Comparison of the Monte Carlo ion cyclotron heating model with the full-wave linear absorption model

2009 ◽  
Vol 16 (5) ◽  
pp. 052513 ◽  
Author(s):  
M. Choi ◽  
V. S. Chan ◽  
L. A. Berry ◽  
E. F. Jaeger ◽  
D. Green ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Absorption Model ◽  
Linear Absorption ◽  
Full Wave ◽  
Ion Cyclotron ◽  
Heating Model

Comment on “Invalidation of the Intracavity Opto-galvanic Method for Radiocarbon Detection” by Cantwell G Carson, Martin Stute, Yinghuang Ji, Roseline Polle, Arthur Reboul, and Klaus S Lackner

Radiocarbon ◽  
2016 ◽  
Vol 58 (1) ◽  
pp. 227-230 ◽  
Author(s):  
Daniel E Murnick
Keyword(s):  
Narrow Band ◽  
Single Mode ◽  
Laser Wavelength ◽  
Absorption Model ◽  
Linear Absorption ◽  
Broadband Absorption ◽  
Laser Gain ◽  
Cell Discharge ◽  
Optogalvanic Spectroscopy ◽  
Gain Profile

AbstractCarson et al. (2016) have measured the optogalvanic response of an intracavity cell discharge containing carbon dioxide enriched in radiocarbon in a 14CO2 laser, and compared same to an unenriched sample. The measurement was carried out by modulating the laser wavelength while slowly tuning through the laser gain profile. The results of the measurements are claimed to “invalidate the optogalvanic method for radiocarbon detection.” A broadband linear absorption model is presented in support of this hypothesis. In fact, the experimental design was such as to minimize any possibility for 14C detection, and the model presented is not relevant to their experiment. Crucial control measurements were not carried out and the model used did not differentiate between broadband absorption spectroscopy and intracavity optogalvanic spectroscopy (ICOGS) with a narrow-band single-mode CO2 laser.

scholarly journals Simulation of the DIII-D Beam Ion Heating Experiment Using A Monte-Carlo Particle Code Combined With a Full Wave Code

2009 ◽  
Author(s):  
M. Choi ◽  
V. S. Chan ◽  
D. Green ◽  
W. W. Heidbrink ◽  
E. F. Jaeger ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Ion Heating ◽  
Full Wave

A NEW MIXED MODE FULL-WAVE RECTIFIER REALIZATION WITH CURRENT DIFFERENCING TRANSCONDUCTANCE AMPLIFIER

2014 ◽  
Vol 23 (07) ◽  
pp. 1450101 ◽  
Author(s):  
FIRAT KAÇAR ◽  
MUHAMMED EMIN BAŞAK
Keyword(s):  
Monte Carlo ◽  
Mixed Mode ◽  
Zero Crossing ◽  
Mos Transistor ◽  
Full Wave ◽  
Transconductance Amplifier ◽  
Current Voltage ◽  
Simulation Results ◽  
Current Differencing Transconductance Amplifier ◽  
A Current

In this paper, a new mixed mode full-wave rectifier which consists of a current differencing transconductance amplifier (CDTA), resistor and two complementary MOS transistor is presented. The proposed circuit is called as mixed mode because it can be used as current-, voltage-, transimpedance- and transconductance-mode rectifier depending on how the resistor is connected to the input or output of the circuit. The presented circuit has an appropriate zero crossing performance, linearity, low component count, and can be adapted to modern IC technologies. It is also suitable for monolithic integrated implementation. LTSPICE simulations with 0.18 μm CMOS model obtained through TMSC are included to verify the workability of the proposed circuit. We also performed noise and Monte Carlo analyses. Various simulation results are presented to show the effectiveness of the proposed circuit.

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