Open a new 300x300 document with transparent background. Make your foreground color black and background white as shown below.
1.
Go to Filter > Render > Clouds. Then go to Filter > Pixelate > Mezzotint and choose meduim strokes.
2. Go to Filter > Blur > Motion Blur. Set angle 0 and the distance
999.
3.
Go to Edit > Transform > Rotate 90 CW. Then go to Filter > Distort > Polar Coordinates.
Choose Rectangular to Polar.

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