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Title: Measurement of the 183 keV Resonance in 17O(p,alpha) 14N using a Novel Technique

Abstract

We have developed a novel technique for measurements of low energy (p,alpha) reactions using heavy ion beams and a differentially-pumped windowless gas target. We applied this new approach to study the 183 keV resonance in the 17O(p,alpha)14}N reaction. We report a resonance energy (center-of-mass) of 183.5{+0.1}{-0.4} keV, a resonance strength of 1.70 +/- 0.15 meV, and set an upper limit (95\% confidence) on the total width of the state of < 0.1 keV. This resonance is important for the 17O(p,alpha)14}N reaction rate, and we find that 18F production is significantly decreased in low mass ONeMg novae but less affected in more energetic novae. We also report the first determination of the stopping power for oxygen ions in hydrogen gas near the peak of the Bragg curve (E=193 keV/u) to be (63+/-1)e-15 eV-cm2.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Holifield Radioactive Ion Beam Facility
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
931768
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review C; Journal Volume: 75
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; BRAGG CURVE; HEAVY IONS; HYDROGEN; MESONS; NOVAE; OXYGEN IONS; PRODUCTION; REACTION KINETICS; RESONANCE; STOPPING POWER; novae HRIBF

Citation Formats

Moazen, Brian H, Bardayan, Daniel W, Blackmon, Jeff C, Chae, Kyung Yuk, Chipps, Kelly A, Domizioli, Carlo P, Fitzgerald, Ryan, Greife, Uwe, Hix, William Raphael, Grzywacz-Jones, Kate L, KOZUB, RAYMOND L, Lingerfelt, Eric J, Livesay, Jake, Nesaraja, Caroline D, Pain, Steven D, Roberts, Luke F, Shriner, Jr., John F, Smith, Michael Scott, and Thomas, Jeffrey S. Measurement of the 183 keV Resonance in 17O(p,alpha)14N using a Novel Technique. United States: N. p., 2007. Web. doi:10.1103/PhysRevC.75.065801.
Moazen, Brian H, Bardayan, Daniel W, Blackmon, Jeff C, Chae, Kyung Yuk, Chipps, Kelly A, Domizioli, Carlo P, Fitzgerald, Ryan, Greife, Uwe, Hix, William Raphael, Grzywacz-Jones, Kate L, KOZUB, RAYMOND L, Lingerfelt, Eric J, Livesay, Jake, Nesaraja, Caroline D, Pain, Steven D, Roberts, Luke F, Shriner, Jr., John F, Smith, Michael Scott, & Thomas, Jeffrey S. Measurement of the 183 keV Resonance in 17O(p,alpha)14N using a Novel Technique. United States. doi:10.1103/PhysRevC.75.065801.
Moazen, Brian H, Bardayan, Daniel W, Blackmon, Jeff C, Chae, Kyung Yuk, Chipps, Kelly A, Domizioli, Carlo P, Fitzgerald, Ryan, Greife, Uwe, Hix, William Raphael, Grzywacz-Jones, Kate L, KOZUB, RAYMOND L, Lingerfelt, Eric J, Livesay, Jake, Nesaraja, Caroline D, Pain, Steven D, Roberts, Luke F, Shriner, Jr., John F, Smith, Michael Scott, and Thomas, Jeffrey S. Mon . "Measurement of the 183 keV Resonance in 17O(p,alpha)14N using a Novel Technique". United States. doi:10.1103/PhysRevC.75.065801.
@article{osti_931768,
title = {Measurement of the 183 keV Resonance in 17O(p,alpha)14N using a Novel Technique},
author = {Moazen, Brian H and Bardayan, Daniel W and Blackmon, Jeff C and Chae, Kyung Yuk and Chipps, Kelly A and Domizioli, Carlo P and Fitzgerald, Ryan and Greife, Uwe and Hix, William Raphael and Grzywacz-Jones, Kate L and KOZUB, RAYMOND L and Lingerfelt, Eric J and Livesay, Jake and Nesaraja, Caroline D and Pain, Steven D and Roberts, Luke F and Shriner, Jr., John F and Smith, Michael Scott and Thomas, Jeffrey S},
abstractNote = {We have developed a novel technique for measurements of low energy (p,alpha) reactions using heavy ion beams and a differentially-pumped windowless gas target. We applied this new approach to study the 183 keV resonance in the 17O(p,alpha)14}N reaction. We report a resonance energy (center-of-mass) of 183.5{+0.1}{-0.4} keV, a resonance strength of 1.70 +/- 0.15 meV, and set an upper limit (95\% confidence) on the total width of the state of < 0.1 keV. This resonance is important for the 17O(p,alpha)14}N reaction rate, and we find that 18F production is significantly decreased in low mass ONeMg novae but less affected in more energetic novae. We also report the first determination of the stopping power for oxygen ions in hydrogen gas near the peak of the Bragg curve (E=193 keV/u) to be (63+/-1)e-15 eV-cm2.},
doi = {10.1103/PhysRevC.75.065801},
journal = {Physical Review C},
number = ,
volume = 75,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}