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USNDP

17N (1982AJ01)


(See Energy Level Diagrams for 17N)

GENERAL: See (1977AJ02) and Table 17.1 [Table of Energy Levels] (in PDF or PS).

Theoretical papers and reviews:(1978KR19, 1979AL22, 1979BE1H, 1979BO22, 1980MI1G, 1981OS04).

Experimental papers:(1977AR06, 1977BA44, 1978GE1C, 1978KO01, 1980OLZW, 1981FR1D).

1. (a) 17N(β-)17O* → 16O + n Qm = 4.536
(b) 17N(β-)17O Qm = 8.680

The half-life of 17N is 4.173 ± 0.004 sec (1976OH05, 1972AL42). See also (1971AJ02). The decay is principally [see Table 17.2 (in PDF or PS)] to the neutron unbound states 17O*(4.55, 5.38, 5.94) [Jπ = 3/2-, 3/2-, 1/2-]. The nature of the decay is in agreement with Jπ = 1/2- for 17Ng.s. (1973PO11, 1976AL02). For a comparison of the 17N and 17Ne decays see Table 17.3 (in PDF or PS) (1976AL02, 1976OH05).

2. 9Be(9Be, p)17N Qm = 7.537


See (1977AJ02) for several other reactions leading to 17N.

Angular distributions are reported at E(9Be) = 5.0 MeV to 17N*(0, 1.37, 2.53) (1977YO02).

3. 11B(7Li, p)17N Qm = 8.417

Observed proton groups and γ-rays are displayed in Table 17.4 (in PDF or PS). Table 17.5 (in PDF or PS) shows branching ratio and lifetime measurements (1974RO27, 1974RO28).

4. 15N(t, p)17N Qm = -0.108

Observed proton groups are displayed in Table 17.6 (in PDF or PS). See also (1971AJ02).

5. 15N(α, 2p)17N Qm = -19.922

At Eα = 65 MeV 17N*(3.13, 3.63) are the only states of 17N which are strongly populated (1978JA10).

6. 15N(13C, 11C)17N Qm = -15.293

At E(13C) = 105 MeV 17N*(3.13, 3.63) are strongly populated (1979RA10).

7. 17O(n, p)17N Qm = -7.898

See 18O in (1978AJ03).

8. 18O(γ, p)17N Qm = -15.942

See (1976BA41) and 18O in (1983AJ01).

9. 18O(d, 3He)17N Qm = -10.449

Observed groups of 3He ions are displayed in Table 17.4 (in PDF or PS): the 1/2- ground state contains the full 1p1/2 strength. The strength of all other observed l = 1 transitions is assumed to originate from pickup from the 1p3/2 shell (1977MA10). Analyzing powers have been obtained at Ed-bar = 52 MeV to 17N*(0, 1.37, 1.85, 2.53, 5.51, 6.99) (1981MA14).

10. 18O(t, α)17N Qm = 3.872

At Et = 3.5 MeV (1976GU14) have studied α - γ angular correlations and γ-ray branching ratios for the first six excited states of 17N: see Tables 17.4 (in PDF or PS) and 17.5 (in PDF or PS). See also (1971AJ02).