Operation Nougat New designs would be further developed in atmospheric testing during Operation Dominic I and II.

Operation Dominic I and II would follow Operation Nougat, with some testing overlap. Operation Hardtack II preceded Nougat and the testing moratorium.

Tests

Antler

Antler was the first shot fired as part of the resumption of nuclear testing by the United States. Fired 15 September 1961, containment was immediately lost when the shot vented via the tunnel portal, destroying much of the test data. This was a recurring problem for tunnel tests of the era. The problem was thought to be caused by water above the blast zone draining into the explosion cavity where it was vaporised and escaped as steam.

Shrew

Shrew was the first Los Alamos test after the resumption of testing. The device was buried to a depth of in a canister long. The shaft was wide, lined with steel, and backfilled with sand to above the canister and concrete to the surface. Post-test, some radioactivity was detected by sampling aircraft.

British tests

Some accounts include the first British nuclear weapons test at the Nevada Test Site, shot Pampas, as part of Nougat. See British nuclear testing in the United States for more details.

Full list of tests

{| class="wikitable sortable"

|+ United States' Nougat series tests and detonations

|-

!style="background:#ffdead;" | Name

!style="background:#efefef;" | Date time (UT)

!style="background:#ffdead;" | Local time zone

!style="background:#efefef;" | Location

!style="background:#ffdead;" | Elevation + height

!style="background:#efefef;" | Delivery <br />Purpose

!style="background:#efefef;" | Device

!style="background:#ffdead;" | Yield

!style="background:#efefef;" class="unsortable" | Fallout

!style="background:#ffdead;" class="unsortable" | References

!style="background:#efefef;" class="unsortable" | Notes

|-

! Antler

| 17:00:00.12

| style="text-align:center;" | PST (-8&nbsp;hrs)<br /> || NTS Area U12e.03a

| -

| tunnel,<br />weapons development

| W-45

| style="text-align:center;" |

| Venting detected off site,

|

| style="text-align:center;" |

| Venting detected on site, less than

|