High-pressure He-Cd and He-Zn lasers pumped by a hard ionizer

Study of He Rabi nutations by optically-pumped cesium magnetometers

We describe a method for recording the Rabi nutation of nuclear spin polarized He by optically pumped cesium magnetometers. The measurement is performed by detecting the time-dependent magnetic field produced by the He magnetization. The observed signals are compared to theoretical models and the results are used to precisely trace the evolution of the magnetization. This procedure represents a...

Autoionization of He and Autodetachment of He- following Bombardment by H+, H2+, He+, and He Atoms

Stabilization of internal-mirror He-Ne lasers.

Simultaneous frequency and amplitude stabilization of a commercial internal-mirror He-Ne laser by a new simple method is reported. In this method, the back beam intensity of one polarization of the orthogonally polarized modes is fed back as a heater current to control the cavity length of the laser. The relative frequency stability and amplitude stability achieved are, respectively, +2.5 X 10-...

On the calibration of a vectorial 4 He pumped magnetometer

1Laboratoire d’Electronique et de Technique d’Instrumentation, Commissariat à l’énergie atomique, referred to later on as CEA/LETI Grenoble 17 rue des martyrs 38054 Grenoble cedex 9, France 2International Institute of Earthquake Prediction Theory and Mathematical Geophysics 79, b2, Warshavskoe shosse 113556 Moscow, Russia 3Institut de Physique du Globe de Paris, 4, Place Jussieu, 75252, Paris, ...

He Structure from Coherent Hard Exclusive Processes

Hard exclusive processes, such as deep electroproduction of photons and mesons off nuclear targets, could give access, in the coherent channel, to nuclear generalized parton distributions (GPDs). Here, a realistic microscopic calculation of the unpolarized quark GPD H3 q of the 3He nucleus is reviewed. In Impulse Approximation, H3 q is obtained as a convolution between the GPD of the internal n...