Certainly! Let's consider an alternative nuclear reaction to produce oxygen (O2) without involving radioactive emissions:

1. Start with a source of tritium (T), which can be obtained from certain nuclear reactions or produced in specialized facilities.

2. Initiate a nuclear fusion reaction between tritium (T) and deuterium (D) to produce a helium-4 (He-4) nucleus and a neutron (n):

T + D -> He-4 + n

3. Capture the neutron (n) produced in step 2 and react it with another tritium (T) nucleus to form a helium-4 (He-4) nucleus and a proton (H+):

n + T -> He-4 + H+

4. Combine the helium-4 (He-4) nucleus and the proton (H+) to form beryllium-5 (Be-5):

He-4 + H+ -> Be-5

5. Allow the beryllium-5 (Be-5) to undergo beta decay, transforming into lithium-5 (Li-5) and emitting an electron (e-) and an antineutrino (ν̄):

Be-5 -> Li-5 + e- + ν̄

6. Capture the emitted electron (e-) and react it with a proton (H+) to produce a neutron (n):

e- + H+ -> n

7. Combine the neutron (n) with another tritium (T) nucleus to generate a helium-4 (He-4) nucleus and a proton (H+):

n + T -> He-4 + H+

8. React the proton (H+) with another helium-4 (He-4) nucleus to produce oxygen-16 (O-16):

H+ + He-4 -> O-16

By following this alternative series of nuclear reactions, oxygen-16 (O-16) can be produced without involving radioactive emissions.
However, it's important to note that this process is still theoretical and not currently achievable using practical methods.