton beam incident on the target was not known; because no such spectrum could be taken due to the high count rate for elastically scattered deuterons. Instead, it was assumed that the incident beam had a distribution similar to that measured through the 6-{micro}m mylar, namely, an average energy of 13.798 MeV with a standard deviation of 0.027 MeV. A program developed locally was used to generate an input file for TRIM with this distribution. Using this input file, TRIM simulations were run for various thicknesses of Aluminum, from 200 to 1100 {micro}m in 50-{micro}m increments. The solid line on the graph indicates the energies of the transmitted protons. The two dashed lines indicate one standard deviation above and below the average exit energy. TRIM agrees well with the experimental results.

Physical Description

19 p.

Notes

INIS; OSTI as DE00762157

Medium: P; Size: 19 pages

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  • Other Information: PBD: 1 Jan 2001

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  • Report No.: NONE
  • Grant Number: FG03-99SF21784
  • DOI: 10.2172/762157 | External Link
  • Office of Scientific & Technical Information Report Number: 762157
  • Archival Resource Key: ark:/67531/metadc723425

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 7, 2017, 4:27 p.m.

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Fletcher, K.; Padalino, S.; Schwartz, B.; Olsen, M.; Wakeman, T. & Petrasso, R. Charged Particle Spectroscopy on Omega (Final report), report, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc723425/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.