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The response of a commercially available liquid scintillator to D( d,n )He 3 neutrons and to γ radiation from several standard sources has been measured. It is found that the pulse height response to γ‐ray energy is linear in the energy range 0.5 to 2.6 Mev, and that the fast neutron...
An extension of familiar techniques in magnetic measurements has been made enabling the direct measurement of magnetization cuves, M vs H , in high pulsed magnetic fields ( H ≳ 100 koe.). The sample is placed in the most spatially uniform region of the available field, inside one of a pair of...
An improved double reflection x‐ray camera is described in which both the crystal and the film rotate simultaneously. It registers x‐ray reflections from crystals in form of a line, and shows the double reflections on this line. Some examples of double reflections taken with this apparatus...
Various ways of pulsing photomultipliers are investigated. Some drawbacks inherent to the conventional methods are pointed out; a new pulsing method is suggested and experimentally studied, which avoids these inconveniences.
A 33‐cps resistance thermometer bridge, suitable for precise temperature measurements in the liquid helium range, has been designed as a completely self‐contained unit. The amplifier has a gain of 120 db, band width of 0.3 cps, and input impedance of 10 kohms. With a power dissipation of...
The extraction of particles from the nonlinear magnetic field of a synchrocyclotron by a single magnetic perturbation is studied by use of a general approximation to the magnetic field and a calculation technique closely tied to the physical process. The analysis is useful for extraction...
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