Delta rays appear as branches in the main track of a cloud chamber.

Something to do with delta rays and radiation.

This includes delta rays and epsilon rays, which however have been given real-world meanings.

The photons and some of the higher energy electrons, called delta rays, carry energy far from the particle track before depositing it as ionization or excitation.

This approximation neglects the directional distribution of secondary radiation and the non-linear path of delta rays, but simplifies analytic evaluation.

He had concluded that he had discovered delta rays being emitted by the earth, but in fact he had been detecting X-rays scattered by the ground.

Many studies focus upon the energy transferred in the vicinity of the primary particle track, and exclude interactions that produce delta rays with energies larger than a certain value Δ.

The secondary electrons produced during the process of ionization by the primary charged particle are conventionally called delta rays, if their energy is large enough so that they themselves can ionize.

He had watched enough tapes of battles to know that only delta rays left marks like that: Kethas had been burned by either an unshielded warpdrive, or Romulan lasers.

Pike attempts it, in spite of what future-Kirk and future-Spock say, causing him to be injured by the Delta rays and subsequently transition to a life in the wheelchair and its light communication device.

Energy deposition by HZE ions is highly heterogeneous with a localized contribution along the trajectory of each particle and lateral diffusion of energetic electrons (delta rays) that are many microns from the ions path.

Just as there had never been any question in Pike's mind whether or not he would have rescued the cadets from the delta rays, so there was no question in Spock's mind about what he was willing to do for Pike.

When the ship arrives, the commander of the starbase, Commodore Mendez, states that communication with Pike is impossible, since he has been severely burned and paralyzed by exposure to delta rays during a maintenance accident aboard a J-class training vessel.

If that was the case, there could be a serious hazard in the making--Pike had once seen a crewman devastated by leaking delta rays from a warped baffle plate and had no intention of such an unpleasant fate befalling any member of his crew.

A barrage of delta rays, two years ago, had taken out half of one ship's population and exposed the remainder to radiation that would, no doubt, shorten their lives, make their deaths more painful, and reap a deadly harvest among any children they dared to have.

At the end of each ionizing particle traces, there always appears a concentrated formation of dense clouds called "delta rays", where the particle movements become randomized and deposit higher and higher kinetic energy per unit length until all the particle energy is exhausted.

Pike had saved numerous lives, hauling one young officer after another from the delta rays inundating the affected area, but in the process had condemned himself to life in an automated wheelchair, unable to do anything but move slowly about and signal "yes" and "no" in response to questions.

Until he overheard the doctors, making the mistake of thinking his hearing was as affected as his other senses (it was not; if anything, it had grown more acute since the accident), discussing his case in the hall outside, and he'd learned exactly what they expected the delta rays would ultimately do to him.

The almost unimaginably intense magnetic fields created by such dead, ultradense stars actually slow their rotation, creating surface "starquakes" that release potent showers of intense radiation, ranging from gamma rays to delta rays to berthold radiation all the way down to the less exotic, if no less spectacular, ion storms.