Information on mass chains and nuclides

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GENERAL: See also Table 17.1 [Table of Energy Levels] (in PDF or PS).

Mass of ¹⁷N: From the Q₀ of the ¹¹B(⁷Li, p)¹⁷N reaction and the Wapstra masses (1955WA1A) for ¹¹B, ⁷Li and ¹H, the mass excess (M - A) of ¹⁷N is 12.93 ± 0.06 MeV.

1. 17N(β-)17O* → 16O + n

Qm = 4.57

The decay is complex. See ¹⁷O.

2. 11B(7Li, p)17N	Qm = 8.38
	Q0 = 8.38 ± 0.06 (C. Littlejohn, private communication).

At E(⁷Li) = 2 MeV, proton groups are observed corresponding to the ground state of ¹⁷N and to excited states at 1.32 ± 0.08, 1.89 ± 0.08, 2.50 ± 0.08, 2.82 ± 0.08, 3.27 ± 0.09, 3.57 ± 0.09, 3.86 ± 0.09, and 4.18 ± 0.09 MeV. The data on the four highest levels are preliminary (C. Littlejohn, private communication).

3. 14C(α, p)17N

Qm = -9.75

See ¹⁸O.

4. 15N(t, p)17N

Qm = -0.15

See (1956SH1A).

5. 17O(n, p)17N

Qm = -7.93

See (1956FA1C).

6. 18O(γ, p)17N

Qm = -15.99

See (1955RE1C).

7. 18O(n, d)17N

Qm = -13.77

Not reported.

8. 18O(d, 3He)17N

Qm = -10.50

Not reported.

9. 18O(t, α)17N

Qm = 3.82

See (1956SH1A).

10. 19F(n, 3He)17N

Qm = -16.24

Not reported.

11. Photospallation reactions.

A number of spallation reactions yielding ¹⁷N have been observed by (1955RE1C) and (1955CH1C). See also (1958BA60).