[red pencil circled below here:]
Malmfor's experiment on albedo
[red pencil circled above here]
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28 August 1951
In our intensity experiments, we measure the intensity spectrum.
therefore ((p)(v)), (No crossing (cm exponent 2) per second per sterad).
It may, however, be of more significance to measure ((1/v)(d)(N)) the spectrum of P.
i.e., in a given volume of space, what is the distribution of particles of velocity v.
More true specification of the radiation.
There is of course no difference in the extreme [relativistic?] region. But for protons below 1 Bev, there begins to be a discrimination again lower energy particles plus to v becoming smaller, so that the flux (pv) falls off more rapidly than p does.
Might even be of some interest to

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[red pencil circled below here:]
Malmfor's experiment on albedo
[red pencil circled above here]
----------------------------------------------------------------------
28 August 1951
In our intensity experiments, we measure the intensity spectrum.
therefore ((p)(v)), (No crossing (cm exponent 2) per second per sterad).
It may, however, be of more significance to measure ((1/v)(d)(N)) the spectrum of P.
i.e., in a given volume of space, what is the distribution of particles of velocity v.
More true specification of the radiation.
There is of course no difference in the extreme [relativistic?] region. But for protons below 1 Bev, there begins to be a discrimination again lower energy particles plus to v becoming smaller, so that the flux (pv) falls off more rapidly than p does.
Might even be of some interest to