The phrase "a brief half" is not standard in written English and may cause confusion.
It could be used in contexts where you are referring to a short duration or a small portion of something that is typically divided into halves, but it is not a common expression.
Example: "We only have a brief half to discuss the main points before the meeting starts."
Alternatives: "a short interval" or "a quick moment".
The classic chip-shop chip has a brief half-life before becoming unpleasantly cold, oily, almost slug-like.
The woman briskly bounds toward a door, making a brief half-turn and gesturing to the police officer just behind her.
Some senior SNP figures who have watched the demise of the Lib Dems fear any extended association with Labour could backfire, thus advocating that any deal should have a brief half-life.
The radioactive substance used, polonium-210, has only a brief half-life of 138.4 days so traces detected eight years after he was supposedly poisoned would be difficult to find.
Previous studies indicated that RTP801 protein has a brief half-life, between 2 and 5 min.
In the city where it happened, though, it seemed to have a fairly brief half-life, having nothing to do with terrorism and competing as it did with a crowded summer news cycle that has also included some random stabbings, two horrific auto crashes and a postal worker injured in the subway by a man wielding two stolen power saws — stories that also seemed to play bigger outside the city than in it.
37 Galantamine-IR is absorbed rapidly from the gastrointestinal tract and has a relatively brief half-life of approximately 7 hours.
You have to be relatively brief — half an hour is the limit.
At a press briefing half an hour later, Secretary of Defense Donald Rumsfeld declared that the weapons used in this campaign did their job with pinpoint accuracy.
The presence of myoglobinuria was considered desirable but not mandatory for the diagnosis of rhabdomyolysis in our study cohort since myoglobin released after muscle injury circulates for a brief period (half life – 2 to 3 hours) and is rapidly excreted by the kidney [1] making estimation of serum or urine myoglobin a less sensitive test for the diagnosis of rhabdomyolysis.
