Masses of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Pd</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>98</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Pd</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>99</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>, and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Pd</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>100</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>

C. E. Thorn; W. F. Piel, Jr; M. J. LeVine; P. D. Bond; A. Gallman

doi:10.1103/PhysRevC.25.331

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Masses of ${}^{98}{Pd}$ , ${}^{99}{Pd}$ , and ${}^{100}{Pd}$

C. E. Thorn, W. F. Piel, Jr.^*, M. J. LeVine, P. D. Bond, and A. Gallman^†

Physics Department, Brookhaven National Laboratory, Upton, New York 11973

^*Present address: Physics Department, State University of New York, Stony Brook, New York 11794.
^†Permanent address: Centre de Recherches Nucleaires, Strasbourg, France.

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Phys. Rev. C 25, 331 – Published 1 January, 1982

DOI: https://doi.org/10.1103/PhysRevC.25.331

Abstract

The $Q$ values of the reactions ${}^{96}{Ru}$ ( ${}^{16}O$ , ${}^{14 - 12}C$ ) ${}^{98 - 100}{Pd}$ have been simultaneously measured using a quadrupole-dipole-dipole-dipole magnetic spectrometer. The result for the ( ${}^{16}O$ , ${}^{14}C$ ) reaction is $Q = - 12.529 \pm 0.020$ MeV, from which we deduce the first measured mass excess of ${}^{98}{Pd}$ : -81.303±0.022 MeV. The $Q$ value for the ( ${}^{16}O$ , ${}^{13}C$ ) reaction is determined to be -11.723±0.020 MeV, from which we obtain -82.214±0.022 MeV for the mass excess of ${}^{99}{Pd}$ . This value is the first direct measurement of the mass of ${}^{99}{Pd}$ , and disagrees with a previously tabulated value. For the ( ${}^{16}O$ , ${}^{12}C$ ) reaction, $Q = - 5.599 \pm 0.026$ MeV, which leads to a mass excess for ${}^{100}{Pd}$ of -85.213±0.027 MeV, in agreement with a previous measurement using light ions. A mass excess of -87.138±0.022 MeV for ${}^{106}{Cd}$ , measured with the ${}^{104}{Pd}$ ( ${}^{16}O$ , ${}^{14}C$ ) reaction, is also in excellent agreement with a tabulated value.

NUCLEAR REACTIONS ${}^{16}O$ + ${}^{96}{Ru}$ , $E = 70$ MeV; measured $E_{{}^{14}C}$ , $E_{{}^{13}C}$ , $E_{{}^{12}C}$ ; ${}^{98}{Pd}$ , ${}^{99}{Pd}$ , ${}^{100}{Pd}$ deduced level, $Q$ , masses; QDDD magnetic spectrometer.

References (7)

A. H. Wapstra and K. Bos, At. Data Nucl. Data Tables 19, 177 (1977)
W. F. Piel, Jr. and G. Scharff-Goldhaber, Bull. Am. Phys. Soc. 23, 555 (1978) C. E. Thorn, P. D. Bond, M. J. LeVine, W. F. Piel, Jr., and A. Gallmann, ibid. 23, 72 (1978)
P. Debenham, W. R. Falk, and M. Canty, Can J. Phys. 52, 1416 (1974)
L. C. Northcliffe and R. F. Schilling, Nucl. Data Tables 7, 268 (1970)
M. J. LeVine and C. E. Thorn, computer codes CALIB, GETCAL, and QPLOT (unpublished)
W. F. Piel, Jr., G. Scharff-Goldhaber, A. H. Lumpkin, Y. K. Lee, and D. C. Stromswold, Phys. Rev. C 23, 708 (1981) H. I. Hayakawa, I. Hyman, and J. K. P. Lee, 22, 247 (1980)
H. I. HayakawaI. HymanJ. K. P. LeeAt. Data Nucl. Data Tables 17, 511 (1976)

[c1] A. H. Wapstra and K. Bos, At. Data Nucl. Data Tables 19, 177 (1977)

[c2] W. F. Piel, Jr. and G. Scharff-Goldhaber, Bull. Am. Phys. Soc. 23, 555 (1978) C. E. Thorn, P. D. Bond, M. J. LeVine, W. F. Piel, Jr., and A. Gallmann, ibid. 23, 72 (1978)

[c3] P. Debenham, W. R. Falk, and M. Canty, Can J. Phys. 52, 1416 (1974)

[c4] L. C. Northcliffe and R. F. Schilling, Nucl. Data Tables 7, 268 (1970)

[c5] M. J. LeVine and C. E. Thorn, computer codes CALIB, GETCAL, and QPLOT (unpublished)

[c6] W. F. Piel, Jr., G. Scharff-Goldhaber, A. H. Lumpkin, Y. K. Lee, and D. C. Stromswold, Phys. Rev. C 23, 708 (1981) H. I. Hayakawa, I. Hyman, and J. K. P. Lee, 22, 247 (1980)

[c7] H. I. HayakawaI. HymanJ. K. P. LeeAt. Data Nucl. Data Tables 17, 511 (1976)

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Masses of ${}^{98}{Pd}$ , ${}^{99}{Pd}$ , and ${}^{100}{Pd}$

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Masses of Pd98, Pd99, and Pd100

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Masses of ${}^{98}{Pd}$ , ${}^{99}{Pd}$ , and ${}^{100}{Pd}$