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Hello Gamma Enthousiasts

Posted: 18 May 2015, 04:09
by Nephrondoctor
Hello Gamma Enthousiasts,
My name is Alfred Apperloo, I live in the Netherlands , Europe. Gamma spectrometry is one of my hobbies. My profession is kidney specialist (acute and chronic renal failure, kidney transplantation, nephrotic syndrome, ICU, hypertension etc.) In the past, I used 125 Iodine and 131 Iodine isotopes intravenously to accurately study renal perfusion and glomerular filtration rate in patients with renal diseases and healthy volunteers. I titrated their blood and urine samples myself to yield maximal accuracy.
This sparked my interest for radioactivity. A few years ago I crafted my first gamma spectrometry setup. I used my ThermoScientific Electra rate meter with a Bicron scintillator. I connected a simple capacitor to the HV output of the Electra with a T-piece and connected this signal to the PC soundcard with PRA running. Resolution and linearity were mediocre but I was agitated that it appeared possible to obtain a gamma spectrum with only very simple equipment. A few month later I was able to register far better spectra using a 2x2 inch NaI probe from Scionix combined with GammaSpectacular 1100A and an external USB soundcard adapter, E-MU 0204. Shortly thereafter I got the GG2012, a low budget portable MCA, with outstanding performance in combination with the Scionix probe.

Re: Hello Gamma Enthousiasts

Posted: 18 May 2015, 06:31
by luuk
Hallo Alfred,
Nice to see you here to.
Any news about your Chinese crystal? did you buy it yet?
Groet,
Luuk

Re: Hello Gamma Enthousiasts

Posted: 18 May 2015, 07:32
by Sesselmann
Alfred,

Welcome to the new forum, and thanks for the nice introduction. I never actually knew what kind of work you did, sounds very interesting. Hope to hear more about the GG2012 and how it compares with the sound card method.

Re: Hello Gamma Enthousiasts

Posted: 22 May 2015, 03:14
by Nephrondoctor
luuk wrote:Hallo Alfred,
Nice to see you here to.
Any news about your Chinese crystal? did you buy it yet?
Groet,
Luuk
Hi Luuk,

Still hesitating. I did not find a good PMT for it yet and price remains rather high.
Best regards, Alfred