Search Results - "Peräjärvi, K"

Radioluminescence yield of alpha particles in air by Sand, J, Ihantola, S, Peräjärvi, K, Toivonen, H, Toivonen, J

“…Alpha particles can be detected by measuring the radioluminescence light which they induce when absorbed in air. The light is emitted in the near ultraviolet…”
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Method for the diagnosis of aged plastic radiation portal monitors by Ihantola, S., Holm, P., Jutila, H., Peräjärvi, K.

“…The light collection efficiency of plastic scintillator panels used in radiation portal monitors (RPM) declines over time. We present an efficiency calibration…”
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Reactor Decay Heat in Pu 239 : Solving the γ Discrepancy in the 4–3000-s Cooling Period by Algora, A., Jordan, D., Taín, J. L., Rubio, B., Agramunt, J., Perez-Cerdan, A. B., Molina, F., Caballero, L., Nácher, E., Krasznahorkay, A., Hunyadi, M. D., Gulyás, J., Vitéz, A., Csatlós, M., Csige, L., Äysto, J., Penttilä, H., Moore, I. D., Eronen, T., Jokinen, A., Nieminen, A., Hakala, J., Karvonen, P., Kankainen, A., Saastamoinen, A., Rissanen, J., Kessler, T., Weber, C., Ronkainen, J., Rahaman, S., Elomaa, V., Rinta-Antila, S., Hager, U., Sonoda, T., Burkard, K., Hüller, W., Batist, L., Gelletly, W., Nichols, A. L., Yoshida, T., Sonzogni, A. A., Peräjärvi, K.

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Conversion electron spectrometry of Pu isotopes with a silicon drift detector by Pommé, S., Paepen, J., Peräjärvi, K., Turunen, J., Pöllänen, R.

“…An electron spectrometry set-up was built at IRMM consisting of a vacuum chamber with a moveable source holder and windowless Peltier-cooled silicon drift…”
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High-resolution alpha spectrometry at ambient air pressure—Towards new applications by Pöllänen, R., Peräjärvi, K., Siiskonen, T., Turunen, J.

“…An approach for alpha spectrometry is introduced that allows measuring alpha spectra at ambient air pressure with energy resolution comparable to measurements…”
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In-situ alpha spectrometry from air filters at ambient air pressure by Pöllänen, R., Peräjärvi, K., Siiskonen, T., Turunen, J.

“…The effect of collimation to the alpha-particle energy spectra was investigated for two different types of air filters, when the measurements were performed at…”
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Energy loss measurement of protons in liquid water by Siiskonen, T, Kettunen, H, Peräjärvi, K, Javanainen, A, Rossi, M, Trzaska, W H, Turunen, J, Virtanen, A

“…The proton stopping power of liquid water was, for the first time, measured in the energy range 4.7-15.2 MeV. The proton energies were determined by the…”
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Characterization of a cryogenic ion guide at IGISOL by Saastamoinen, A., Moore, I.D., Ranjan, M., Dendooven, P., Penttilä, H., Peräjärvi, K., Popov, A., Äystö, J.

“…A small volume cryogenic ion guide has been characterized at the IGISOL facility, Jyväskylä, as a prototype to verify whether there are any major obstacles to…”
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A sextupole ion beam guide to improve the efficiency and beam quality at IGISOL by Karvonen, P., Moore, I.D., Sonoda, T., Kessler, T., Penttilä, H., Peräjärvi, K., Ronkanen, P., Äystö, J.

“…The laser ion source project at the IGISOL facility, Jyväskylä, has motivated the development and construction of an rf sextupole ion beam guide (SPIG) to…”
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Feasibility of conversion electron spectrometry using a Peltier-cooled silicon drift detector by Peräjärvi, K., Turunen, J., Ihantola, S., Kämäräinen, V., Pommé, S., Pöllänen, R., Siiskonen, T., Sipilä, H., Toivonen, H.

“…A Peltier-cooled silicon drift detector was successfully applied for conversion electron spectrometry. The energy resolution of the detector for 45 keV…”
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A study of on-line gas cell processes at IGISOL by Moore, I.D., Kessler, T., Sonoda, T., Kudryavstev, Y., Peräjärvi, K., Popov, A., Wendt, K.D.A., Äystö, J.

“…The laser ion source at the IGISOL facility, Jyväskylä, has been used to study the effects of the passage of a primary beam through an ion guide via the…”
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Off-line studies of the laser ionization of yttrium at the IGISOL facility by Kessler, T., Moore, I.D., Kudryavtsev, Y., Peräjärvi, K., Popov, A., Ronkanen, P., Sonoda, T., Tordoff, B., Wendt, K.D.A., Äystö, J.

“…A laser ion source is under development at the IGISOL facility, Jyväskylä, in order to address deficiencies in the ion guide technique. The key elements of…”
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Ultra-high resolution mass separator—Application to detection of nuclear weapons tests by Peräjärvi, K., Eronen, T., Elomaa, V.-V., Hakala, J., Jokinen, A., Kettunen, H., Kolhinen, V.S., Laitinen, M., Moore, I.D., Penttilä, H., Rissanen, J., Saastamoinen, A., Toivonen, H., Turunen, J., Äystö, J.

“…A Penning trap-based purification process having a resolution of about 1 ppm is reported. In this context, we present for the first time a production method…”
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Determining isotopic distributions of fission products with a Penning trap by Penttilä, H., Karvonen, P., Eronen, T., Elomaa, V. -V., Hager, U., Hakala, J., Jokinen, A., Kankainen, A., Moore, I. D., Peräjärvi, K., Rahaman, S., Rinta-Antila, S., Rubchenya, V., Saastamoinen, A., Sonoda, T., Äystö, J.

“…A novel method to determine independent yields in particle-induced fission employing the ion guide technique and ion counting after a Penning trap has been…”
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Mass measurements of neutron-deficient nuclides close to A = 80 with a Penning trap by Kankainen, A., Batist, L., Eliseev, S. A., Elomaa, V. -V., Eronen, T., Hager, U., Hakala, J., Jokinen, A., Moore, I., Novikov, Yu. N., Penttilä, H., Peräjärvi, K., Popov, A. V., Rahaman, S., Rinta-Antila, S., Ronkanen, P., Saastamoinen, A., Seliverstov, D. M., Sonoda, T., Vorobjev, G. K., Äystö, J.

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Design of an air sampler for a small unmanned aerial vehicle by Peräjärvi, K., Lehtinen, J., Pöllänen, R., Toivonen, H.

“…In the aftermath of a nuclear accident or malevolent act, it is of paramount importance to have the capability to monitor airborne radioactive substances by…”
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Cryogenic helium as stopping medium for high-energy ions by Purushothaman, S., Dendooven, P., Moore, I., Penttilä, H., Ronkainen, J., Saastamoinen, A., Äystö, J., Peräjärvi, K., Takahashi, N., Gloos, K.

“…We have investigated the survival and transport efficiency of 219Rn ions emitted by a 223Ra source in high-density cryogenic helium gas, with ionisation of the…”
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Comparison of gamma-ray coincidence and low-background gamma-ray singles spectrometry by Konki, J., Greenlees, P.T., Jakobsson, U., Jones, P., Julin, R., Juutinen, S., Ketelhut, S., Hauschild, K., Kontro, R., Leppänen, A.-P., Lopez-Martens, A., Mattila, A., Nieminen, P., Nyman, M., Peräjärvi, K., Peura, P., Rahkila, P., Ruotsalainen, P., Sarén, J., Scholey, C., Sorri, J., Toivonen, H., Turunen, J., Uusitalo, J.

“…Aerosol samples have been studied under different background conditions using gamma-ray coincidence and low-background gamma-ray singles spectrometric…”
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Production of neutron deficient rare isotope beams at IGISOL; on-line and off-line studies by Huikari, J., Dendooven, P., Jokinen, A., Nieminen, A., Penttilä, H., Peräjärvi, K., Popov, A., Rinta-Antila, S., Äystö, J.

“…This article reports on recent on-line yield measurements employing the light-ion and heavy-ion reaction-based ion guide systems and new results on α-recoil…”
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Upgrade and yields of the IGISOL facility by Karvonen, P., Penttilä, H., Äystö, J., Billowes, J., Campbell, P., Elomaa, V-V., Hager, U., Hakala, J., Jokinen, A., Kessler, T., Kankainen, A., Moore, I.D., Peräjärvi, K., Rahaman, S., Rinta-Antila, S., Rissanen, J., Ronkainen, J., Saastamoinen, A., Sonoda, T., Tordoff, B., Weber, C.

“…The front end of the Jyväskylä IGISOL facility was upgraded in 2003 by increasing its pumping capacity and by improving the radiation shielding. In late 2005,…”
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