Wide‐Range Multi‐Input Pulse Height Recording System

Alcator C - Mod Soft X - Ray Pulse Height Analysis System

A pulse height analysis (PHA) system has been installed on the Alcator C-Mod magnetic confinement fusion experiment. The PHA utilizes a Si(Li) detector to measure soft X-rays in the 1-30 keV range with an energy resolution on the order of 100eV. A FASTComtec MCA-3 multichannel analyzer allows integration times of ims while the PHA supports counting rates of up to 80kHz. The thermal electron tem...

Transureteral Phonocatheter Recording of the Renal Arterial Pulse.

Characterization of auscultatory gaps with wideband external pulse recording.

Three types of auscultatory gaps, called G1, G2, and G3, that occur during blood pressure measurement have been identified by using wideband external pulse recording. We have previously shown that the wideband external pulse recorded during cuff deflation can be separated into three components (K1, K2, and K3), one of which (K2) is closely related to the Korotkoff sound. G1 occurs with cuff pre...

Pulse reverse plating for uniform nickel height in zone plates

Nickel soft x-ray zone plates are fabricated by through-mask electroplating. The authors report on how a uniform nickel thickness can be obtained over the entire zone plate using pulse and pulse reverse plating. If the plating is carried out at a constant current the nickel thickness has been observed to decrease with radius. This results in lower outer zones and reduced diffraction efficiency ...

A Monte Carlo Code for Simulation of Pulse Pile-up Spectral Distortion in Pulse-height Measurement

The Monte Carlo simulation code CEARPPU has been improved to obtain better accuracy for predicting pulse-height spectra measured at high counting rates. Experimental verification was carried out by measuring an Fe-55 spectrum with a Si(Li) X-ray spectrometer. Based on the spectrum measured at low counting rate, which is considered to be the “true” spectrum with no pulse pile-up distortion, the ...