Pengaruh Partisipasi Anggota sebagai Pemilik dan Anggota sebagai Pengguna terhadap Perolehan Sisa Hasil USAha (Shu) Bagi Anggota pada Koperasi Pegawai Republik Indonesia (Kpri) Kantor Bupati Kampar

The aims of the study is to know the level of participation of members either as owner or as a user and effect to the acquisition (SHU) for members of KPRI Kantor Bupati Kampar. The subject of this study is the members of KPRI Kantor Bupati Kampar, amount 84 people, the samples are taken by using proportional sampling. The data are primary data and secondary with data collection by using questionaires and documentation. The technique of analisis data I used is Multiple Linear Regression Anaysis Processed through SPSS 21 for Windows and Microsoft Excel program. Based on the analysis concluded that the significant value on the table annova obtained F count amounted to 0,000 critical values less than of 0,05. Then obtained 0,000 < 0,05, and these result show that participation of members as owner and members as a user together affect the acquisition (SHU)of KPRI Kantor Bupati Kampar. while partially variable participation of members as owner has a significant level amounted to 0,026 < 0,05 the results show that the participation of members as owner has effect on SHU . The variable participation as a user has a signigicant level amounted to 0,000 < 0,05 the results show that the participation of members as a user has effect on SHU. Judging from R square 0f 0,343 this show that the effect of an independent variable on the dependent variable amounted to 34,3% while the rest 65,7% influenced by other variables not examined

Position-sensitive ion detection in precision Penning trap mass spectrometry

A commercial, position-sensitive ion detector was used for the first time for the time-of-flight ion-cyclotron resonance detection technique in Penning trap mass spectrometry. In this work, the characteristics of the detector and its implementation in a Penning trap mass spectrometer will be presented. In addition, simulations and experimental studies concerning the observation of ions ejected from a Penning trap are described. This will allow for a precise monitoring of the state of ion motion in the trap.Comment: 20 pages, 13 figure

A broad-band FT-ICR Penning trap system for KATRIN

The KArlsruhe TRItium Neutrino experiment KATRIN aims at improving the upper limit of the mass of the electron antineutrino to about 0.2 eV (90% c.l.) by investigating the beta-decay of tritium gas molecules T(2) -> ((3)HeT)(+) + e(-) + (nu) over bar (e). The experiment is currently under construction to start first data taking in 2012. One source of systematic uncertainties in the KATRIN experiment is the formation of ion clusters when tritium decays and decay products interact with residual tritium molecules. It is essential to monitor the abundances of these clusters since they have different final state energies than tritium ions. For this purpose, a prototype of a cylindrical Penning trap has been constructed and tested at the Max-Planck-Institute for Nuclear Physics in Heidelberg, which will be installed in the KATRIN beam line. This system employs the technique of Fourier-Transform Ion-Cyclotron-Resonance in order to measure the abundances of the different stored ion species.The two Penning traps have been financed by the BMBF (grant to the University of Karlsruhe) under project codes 05CK5VKA/5 and 05A08VK2. The support of the Deutsche Forschungsgemeinschaft for the development of the FT-ICR detection technique for precision mass spectrometry under contract number BL981-2-1 is gratefully acknowledged. We thank A. Gotsova for her help during tests in Mainz and Prof. C. Weinheimer for useful discussions related to this project. We warmly thank the LPC trappers group for providing the attenuation grids. D. Rodríguez is a Juan de la Cierva fellow and acknowledges support from the Spanish Ministry of Science and Innovation through the José Castillejo program to provide funding for a 5-month stay at the MPI-K. Sz. Nagy acknowledges support from the Alliance Program of the Helmholtz Association EMMI. S. Lukic acknowledges support by the Transregional Collaborative Research Centre No. 27 “Neutrinos and Beyond”, funded by Deutsche Forschungsgemeinschaft

TITAN's Digital RFQ Ion Beam Cooler and Buncher, Operation and Performance

We present a description of the Radio Frequency Quadrupole (RFQ) ion trap built as part of the TITAN facility. It consists of a gas-filled, segmented, linear Paul trap and is the first stage of the TITAN setup with the purpose of cooling and bunching radioactive ion beams delivered from ISAC-TRIUMF. This is the first such device to be driven digitally, i.e., using a high voltage ($V_{pp} = \rm{400 \, V}$), wide bandwidth ($0.2 < f < 1.2 \, \rm{MHz}$) square-wave as compared to the typical sinusoidal wave form. Results from the commissioning of the device as well as systematic studies with stable and radioactive ions are presented including efficiency measurements with stable $^{133}$Cs and radioactive $^{124, 126}$Cs. A novel and unique mode of operation of this device is also demonstrated where the cooled ion bunches are extracted in reverse mode, i.e., in the same direction as previously injected.Comment: 34 pages, 17 figure

The magic nature of 132Sn explored through the single-particle states of 133Sn

Atomic nuclei have a shell structure where nuclei with 'magic numbers' of neutrons and protons are analogous to the noble gases in atomic physics. Only ten nuclei with the standard magic numbers of both neutrons and protons have so far been observed. The nuclear shell model is founded on the precept that neutrons and protons can move as independent particles in orbitals with discrete quantum numbers, subject to a mean field generated by all the other nucleons. Knowledge of the properties of single-particle states outside nuclear shell closures in exotic nuclei is important for a fundamental understanding of nuclear structure and nucleosynthesis (for example the r-process, which is responsible for the production of about half of the heavy elements). However, as a result of their short lifetimes, there is a paucity of knowledge about the nature of single-particle states outside exotic doubly magic nuclei. Here we measure the single-particle character of the levels in 133Sn that lie outside the double shell closure present at the short-lived nucleus 132Sn. We use an inverse kinematics technique that involves the transfer of a single nucleon to the nucleus. The purity of the measured single-particle states clearly illustrates the magic nature of 132Sn.Comment: 19 pages, 5 figures and 4 table

TRIGA-SPEC: A setup for mass spectrometry and laser spectroscopy at the research reactor TRIGA Mainz

The research reactor TRIGA Mainz is an ideal facility to provide neutron-rich nuclides with production rates sufficiently large for mass spectrometric and laser spectroscopic studies. Within the TRIGA-SPEC project, a Penning trap as well as a beam line for collinear laser spectroscopy are being installed. Several new developments will ensure high sensitivity of the trap setup enabling mass measurements even on a single ion. Besides neutron-rich fission products produced in the reactor, also heavy nuclides such as 235-U or 252-Cf can be investigated for the first time with an off-line ion source. The data provided by the mass measurements will be of interest for astrophysical calculations on the rapid neutron-capture process as well as for tests of mass models in the heavy-mass region. The laser spectroscopic measurements will yield model-independent information on nuclear ground-state properties such as nuclear moments and charge radii of neutron-rich nuclei of refractory elements far from stability. This publication describes the experimental setup as well as its present status.Comment: 20 pages, 17 figure