Low-impedance RF system with a new type of feedback amplifier for a high-intensity synchrotron under heavy beam loading

2006 ◽  
Vol 565 (2) ◽  
pp. 358-369 ◽  
Author(s):  
Toshiyuki Oki ◽  
Yoshiro Irie ◽  
Susumu Takano
Keyword(s):  
High Intensity ◽  
Rf System ◽  
Beam Loading ◽  
Feedback Amplifier ◽  
New Type

scholarly journals Development of gated fiber detectors for laser-induced strong electromagnetic pulse environments

2021 ◽  
Vol 32 (6) ◽  
Author(s):  
Po Hu ◽  
Zhi-Guo Ma ◽  
Kai Zhao ◽  
Guo-Qiang Zhang ◽  
De-Qing Fang ◽  
...  
Keyword(s):  
High Intensity ◽  
Nuclear Physics ◽  
Nuclear Reactions ◽  
Reaction Products ◽  
Temperature Plasma ◽  
Electromagnetic Pulses ◽  
High Intensity Laser ◽  
New Type ◽  
Prototype Detector ◽  
Physics Experiments

AbstractWith the development of laser technologies, nuclear reactions can happen in high-temperature plasma environments induced by lasers and have attracted a lot of attention from different physical disciplines. However, studies on nuclear reactions in plasma are still limited by detecting technologies. This is mainly due to the fact that extremely high electromagnetic pulses (EMPs) can also be induced when high-intensity lasers hit targets to induce plasma, and then cause dysfunction of many types of traditional detectors. Therefore, new particle detecting technologies are highly needed. In this paper, we report a recently developed gated fiber detector which can be used in harsh EMP environments. In this prototype detector, scintillating photons are coupled by fiber and then transferred to a gated photomultiplier tube which is located far away from the EMP source and shielded well. With those measures, the EMPs can be avoided which may result that the device has the capability to identify a single event of nuclear reaction products generated in laser-induced plasma from noise EMP backgrounds. This new type of detector can be widely used as a time-of-flight (TOF) detector in high-intensity laser nuclear physics experiments for detecting neutrons, photons, and other charged particles.

Search for new particles

1977 ◽  
Vol 355 (1683) ◽  
pp. 493-513
Keyword(s):  
Mass Spectrum ◽  
Proton Beam ◽  
High Intensity ◽  
National Laboratory ◽  
Brookhaven National Laboratory ◽  
New Type ◽  
New Particles

We present a description of an experiment carried out at the 30GeV Alternating Gradient Synchrotron of the Brookhaven National Laboratory. The experiment used a high intensity slow extracted proton beam of between 10 10 and 2 × 10 12 protons per pulse and measured the e + e - mass spectrum from the reaction p+Be→e + e - +X. The result of this experiment shows the production of a new type of particle, J, which decays to e + e - with a width consistent with zero. Experimental searches for more new particles will also be presented.

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