| 1. |
- Batani, D., et al.
(författare)
-
Effects of laser prepulse on proton generation
- 2010
-
Ingår i: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. - : Elsevier BV. - 0168-9002. ; 620:1, s. 76-82
-
Konferensbidrag (refereegranskat)abstract
- Low-intensity laser prepulse ( < 10(13) W/cm(2), ns duration) are a major issue in experiments on laser-generation of protons, often limiting the performances of proton sources produced by high-intensity lasers (approximate to 10(19) W/cm(2), ps or fs duration) Several effects are associated to the prepulse and are discussed in this contribution: i) Destruction of thin foil targets by the shock generated by the laser prepulse ii) Creation of preplasma on target front side affecting laser absorption iii) Deformation of target rear side iv) Whole displacement of thin foil targets affecting focusing condition In particular, we show that under oblique high-intensity irradiation and for low prepulse intensities, the proton beam is directed away from the target normal. Deviation is towards the laser forward direction, with an angle that increases with the level and duration of the ASE pedestal. Also, for a given laser pulse, beam deviation increases with proton energy. The observations are discussed in terms of Target Normal Sheath Acceleration, in combination with a laser-controllable shock wave locally deforming the target surface. (C) 2010 Elsevier B.V. All rights reserved.
|
|
| 2. |
- Batani, D., et al.
(författare)
-
Effects of laser prepulse on proton generation
- 2010
-
Ingår i: Radiation Effects and Defects in Solids. - : Informa UK Limited. - 1042-0150 .- 1029-4953. ; 165:6-10, s. 794-802
-
Konferensbidrag (refereegranskat)abstract
- Prepulse is a major issue for laser generation of protons, often limiting the performances of laser sources. Here, we show the use of prepulse (1013W/cm2, ns duration) to actively manipulate the proton beam direction. Under oblique high-intensity irradiation (approximate to 1019W/cm2, ps duration) of the thin foil target, and for low prepulse intensities, the proton beam is directed away from the ounperturbedo target normal. Observations are discussed in terms of target normal sheath acceleration, in combination with a laser-controllable shock locally deforming the target surface.
|
|
| 3. |
- Batani, D., et al.
(författare)
-
Effects of laser prepulses on laser-induced proton generation
- 2010
-
Ingår i: New Journal of Physics. - : IOP Publishing. - 1367-2630. ; 12
-
Tidskriftsartikel (refereegranskat)abstract
- Low-intensity laser prepulses (<10(13) W cm(-2), nanosecond duration) are a major issue in experiments on laser-induced generation of protons, often limiting the performances of proton sources produced by high-intensity lasers (approximate to 10(19) W cm(-2), picosecond or femtosecond duration). Depending on the intensity regime, several effects may be associated with the prepulse, some of which are discussed in this paper: (i) destruction of thin foil targets by the shock generated by the laser prepulse; (ii) creation of preplasma on the target front side affecting laser absorption; (iii) deformation of the target rear side; and (iv) whole displacement of thin foil targets affecting the focusing condition. In particular, we show that under oblique high-intensity irradiation and for low prepulse intensities, the proton beam is directed away from the target normal. Deviation is towards the laser forward direction, with an angle that increases with the level and duration of the ASE pedestal. Also, for a given laser pulse, the beam deviation increases with proton energy. The observations are discussed in terms of target normal sheath acceleration, in combination with a laser-controllable shock wave locally deforming the target surface.
|
|
| 4. |
- Carroll, D. C., et al.
(författare)
-
A modified Thomson parabola spectrometer for high resolution multi-MeV ion measurements-Application to laser-driven ion acceleration
- 2010
-
Ingår i: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. - : Elsevier BV. - 0168-9002. ; 620:1, s. 23-27
-
Konferensbidrag (refereegranskat)abstract
- A novel Thomson parabola ion spectrometer design is presented, in which a gradient electric field configuration is employed to enable a compact design capable of high resolution measurements of ion energy and charge-to-mass ratio. Practical issues relating to the use of the spectrometer for measurement of ion acceleration in high-power laser-plasma experiments are discussed. Example experimental results for ion acceleration from petawatt-class laser interactions with thin gold target foils are presented. (C) 2010 Elsevier B.V. All rights reserved.
|
|
| 5. |
- McCartan, S., et al.
(författare)
-
European boat design innovation group: The Marine Design Manifesto
- 2014
-
Ingår i: RINA, Royal Institution of Naval Architects - Marine Design, Papers. - 9781909024298 ; , s. 1-29
-
Konferensbidrag (refereegranskat)abstract
- A manifesto is a published verbal declaration of the intentions, motives, or views of an issue. It accepts a previously published opinion and promotes a new idea with prescriptive notions for carrying out changes that the authors believe should be made. Marine Design is presented as an interdisciplinary holistic approach to boat design, based on the methodologies of Industrial Design, which are informed by both Human Factors and Engineering. The authors as experts in their respective disciplines present the Marine Design Manifesto as a framework for innovation within the marine industry. In every professional field there are definitive texts, this paper provides advocacy for Marine Design, an interdisciplinary approach in its infancy. The authors review key Industrial Design manifestos in the context of Marine Design. They then present a contextualised Marine Design manifesto. © 2014: The Royal Institution of Naval Architects.
|
|
| 6. |
|
|
| 7. |
- Lundh, Marie Høyer, 1982-
(författare)
-
Health-Related Quality of Life and Return to Work following Breast Cancer
- 2014
-
Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Aim: The overall aim of this thesis was to study health-related quality of life (HRQoL) and return to work in the first 3 years following a breast cancer diagnosis, and to identify clinical and contextual factors associated with these outcomes.Method: The four studies were part of a population-based cohort study including women identified in the Breast Cancer Quality Register in central Sweden. Of 1,573 women asked to participate, 69% (n=1,093) responded to a baseline questionnaire, 62% (n=977) responded at the 1st follow-up and 54% (n=856) participated at the 2nd follow-up (mean time 4, 16 and 38 months post-diagnosis, respectively). Studies II and IV only included women aged <63 years at diagnosis. In Study IV, each woman was individually matched to five breast-cancer-free controls. Questionnaire data on HRQoL, socio-demographics and work-related variables were combined with clinical register, normative and social insurance data.Main findings: Study I: Women with breast cancer, particularly women aged <50 years, experienced poorer HRQoL at baseline than normative data. Chemotherapy, lack of social support, sick leave and a poor financial situation were associated with poorer HRQoL. Study II: Compared with pre-diagnosis working time, 72% of participating women reported no change, 2% had increased their working time, 15% reported a decrease in working time and 11% did not work at the 1st follow-up. Chemotherapy, cancer-related work limitations and less value attached to work increased the odds of job discontinuation/decreased working time. Study III: During the 3 years post-diagnosis, HRQoL generally improved. Less consistent improvements were found among women on sick leave/disability pension pre-diagnosis and women reporting job discontinuation/decreased working time post-diagnosis. Study IV: The proportion of women with breast cancer on sick leave steadily decreased during the 3 years post-diagnosis, but they were more likely to be on sick leave than the controls. Chemotherapy, fatigue and pre-diagnosis sick days predicted sickness absence during the 2nd and 3rd year post-diagnosis.Conclusions: Most women with breast cancer gradually recover, but there are subgroups of women who may be particularly vulnerable. In a clinical setting, increased attention should be directed towards women undergoing chemotherapy, young women, women on sick leave/disability pension pre-diagnosis and women who do not return to work to the same extent as pre-diagnosis.
|
|
| 8. |
|
|
