Experimental results

Explanations

Comments

As part of the PeTa model

CL and SL existanse

The emission of PeTa radiation

Prerequisites: supersaturated vapor and quantity of particles in the cloud ≥ 105

SBSL emission has light pulses of

duration ~5 × 10−11 s

Fully compliant with the PeTa model

Quantity of particles in the cloud N has to be N ≥ 105, t1 is equal to ~10−12 s

Flash occurs ~10−7 s before accomplishment of the minimum radius of the bubble

Does not contradict the PeTa model

No explanation in any other model

Both the width in the red and the ultraviolet spectral range are identical

Does not contradict the PeTa model

No explanation in any other model

Bubble radius R0 is typically around

(5 - 80) μm

Compliant with the PeTa model

There is some, but not too much, dissolved gas. Degasing on ~20% from saturation.

Compliant with the PeTa model

Frequencies of liquid perturbations: 1 Hz, 7.92 kHz, 13.28 kHz, 16 kHz, 17.8 kHz, 23.5 kHz, 24 kHz, 500 kHz, 1 HHz; The corresponding durations of one cycle 1s - 1 × 10−6 s

These values are within the PeTa model

Calibrated measurements of bubble brightness in SBSL show that each flash contains about

Ep ≈ 1 × 10−12 J energy

Our estimates give about

Ep ≈ (1 × 10−10 − 1 × 10−12) J of energy

Energy absorption by the water and the quarts have to be taken into account

MBSL had a power of WSL = (1.6 ± 0.2) × 10−8 W from a volume of liquid ~ 6 × 10−5 m3, exited with 1W of ultrasonic energy at 24 kHz

It corresponds to the PeTa model estimation for SBSL: WSBSL ≈ (10−7 - 10−4) W without taking into account any absorption

The absorption of radiation by liquid and glass or quartz must be taken into account. Number and sizes of emitting bubbles are unknown.

Outside the PeTa model

Emission peaks on the background of the main range

Outside the PeTa model

It is likely that their presence is due to the excitation of gases and other substances dissolved in the liquid; their excitation occurs under the influence of shock waves occurring in the liquid

Influence of gases and other substances dissolved in the liquid on the SL intensity

Outside the PeTa model

It is likely that they influence the number of particls that are sufficient for emission of the PeTa impulse